Just put a bungee cord between your rear limiting straps ad the back of the chassis to hold the straps back so they won't get caught in anything. It should not interfere with how they work at all.
More torque in 2nd gear man trans are slant cut gears to make them quieter turning the right way pulls into gear more turning backwards is pushing it out of gear
I worked on those T - 90 trans years ago. One thing I found is the dogs & tiny needle bearings in/on the barrel shaped gear can wear & cause shifting issues. We made swamp buggies to go out in the Everglades. 2 trans. inline to turn big azz tractor tires with a lil 4 cyl jeep motor. 😎😎
Hey Chris, don't forget to make some form of seal for your two shifter configuration. The old shifter was a ball and socket that sealed itself. Your current design(as of what we have been shown) is open to the air on top so any contaminates can get in, or in jumps and bumps, oil can get out.
Chris, a tip for you when making the cuts for the pipes of the roll cage, use a n appropriate size END MILL in your drill and plenty of cutting oil instead of a whole saw, you will get better and faster cuts. Tony from Western Australia 🇦🇺
Chris yet again your creativity is amazing, you obviously aren't afraid of seeking knowledge from wherever you need to find it and add your own touch to the results I think we need to change your name mate to "The Professor" (of Gilligans 🏝 Fame! ) you always seem to come up with answers to your problems, Your videos are always eagerly awaited and pounced upon as soon as I see them Keep up the creativity Prof, Lots of people are enjoying it In fact 504,000 of us are!!! Tony from Western Australia 🇦🇺
I built a sort of cross between an UTV and a "fun" buggy almost a decade ago. I actually used it for 2 years before i even bothered to go to paint, so don't sweat the small stuff. It's perfectly normal to keep changing stuff until it's just right and to push back painting. Makes the actual paint process more enjoyable, because you just can't improve it any more other than painting it.
Building something instead of waiting for it to ship to you isn't being "Lazy" - I'm pretty sure that's the opposite of "Lazy" - impatient maybe - but Lazy ... NO...
You are getting BOLD, man. I like it! I'm certain the RBW of two years, or even one year ago, would not have been confident enough in his skills to cut modifications to transmission gears. Keep up the good work, and best of luck that it solves the problem!
He said somewhere in his Instagram post about this modification that the transmission has some sort of pin stopping this from happening between the two shafts for each shift fork. So there is a fail safe in it to stop that.
Great job on the dual shifter, bud! That makes perfect sense for the way you’re utilizing the trans as a “HIGH, NEDIUM, AND LOW RANGE” setup rather than a typical 3-speed trans. I like it!
A reverse gear lock is something you’re going to need now. I bet you know that already. It might just be a good idea to have a lockout for every secondary transmission gear. It’s slow to shift, but that’s more of a transfer case anyways.
I forgot how bada*s this buggy looks. It's definitely my favorite build on RUclips. You heard that right, favorite build on "RUclips." Well see when that rock bouncer goes, this one is going to be hard to beat. Can't wait to see it painted.
It’s probably already fixed, but I think I would have used two extra sprockets mounted externally to make the transmission rotate in the correct direction. The same way Cars and Cameras recently did with the Wide Load mini bike they built.
I thought about it after I made this comment, and I don’t think the sprockets would be good for this project. If the transmission input is rotating in the correct direction that would make the output rotation wrong. Unless he did the sprockets on the output too to keep the chain drive direction correct.
You build some amazing vehicles in such a limited space. You ever think about adding onto the existing shop,or build a completely new shed/building? You could easily tear down the shop you are using at the moment,and build something that is twice the size. I would really like to see the awesome projects that you could make utilizing the extra room. It would also allow more space for some new tools as well. No more holding your projects together with random pieces of brick and tree stumps!🤣🤣🤣
Brilliant I waited up late and now you upload as im goin to bed and I start a new job in the morning 😩... We need to have talks... 👀 19 hours later I get to watch 😟 2nd gear always popped out on my old 1985 mini. It's probably more because it's got a straight cut gear one side and synchro the other so it slips off towards 3rd or maybe bounces off of 1st 🤷🏻♂️ never found out why mine did it new gearbox fixed it 😂 Looked like too much oil on that box of yours though
Just an FYI, taps are hardened. One way to remove a broken one it to shatter it with a punch. I’ve had good luck using that method to get the chunks out of the hole.
In a normal gearbox setup, if the input shaft is misaligned to the pilot bearing they will jump out of gear. Because you are using sprockets and increasing the side load on the input shaft you are recreating the same problem. We had the same problem on a gearbox that we fitted as a winch reduction. We ended up supporting the pilot bushing end of the shaft with another bearing to prevent the side load and solved the problem. Hope that helps.
Chris… maybe you know this already, but sometimes you can weld a bolt to the broken tap and unscrew it with the bolt head. Of course, sometimes it’s too tight and you just gotta make a new part! LOL
Taps are very brittle. A small punch and hammer, bust it up. It'll fall out in pieces. Of course, sometimes the material is to soft and you just take the threads out with it lol.
Probably best to redesign to run transmission in correct rotation clockwise as you stated. Good luck, you build the koolest backyard projects I have seen. You are just as innovative as Grindhard in my opinion 😉, keep up the good work.
Optionally, a drive reverser could be set up like the guys on Cars and Cameras did to their fat-tire bike. A stacked set of gears with the chain serpentined around them, and the central gear on the "outside" of the loop. That would only require a sturdy plate mounted around the input of the x-msn.
That's what I was thinking... a plate with a couple idler gears to reverse the direction. IMO would be easier than modifying the internals of the gearbox.
You just use a couple of cables for your shift linkages now, similar to a boat steering cable setup, connected to an h-pattern shifter up front. I had that same transmission in my 1977 CJ7 and it popped out of 2nd every now and then.
Pretty slick idea for the shifter in the trans. But theres 2 issues i see that could cause u problems. 2 shifters leaves the possibilty of catching 2 gears at once, 1st n 2nd/3rd or rev n 2nd/3rd. The other problem i seen is the shifters themselves. Not so much how u designed them, but that they arent sealing the trans now. When u showed the shift forks from the bottom, i could see daylight thru the top load of the shifter. The old shifter kinda sealed itself because of the ball part of the rod. It really needs a seal of some kind around the 2 shifters to keep debris n water out. Those are the 2 concerns i seen with it. But all in all, that was a great idea to fix the shiftin gear problem u were havin. Keep up the great work! Love the builds man! B safe
Let’s say there’s a host of spiral cut or ‘helical’ gears, perhaps spinning the input shaft CCW could have forces of pushing gears away from each other under torq…
Check the transmission lid too there are 2 springs with balls . The springs like to break and cause the transmission to slip out of second. Plus going from 1st to 2nd you have to double clutch .eg… clutch in 1st to neutral then clutch in neutral to 2nd
If you want the limiting straps to always be out of the way of the chains or anything like steering Buckle use a small bungee cord or something similar to it and try to either sew it to the middle of the strap or somewhow attach it about there or just over half of the strap and attach the other end to the top mounting point you got to trial and error on it though
Chris that's pretty sweet that you can take it H pattern out and put 2 shifters in. I'm just lost on the transmission will be in 1st and 2nd or 3rd together how does that work, unless you shift the 1st one to neutral and then shift the other one to 2nd and then 3rd .I guess 🤯🤔BUT Keep up the great work and God Bless you and your family brother.
Minor tip Taps are really hard. If you can Use a lot of heat to destroy the hardness before trying to drill them or use something harder to chisel them out.
It HAS to be coincidence that BOTH transmissions had issues popping out of 2nd gear, but usually, the cause of manuals transmissions popping out of any gear is either worn shift fork pads, or worn synchro rings. I worked for Crown Automotive for many years, who manufactures the aftermarket T-90 synchros (and all other Jeep parts) and we sold thousands of those rings, as they are prone to wearing.
Surprisingly, as a viewer and wanna be garage fabricator at 60. I hope your subscribers keep increasing. Yeah time goes fast. I wish and hope you continue pushing forward, with your health and welfare. Thank You.
I noticed you don't have a seal on top of that transmission for the shifter in case if you do flip it upside down you are going to lose all your transmission oil if you take a rubber glove and cut the two fingers and the bottom piece you could get tired around the top of that transmission and then cut a stinger and it put a zip tie on them it will be a good feel for the top
I love watching you work and love you channel. Why don't you complete a project before starting a new one? Look at this unfinished project full of rust already. Going back and forth between projects is annoying. I was looking forward to see you complete the last one and here you go putting it aside. How many unfinished projects are "we" on now?
Since that box has helical cut gears, when you turn it backwards the axial forces will push the gears away from the faces the internals are designed to push against. So, by my reasoning thats whats pushing it out of gear and lunching gearboxes, and changing those two helical gears to straight cut ones should fix the issue. Having said that, given how light the vehicle is and how much crap you're going to put it through, I'd personally just have a jackshaft where the gearbox is now and have three sets of different ratio sprockets that all require the same chain length and just use a master link to swap the chain to whatever gearset is required as needed on the trail with some pliers. Its simple, easy, and way less complex and lighter than the jeep gearbox Anyways, love it either way man, top work :-)
I completely enjoy your builds, but I'm going to say this again, marine outboard hyd, steering systems are the best application/ fabrication friendly happiness
Could it be, that those helical gears in the secondary gearbox working in the opposite direction that they were designed for, move the shaft, perhaps just slightly, under load, in a way, that makes the second gear pop out? I guess the direction in which those teeth are angled, was designed to work with the input shaft turning in the exact direction it was designed for. Working in the opposite direction turns the lateral forces on those gears in the opposite direction as well, causing a stress in the system in the unexpected direction, right?
Cars and Cameras just dropped a vid today where they showed how to reverse the direction of a chain driven shaft. It looked like an elegant fix. Simple and effective.
So I had a 1977 Jeep CJ5 with the T-90 transmission that also popped out of second gear. Everyone kept telling me I needed new synchros. So me and my uncle replaced them. Still popped out of gear after replacing them. I finally had enough of the jeep and sold it. The new owner said he fixed the problem with it slipping out of gear, he replaced the shifting forks. Either they got slightly bent somehow or wore down enough that it wasn't fully engaging 2nd gear. That could also be your problem? Hopefully the dual shifter fixes the problem
If you put a bungee cord from the center of your limiting strap to the frame pulling away from the shock when you go into compression that bungee will pull the loose slack out of the strap away from the shock and away from your chain depending on which way you mount the spongy
That’s why he has the problem under acceleration with his input running CCW the forces are the same as yours running CW during deceleration. It’s likely because of the bevel cut gears.
Just a heads up, bubba; Even numbered teeth or (but especially AND) whole number ratios (IE your sprocket gearing is exactly 3:1, 3.5:1, 4:1, etc.) is really sub optimal for chain and sprocket tooth wear.
If a gear is straight cut or herring bone it doesn’t matter which direction you drive it, if it is helical cut you need thrust bearings at either or both ends, and depending on the pitch of the cut they may be directional. Differential crown and pinions are directional so you cannot simply drive one in reverse all the time without a lot of noise and premature death. Unless it has a fourth or fifth gear third is direct drive and not usually an actual gear.
get a couple of gear shift cables for the dual shifter, with the shift levers (driver end) pulled into a detent in the middle and each end of a their travel slot to lock in gear or neutral
A T-90 that column shifted(3 on the tree) would eliminate the h-patteren. Also most manual especially 3-speeds had 3rd and reverse on the same shift fork and shaft. Still a good fix.
With two gear levers that’s going to get confusing when your racing around you will at some point end up with two gears selected at the same time which will destroy it and you really need a small chain guard for that strap if you want it to last.
He would leave it in high gear for racing around, that transmission is secondary to the cbr1000’s transmission so he essentially has 18 gears to select from but only 6 are usable at mid-high speeds
It's super dangerous having two shifters like that, because you can lock it into two gears at once... All you needed was new detents and stronger detent springs... (which were those ball bearings that fell out when you pulled the shift bars/ forks apart.
For future reference, to get a broken tap out of a piece, simply use a appropriate size punch, taps are very brittle and are easily broken into small pieces. It's always worked for me.
heilical beveled gears are designed to be loaded in one direction. running them reverse is possible but my guess is the trans would my funny hum noises due to the gears messing the wrong way. running yours gears backwards is maybe why your poping out of gear?, the loading is forcing the gears apart. if you had straight cut gears it would not likely matter, but those trans are noisy and havent been in wide use since the 30s 0r 40s?
Is the only reason for the secondary transmission reverse? It seems like a lot of mechanical complexity for reverse. The 3 forward speeds in addition to the 5 forward speeds of the CBR transmission seems to me overkill. Is using electric reverse from a Goldwing not an option?
Use grease on your taps, or cutting fluid, and only drive them in 3 turns at a time before backing them out a bit. Bolts don't like side load, they're much better at clamping, so wrapping the steel around to the top of the bolt holes would have sufficed. And they really don't like side-load on the threads, you need (for once) longer bolts. Tho now, with what you did to repair the steering, you probably don't need anything else.
The secondary transmission has 2 shift forks. You didn't need to build a single shift lever, then split it back into two, then change direction with both, then bring it back into one again.
I gave the suggestion to how he now has the new setup on the secondary transmission back when he first mounted the first one wish he would have read it would have saved him a lot of time!
You kno wwhat's weird. I bought a set of SAE and Metric cheap chinese tap and dies about 15 years ago and never broke one... yet. And I usually throw mine in a dang drill. SUPER lucky so far. Not too sure but maybe by now they are getting dull or something. I can't explain how they have been so good to me. Today's china stuff lasts maybe 2 holes. Not saying yours are from china, just saying I been super lucky. Have a recommendation for some bottom taps? I have a need for those. I really liked this build. Sorry to say but more than your newer one. This one seems more practical. But your new one seems more purpose built for rock crawling.
Usually, bent shifting forks or misadjusted shifter linkages are the reason transmissions jump out of gear, IE the transmission is not being shifted fully into gear.
I really like the fix for the rack and pinion steering that was a very clean looking mount very cool 👍
Just put a bungee cord between your rear limiting straps ad the back of the chassis to hold the straps back so they won't get caught in anything. It should not interfere with how they work at all.
Or make a small sheet metal chain guard on the trailing arms
that would pull them even more towards the chain lol
Yes, that works. I added a light weight long spring to my H-D Tour-Pak Lid Cable to keep it out of the lid seal.
More torque in 2nd gear man trans are slant cut gears to make them quieter turning the right way pulls into gear more turning backwards is pushing it out of gear
Yep this right here..
this, helical gears will likely be cut in a way they will pull themselves into each other under load
They pull each other together when they're spinning the right way
Exactly, the slants are cut for a specific rotational direction. He'd have to put all the gears in backwards, probably not even possible.
Get a set of straight cut gears.
Good to see you trying to finalize this project. Its by far, my favorite one yet. Gonna look sick when its painted!
I worked on those T - 90 trans years ago. One thing I found is the dogs & tiny needle bearings in/on the barrel shaped gear can wear & cause shifting issues. We made swamp buggies to go out in the Everglades. 2 trans. inline to turn big azz tractor tires with a lil 4 cyl jeep motor. 😎😎
Love your creative injinuity your one hell of a back yard engineer and video maker, keep it up.
You’ve quickly became one of my favorite you tubers. Very intelligent and I enjoy learning from you. God bless
Hey Chris, don't forget to make some form of seal for your two shifter configuration. The old shifter was a ball and socket that sealed itself. Your current design(as of what we have been shown) is open to the air on top so any contaminates can get in, or in jumps and bumps, oil can get out.
Was thinking the same thing. Some kind of rubber boot?
Chris, a tip for you when making the cuts for the pipes of the roll cage, use a n appropriate size END MILL in your drill and plenty of cutting oil instead of a whole saw, you will get better and faster cuts.
Tony from Western Australia 🇦🇺
Chris yet again your creativity is amazing, you obviously aren't afraid of seeking knowledge from wherever you need to find it and add your own touch to the results
I think we need to change your name mate to "The Professor" (of Gilligans 🏝 Fame! ) you always seem to come up with answers to your problems,
Your videos are always eagerly awaited and pounced upon as soon as I see them
Keep up the creativity Prof,
Lots of people are enjoying it
In fact 504,000 of us are!!!
Tony from Western Australia 🇦🇺
I built a sort of cross between an UTV and a "fun" buggy almost a decade ago. I actually used it for 2 years before i even bothered to go to paint, so don't sweat the small stuff. It's perfectly normal to keep changing stuff until it's just right and to push back painting. Makes the actual paint process more enjoyable, because you just can't improve it any more other than painting it.
I love the long videos man!! Keep ‘em coming!
Building something instead of waiting for it to ship to you isn't being "Lazy" - I'm pretty sure that's the opposite of "Lazy" - impatient maybe - but Lazy ... NO...
Was going to say the same thing!
Exact thought crossed my mind
You are getting BOLD, man. I like it! I'm certain the RBW of two years, or even one year ago, would not have been confident enough in his skills to cut modifications to transmission gears. Keep up the good work, and best of luck that it solves the problem!
So by fitting two levers to your gearbox is it now possible to select two gears at once? That would be somewhat catastrophic........
The ultimate parking brake.
He said somewhere in his Instagram post about this modification that the transmission has some sort of pin stopping this from happening between the two shafts for each shift fork. So there is a fail safe in it to stop that.
The detent is built into the shift rails. You will have to have one shifter in neutral before the other one will move.
@@brianstill8954 fok
There is a safety feature in the gearbox that prevents that from happening
Hi , you should use oil when you tap your holes .even with soft metals , they grab the taps and make it easy to break the tap .
*This channel does not have any videos*
@@eriklarson9137 HUH
Great job on the dual shifter, bud! That makes perfect sense for the way you’re utilizing the trans as a “HIGH, NEDIUM, AND LOW RANGE” setup rather than a typical 3-speed trans. I like it!
The work on the transmission is some Gandalf-level shit.. I'm just in awe!
A reverse gear lock is something you’re going to need now. I bet you know that already.
It might just be a good idea to have a lockout for every secondary transmission gear. It’s slow to shift, but that’s more of a transfer case anyways.
I agree.
I forgot how bada*s this buggy looks. It's definitely my favorite build on RUclips. You heard that right, favorite build on "RUclips." Well see when that rock bouncer goes, this one is going to be hard to beat. Can't wait to see it painted.
Great content! Your work on the gearbox is awesome. Looking forward to seeing it work.
You have come a long way from that tote-goat thing you built a long time ago. Keep up the good work. Good luck to you and yours .
Dang bro you can lay some fancy beads and make it look easy
It’s probably already fixed, but I think I would have used two extra sprockets mounted externally to make the transmission rotate in the correct direction. The same way Cars and Cameras recently did with the Wide Load mini bike they built.
I thought about it after I made this comment, and I don’t think the sprockets would be good for this project. If the transmission input is rotating in the correct direction that would make the output rotation wrong. Unless he did the sprockets on the output too to keep the chain drive direction correct.
That was some cool new stuff this week! I hope it all works out.
You build some amazing vehicles in such a limited space. You ever think about adding onto the existing shop,or build a completely new shed/building? You could easily tear down the shop you are using at the moment,and build something that is twice the size. I would really like to see the awesome projects that you could make utilizing the extra room. It would also allow more space for some new tools as well. No more holding your projects together with random pieces of brick and tree stumps!🤣🤣🤣
I’ve only been subscribed a couple of months and must say I’m really enjoying catching up on everything you’ve built . Such a great channel my man 👍👍
Brilliant I waited up late and now you upload as im goin to bed and I start a new job in the morning 😩... We need to have talks... 👀
19 hours later I get to watch 😟
2nd gear always popped out on my old 1985 mini. It's probably more because it's got a straight cut gear one side and synchro the other so it slips off towards 3rd or maybe bounces off of 1st 🤷🏻♂️ never found out why mine did it new gearbox fixed it 😂
Looked like too much oil on that box of yours though
Brilliant shifter work 👌☮
Put harder detention springs on the forks. Will help to hold the gear 🇵🇷
Or make sure the shafts are clean to allow full engagement
Exactly
Just an FYI, taps are hardened. One way to remove a broken one it to shatter it with a punch. I’ve had good luck using that method to get the chunks out of the hole.
Just started watching today, this guy is a genius!
Awesome video, the shifter modification was fire. Greetings from Uruguay
In a normal gearbox setup, if the input shaft is misaligned to the pilot bearing they will jump out of gear.
Because you are using sprockets and increasing the side load on the input shaft you are recreating the same problem.
We had the same problem on a gearbox that we fitted as a winch reduction.
We ended up supporting the pilot bushing end of the shaft with another bearing to prevent the side load and solved the problem.
Hope that helps.
Chris… maybe you know this already, but sometimes you can weld a bolt to the broken tap and unscrew it with the bolt head. Of course, sometimes it’s too tight and you just gotta make a new part! LOL
Taps are very brittle. A small punch and hammer, bust it up. It'll fall out in pieces.
Of course, sometimes the material is to soft and you just take the threads out with it lol.
Probably best to redesign to run transmission in correct rotation clockwise as you stated. Good luck, you build the koolest backyard projects I have seen. You are just as innovative as Grindhard in my opinion 😉, keep up the good work.
Optionally, a drive reverser could be set up like the guys on Cars and Cameras did to their fat-tire bike. A stacked set of gears with the chain serpentined around them, and the central gear on the "outside" of the loop. That would only require a sturdy plate mounted around the input of the x-msn.
That's what I was thinking... a plate with a couple idler gears to reverse the direction. IMO would be easier than modifying the internals of the gearbox.
You just use a couple of cables for your shift linkages now, similar to a boat steering cable setup, connected to an h-pattern shifter up front. I had that same transmission in my 1977 CJ7 and it popped out of 2nd every now and then.
Bro, you're a genius and this is interesting entertainment. Been watching your videos for years, good shit man.
That was funny watching you brush off the outside of the drainplug so as not to contaminate the waste oil.
The song at 18 min mark is amazing boss!!
Those diamond burrs are also good for getting broken taps out. Assuming you can't make a new part quickly.
Pretty slick idea for the shifter in the trans. But theres 2 issues i see that could cause u problems. 2 shifters leaves the possibilty of catching 2 gears at once, 1st n 2nd/3rd or rev n 2nd/3rd.
The other problem i seen is the shifters themselves. Not so much how u designed them, but that they arent sealing the trans now. When u showed the shift forks from the bottom, i could see daylight thru the top load of the shifter. The old shifter kinda sealed itself because of the ball part of the rod. It really needs a seal of some kind around the 2 shifters to keep debris n water out.
Those are the 2 concerns i seen with it. But all in all, that was a great idea to fix the shiftin gear problem u were havin. Keep up the great work! Love the builds man! B safe
Let’s say there’s a host of spiral cut or ‘helical’ gears, perhaps spinning the input shaft CCW could have forces of pushing gears away from each other under torq…
Check the transmission lid too there are 2 springs with balls . The springs like to break and cause the transmission to slip out of second. Plus going from 1st to 2nd you have to double clutch .eg… clutch in 1st to neutral then clutch in neutral to 2nd
This man has outgrown his shed.
This is one of my favorite vehicles you built
What was the tool you were using in the press to cut the keyways?
Very cool project! This and the 4x4 buggy are both very sharp designs.
Love ur builds u are inspiring some of us to get to wrenching
If you want the limiting straps to always be out of the way of the chains or anything like steering Buckle use a small bungee cord or something similar to it and try to either sew it to the middle of the strap or somewhow attach it about there or just over half of the strap and attach the other end to the top mounting point you got to trial and error on it though
Chris that's pretty sweet that you can take it H pattern out and put 2 shifters in. I'm just lost on the transmission will be in 1st and 2nd or 3rd together how does that work, unless you shift the 1st one to neutral and then shift the other one to 2nd and then 3rd .I guess 🤯🤔BUT Keep up the great work and God Bless you and your family brother.
Minor tip
Taps are really hard.
If you can Use a lot of heat to destroy the hardness before trying to drill them or use something harder to chisel them out.
It HAS to be coincidence that BOTH transmissions had issues popping out of 2nd gear, but usually, the cause of manuals transmissions popping out of any gear is either worn shift fork pads, or worn synchro rings. I worked for Crown Automotive for many years, who manufactures the aftermarket T-90 synchros (and all other Jeep parts) and we sold thousands of those rings, as they are prone to wearing.
Surprisingly, as a viewer and wanna be garage fabricator at 60. I hope your subscribers keep increasing. Yeah time goes fast. I wish and hope you continue pushing forward, with your health and welfare. Thank You.
Brother waiting rock bouncer build.. especially final look & trial run
Wow that's crayzee. How hard would it be to run the trans in the correct direction?
I noticed you don't have a seal on top of that transmission for the shifter in case if you do flip it upside down you are going to lose all your transmission oil if you take a rubber glove and cut the two fingers and the bottom piece you could get tired around the top of that transmission and then cut a stinger and it put a zip tie on them it will be a good feel for the top
Your a really smart dude. Work the problem. You got this.
Love the videos.
PLEASE use chain guards on the rear to protect those limiting straps!
I love watching you work and love you channel. Why don't you complete a project before starting a new one? Look at this unfinished project full of rust already. Going back and forth between projects is annoying. I was looking forward to see you complete the last one and here you go putting it aside. How many unfinished projects are "we" on now?
Since that box has helical cut gears, when you turn it backwards the axial forces will push the gears away from the faces the internals are designed to push against. So, by my reasoning thats whats pushing it out of gear and lunching gearboxes, and changing those two helical gears to straight cut ones should fix the issue.
Having said that, given how light the vehicle is and how much crap you're going to put it through, I'd personally just have a jackshaft where the gearbox is now and have three sets of different ratio sprockets that all require the same chain length and just use a master link to swap the chain to whatever gearset is required as needed on the trail with some pliers. Its simple, easy, and way less complex and lighter than the jeep gearbox
Anyways, love it either way man, top work :-)
you can ad some rubber band from midle to top of strap to prevent them being lose
I completely enjoy your builds, but I'm going to say this again, marine outboard hyd, steering systems are the best application/ fabrication friendly happiness
Excellent work as usual, thanks for sharing. Paul U.K.
Have you replaced all the balls and springs in the lid? Check the lid rail detent slots, for excessive wear.
Look up a tap extractor set uses little fingers that run down the cutting lanes of the tap to get some leverage to rotate a broken tap out.
Could it be, that those helical gears in the secondary gearbox working in the opposite direction that they were designed for, move the shaft, perhaps just slightly, under load, in a way, that makes the second gear pop out? I guess the direction in which those teeth are angled, was designed to work with the input shaft turning in the exact direction it was designed for. Working in the opposite direction turns the lateral forces on those gears in the opposite direction as well, causing a stress in the system in the unexpected direction, right?
Cars and Cameras just dropped a vid today where they showed how to reverse the direction of a chain driven shaft. It looked like an elegant fix. Simple and effective.
So I had a 1977 Jeep CJ5 with the T-90 transmission that also popped out of second gear. Everyone kept telling me I needed new synchros. So me and my uncle replaced them. Still popped out of gear after replacing them. I finally had enough of the jeep and sold it. The new owner said he fixed the problem with it slipping out of gear, he replaced the shifting forks. Either they got slightly bent somehow or wore down enough that it wasn't fully engaging 2nd gear. That could also be your problem? Hopefully the dual shifter fixes the problem
If you put a bungee cord from the center of your limiting strap to the frame pulling away from the shock when you go into compression that bungee will pull the loose slack out of the strap away from the shock and away from your chain depending on which way you mount the spongy
Most Jeeps including mine sometimes pops out of second gear especially when going over bumps. Mostly seems to happen under deceleration.
That’s why he has the problem under acceleration with his input running CCW the forces are the same as yours running CW during deceleration.
It’s likely because of the bevel cut gears.
Just a heads up, bubba; Even numbered teeth or (but especially AND) whole number ratios (IE your sprocket gearing is exactly 3:1, 3.5:1, 4:1, etc.) is really sub optimal for chain and sprocket tooth wear.
If a gear is straight cut or herring bone it doesn’t matter which direction you drive it, if it is helical cut you need thrust bearings at either or both ends, and depending on the pitch of the cut they may be directional. Differential crown and pinions are directional so you cannot simply drive one in reverse all the time without a lot of noise and premature death.
Unless it has a fourth or fifth gear third is direct drive and not usually an actual gear.
get a couple of gear shift cables for the dual shifter, with the shift levers (driver end) pulled into a detent in the middle and each end of a their travel slot to lock in gear or neutral
A T-90 that column shifted(3 on the tree) would eliminate the h-patteren. Also most manual especially 3-speeds had 3rd and reverse on the same shift fork and shaft.
Still a good fix.
With two gear levers that’s going to get confusing when your racing around you will at some point end up with two gears selected at the same time which will destroy it and you really need a small chain guard for that strap if you want it to last.
the transmission is built that we that you cant select 2 gears at once, one shaft has to be on "neutral" for the other to move.
He would leave it in high gear for racing around, that transmission is secondary to the cbr1000’s transmission so he essentially has 18 gears to select from but only 6 are usable at mid-high speeds
add a little spring to the top of the strap to keep it tight
Third is direct drive 1:1 ratio. The counter shat isn't used. No popping out.
I've noticed a transformation with every passing episode, you've begun to resemble Daniel Day Lewis.
soft bungy cords to the limiting straps will suck up the slack when collapsed and just sitting there.
It's super dangerous having two shifters like that, because you can lock it into two gears at once... All you needed was new detents and stronger detent springs... (which were those ball bearings that fell out when you pulled the shift bars/ forks apart.
u need account for straps stretch. look up formulam length over time.
For the steering should use grade 8 bolts but clamps will work .
For future reference, to get a broken tap out of a piece, simply use a appropriate size punch, taps are very brittle and are easily broken into small pieces. It's always worked for me.
heilical beveled gears are designed to be loaded in one direction. running them reverse is possible but my guess is the trans would my funny hum noises due to the gears messing the wrong way. running yours gears backwards is maybe why your poping out of gear?, the loading is forcing the gears apart. if you had straight cut gears it would not likely matter, but those trans are noisy and havent been in wide use since the 30s 0r 40s?
Is the only reason for the secondary transmission reverse? It seems like a lot of mechanical complexity for reverse. The 3 forward speeds in addition to the 5 forward speeds of the CBR transmission seems to me overkill. Is using electric reverse from a Goldwing not an option?
Did you consider cables for shifter vs linkage. Like on an atlas transfer case? Also where can I get a T Shirt?
I think sometime laziness creates Genius... Awesome job bud. Luv this project. Hope alls well aaanndd I'll see ya on the next video...lol🇦🇺🙃👎
If I am right,you now have park. Try putting in reverse and 2 or 3 at same time. It should lock up transmission.
Wondering why you don't use Loctite on any of your fasteners, I use to use Gorilla Snot on the ones I had to take off regularly.
Sew a wide piece of heavy duty elastic to you're limiting straps. This will take up the slack and keep them out of the way.
Havent you opened up the top of the gearbox to water and other crap to get into it?? I thought I saw a hole by the dual linkage?
Use grease on your taps, or cutting fluid, and only drive them in 3 turns at a time before backing them out a bit. Bolts don't like side load, they're much better at clamping, so wrapping the steel around to the top of the bolt holes would have sufficed. And they really don't like side-load on the threads, you need (for once) longer bolts. Tho now, with what you did to repair the steering, you probably don't need anything else.
The secondary transmission has 2 shift forks. You didn't need to build a single shift lever, then split it back into two, then change direction with both, then bring it back into one again.
I gave the suggestion to how he now has the new setup on the secondary transmission back when he first mounted the first one wish he would have read it would have saved him a lot of time!
hey chris ever think of making a crazy fast street fighter kind of build with cantilever suspension?
Have You Think if you some day put front of the buggy, and from the height of the steering Wheel a plastic panels.
You kno wwhat's weird. I bought a set of SAE and Metric cheap chinese tap and dies about 15 years ago and never broke one... yet. And I usually throw mine in a dang drill. SUPER lucky so far. Not too sure but maybe by now they are getting dull or something. I can't explain how they have been so good to me. Today's china stuff lasts maybe 2 holes. Not saying yours are from china, just saying I been super lucky. Have a recommendation for some bottom taps? I have a need for those. I really liked this build. Sorry to say but more than your newer one. This one seems more practical. But your new one seems more purpose built for rock crawling.
Usually, bent shifting forks or misadjusted shifter linkages are the reason transmissions jump out of gear, IE the transmission is not being shifted fully into gear.
Just one thing about your shifter if you leave one in gear and shift the other might get it locked between two gears and that's a pain