I enjoyed looking at an M8. Never had any opertunity to even look at one. Haven't been in a dealership for years. To busy working on the farm since I been gone for 40 years. Totally retired now and decided to move back to the ranch and build it back. Thanks for the show and tell.
Kudos to Kevin, this teardown shows how carefully Kevin is cracking bolts loose first without going to town with the power tools. This helps with getting a feel how bolts are coming loose and avoid ruining threads or breaking bolts.
I saw the name of your garage is Baxter's Garage. There is a Harley dealership in SE Ohio just North of Gallipolis in a small community called Bidwell named BAXTER'S HARLEY DAVIDSON. Thought you might get a kick out of this. I've been an automotive mechanic most of my life who rides a Harley with a M8 114 CI engine. What were the two black boxes you removed from the top of the heads, one per head. They looked like some sort of sensor?
Great stuff as always. This really doesn’t instill much confidence in a stock M8. HD needs to subscribe to the channel so they can see what needs to be corrected from the factory.
Sadly didn't manage to catch this one live, but as always excellent content, and always learning. Thank you for sharing with us once again Kevin. Looking forward to the rest of the teardown.
I found the reason why the M8 was sumping! I changed 2 simple parts and all the problems where fixed! Just be sure that the logo's on the tank have no HD on it.
Great video! Will this issue cause excessive engine heat also? I’ve got a 107” m8 that I’ve done a s&s 475 cam, plate and oil pump and within last 6 months I’m sumping bad and engine temps are up to 325 degrees
Hi from the U.K. These vids are great. Thanks for posting. Are you seeing less sumping issues on newer M8s than you have on early model year ones or has nothing improved from the MoCo?
Hey Kevin, I saw your little mishap at the start during the tear down of the cam chest. I won't tell anyone though 😁 I might have made that mistake once myself
@@KevinBaxter you pulled the cam chain & drive sprockets off before you unloaded the lifters and rocker gear. No big deal really as the engine was being disassembled for inspection etc.
Kevin, not sure if you can give me a route to explore. Stock 107 2018 M8 Softail, just under 50k miles. No issues until about 2 weeks ago when I was on a trip. Now using about 1/2qt of oil every 400 miles, about double what it was going through. Getting good amount of oil in air cleaner in addition to showing signs of ash on the spark plugs. Shop I stopped at thinks the breathers in the heads are bad. Power feels good, fuel mileage pretty normal, other than fighting headwinds
Hi Kevin, great tear down and explanation. Maybe it is not very important in this issue but I think front cylinder lifters were installed wrong in this engine. According to Wood's instruction manual for M8 front cylinder lifter "Knight Prowler" logo should faces rearward, here was forward.
Harley Davidson, a company that's been building the same type of motor for 118 years , and they still cant get it right, wtf.... Sorry Kev , nothing against your videos I just get pissed of every time you show me inside the toilet i just through over 30k down. Great you tube channel, thank....
Kevin as always love the content especially M8 since I’ve experienced 7 thousandths run out at 1200 miles. Haven’t lost faith as now trued and welded should be good. Hoping it’s back next week. No top end work as of now cuz as you can imagine this was unexpected when I went in for a cam. The expenses jumped a bit.
Some large diesels have a removable ring at the top of the cylinder to prevent carbon build up on the piston,. I have seen engines run on a special temporary oil to help ease the bore polishing. I don't know how many miles this engine has done but it seems a shame it needs an overhaul when it seems in reasonable condition. I can't see why the oil pump doesn't scavenge that excess oil. Sorry to be thick Kevin, I'm no HD owner. Thank you.
The problem was there from new....at this point has 3000 miles on it. Thanks for watching. Never be afraid to ask a question...were all here to learn sir.
thank you for the video, it is really great to see your videos. I just bought a bike with an M8.. I am trying to understand what causes the sumping... I understand what it does to the engine (thanks to your video) but what causes the sumping in the first place? And what can be done to prevent it? oil pump? venting the crankcase ? thank you
Just curious as to the year that this M8 was built? It seems that the later M8s are just fine but once people start modifying them then they end up with issues. TIA
2020. The mods done well, most often, are not the cause of these issues. Not checking the engine well with proper testing before the mods seems to be the issue....then the mod gets blamed. thats what i see most often in my shop.
I know that this question is not about sumping, but it does relate to engine oil shenanigans. I've asked around, and searched the internet, but no really helpful information, so this seems as good a place to ask as any. On my '18 M8 107 For the past amount of time, I've noticed that my engine started using a lot of engine oil. Over the past 800 km., I've taken notes, and it shows that the engine uses about 0.1L per 100 km. When I removed the derby cover to check the oil level in there, a ton of oil came out. After getting the level in the primary to the correct level, I have noted that the amount of engine oil disappearing, is pretty exactly equal to the surplus in the primary. If anybody has any ideas, it would be greatly appreciated!
What you are seeing is several weeks of sludge that had settled to the bottom from extreme overheating....sitting and waiting for me to tear it down. The other oil you see is much darker than it appears. I use color correction in editing which enhances reds and blues. If you watch part 3...you'll see how it even appears the oil has a red tint after being mixed in the tray, and the black mix that splashed all over the teardown table is barely visable...appears almost completely clear. The sludge was like tar....probably the worst I've ever seen.
Excellent videos. But why does excessive crank pressure induce sumping ? I though that excessive pressure would help “blow out” the oil and help feed the sump pump?
Hi. I just purchased a 2021 114 low rider s with the Milwaukee 8. What should i replace in this M8 to stop mechanical damage & failure in the near future. It is not run in as yet. Could you Please enlighten me on what parts & brand for replacement. I have seen & heard many problems with this mototor. Ie. Sumping, oil pump, oil pan, ect. I'm now starting to stress about buying this 2021 low rider 😖.. Ps. I would realy appreciate your imput into this matter. This is my first M8 . I also have a 1982 1340 Sturgis. Cheers from Down Under Australia..🇦🇺🇦🇺
Very cool, the blue & labelled plates for bolts & such to fit in the proper sequence. I thought about building a bike using the 124 engine but of S&S make. Seems the Milwaukee 8 has a lot of problems. Or, are they the same engine with different names on the thing? Any suggestions?
Im thinking after watching this video that I should just purchase a complete long block engine so I know all my issues or potential issues are solved. Im a huge fan of S&S but any ideas if my thinking is solid? Or should I look at other options? Thanks... great video.
What Year is this motor? Has Harley Addressed and Solved the sumping issues in the M8 107. I have a 2020 and with all the sumping issue talks on line, has me concerned for the longevity of my motor.
@16:00 you lose me. Chicken or the egg? Overlubrication caused the cylinder to glaze, which caused leakdown and crank pressure. But sumping caused the overlubrication? Is the glazing built up over the crosshatch, or worn away crosshatch essentially polishing the wall? Seems like you're saying one caused the other, but what precipitated all of it?
it was stated in the video...from new, a stuck piston oiler fed more oil in the case than the stock pump could keep up with which adversely affected seating of the rings. once that was compromised, he had excessive crankcase pressure...more than the stock or aftermarket pump could handle.
So, do people make their rings wear causing engines to sump by allowing the engine to run at too low an rpm under load or are too infrequent oil changes combined with “spirited” riding habits wearing the rings first? Here in the South even normal riding conditions during prolonged rides are going to cause engine temps to skyrocket due to the increased humidity which will cause blow-by and ring wear, no? Ring wear and blow-by seem to be the two causative factors leading to “sumping” or is there more to the story?
I took her off the dealer lot and broke her in best I could. It did blow oil out of the crankcase breather from day one.. engine was never lugged.. after break in... it was ridden very hard..
So even after a Fueling cam plate and oil pump, there was still pretty bad sumping? What is causing this Kevin? I thought the new designed oil pump on the sump side was supposed to take care of this? Got my bike in the shop right now getting a new oil pump and a mild cam install, keeping the Harley cam plate because I was advised the redesigned Harley pump was a good piece, this on my 2017 CVO Ultra 114 motor. Bad advice Kevin?
I really like watching your tear down videos, but now I am wondering why anyone would want to buy a Harley. Just how dependable is the M-8 engine or any Harley engine? I love the style of Harley bikes but I don't want to have to do upgrades or all kinds of extensive maintenance just to ride one.
i bought a used 2018 fatboy with a m8 114 and has a lot of blowby i did the trans cover vent and is keeping oil from going in throttle body and bought a ss 576 cam and oil pump and will be tearing into it in a week crossing my fingers that the crank runout is in spec or ill have to tear it all down and send the crank out . after watching this i might as well get a big bore kit so i can start new . how can they sell bikes with trash engines only 5 yrs old
i was wondering where i can get the bolt holder for the parts to put the bolts back into the right place when putting back together don’t know what it is call i see that it is blue
If you were to add a SS or fueling camplate and oil pump would this remove excess oil in your engine case if in fact the oil pump was the issue of sumping ?
How many miles did he have on that engine? This is making me nervous. I have oil splatter on my right bag, coming from the intake. I feel the heat and we haven’t hit the warm months yet. 😬 When this come in for warranty work caused by sumping, does Harley or S&S want you to send the computer info from the bike? Specifically, the speeds it’s been running?
I’m riding a new 2020 SGS with a Stage 4 kit. Why is it that after an engine builder gets there hands on these big kits, they are having problems? What is an engine builder doing different than the H-D mechanics?
Correction: I’m riding a new 2020 SGS with a Stage 4 kit and 2k miles. Why is it that after an engine builder gets there hands on these big kits, they are not having problems? What is an engine builder doing different than the H-D mechanics?
This is a complex answer. I wont say that HD dealer mechanics dont have the same or similar issues....they do. Much of what you are referring to are aftermarket shops not being bound by the limitation of the MC. That said...many, many, riders primary goal to to squeeze as much power out of one of these as possible to get an impressive dyno sheet. That puts shops in the position of building to the ragged edge of reliability. Also...many want this work done at the lowest price possible. Mixing those often results in less than desirable results in the longevity and reliability arenas. We will not compromise reliability and longevity for performance. Also...keep in mind...many of these problems also occur on bone stock motorcycles with zero modifications. With proper build practices, and excellent components, the chances of having issues are reduced exponentially.
I just installed an S&S 465 cam, pump, and cam plate on my M8, 107. When I accelerate, oil blows from the top of all four pushrod tubes. Could this be caused by sumping?
Love that jig that you use to keep track of where each and every bolt goes.
Thats awesome. Is that from the P n A catalogue or aftermarket?
As always Kevin, appreciate you inviting us into your shop and sharing your knowledge & expertise! Looking forward to part 2!
thank you sir. part 2 coming tonight at 6!
Really do enjoy the tear downs - along with the no frills,frank explanations on what's going on.
Onya !!
thank you sir. part 2 tonight....will reveal a lot about these M8s....many may be surprised.
I enjoyed looking at an M8. Never had any opertunity to even look at one. Haven't been in a dealership for years. To busy working on the farm since I been gone for 40 years. Totally retired now and decided to move back to the ranch and build it back. Thanks for the show and tell.
thank you sir.
Kudos to Kevin, this teardown shows how carefully Kevin is cracking bolts loose first without going to town with the power tools. This helps with getting a feel how bolts are coming loose and avoid ruining threads or breaking bolts.
thank you sir
Helps a lot. Thank you from cebu Philippines
Bolt organizer is really cool. That guy calling to tell you your warranty is about to expire sure was persistent. 😁
LOL. yes he was. bolt organizers can be found here baxtersgarage.square.site/product/jimshardwareorganizers/104?cp=true&sa=true&sbp=false&q=false
Many thanks Kevin, taking us all along for the ride is truly appreciated. Cheers from Beaver Valley.
Glad you enjoyed it thank you sir!
Thanks for showing and the great explanations.
Glad you enjoyed it!
Cannot express how helpful it is that you will let us accompany you on deep dives like this. Thank you.
Loving the camera on your head.
Thanks Kev, really informative. I'm doing a stage 2 within the next 2 months, watching/ learning/ listening to all videos. Thank you Sir.
🙂🤘👍
Fantastic! thank you sir!
Really fascinated by these engine teardowns and the knowledge you possess. Just started riding this year, currently ride a 1983 Honda Magna V45.
I saw the name of your garage is Baxter's Garage. There is a Harley dealership in SE Ohio just North of Gallipolis in a small community called Bidwell named BAXTER'S HARLEY DAVIDSON. Thought you might get a kick out of this.
I've been an automotive mechanic most of my life who rides a Harley with a M8 114 CI engine. What were the two black boxes you removed from the top of the heads, one per head. They looked like some sort of sensor?
Those are crank breather valves. Basically...a PCV valve. Lol...im familiar...but not related.
Thank you Kevin for another excellent, informative video. Keep up the good work! Cheers.
Thanks 👍 appreciate it sir!
Thanks for such good informative videos Kevin.. I’m learning a lot that I didn’t know. Thank you sir!
My pleasure! thank you!
As it always is with you, EXCELLENT!!! I am waiting for the reason and I'm waiting for the wheel bearing install video. Thanks!
thank you sir!!!
Yes, Thanks again Kevin. looking forward to the next video.
thank you.....part 2 coming tonight!
Great video thank you.
Good informational video.
When I get ready for my big bore on my M8
I’m bringing it to you. I’m about 3 hours from Winder.
Awesome looking forward to this build Kevin..👍🏻🇦🇺
You and me both! thanks!
Great stuff as always. This really doesn’t instill much confidence in a stock M8. HD needs to subscribe to the channel so they can see what needs to be corrected from the factory.
I just bought an Indian challenger is that says something.....
Much appreciated
great video
Thanks!
Thanks Kevin! Always great content on your channel! Best channel on the Tube!
Wow, thanks! appreciate that very much sir
Kevin I am subscribed as of today. Love anything HD. Bought a new 21 Tri Glide 6 months ago. Will be watching for Part 2.
Great video man, can’t wait to watch the build👍🏼
Thanks 👍 Appreciate it!!!
As always, an excellent video, thanks Kevin!
Glad you enjoyed it. thank you very much!
Great stuff as always! Your presentation get better and better. Thanks so much for the knowledge you share.
I appreciate that! Thank you sir. Part 2 tonight!
We thank you for sharing
Thanks for watching!
@@KevinBaxter Heading your way one day soon
Sadly didn't manage to catch this one live, but as always excellent content, and always learning. Thank you for sharing with us
once again Kevin. Looking forward to the rest of the teardown.
thank you very much sir
Fantastic video!!!! Thank you for sharing and telling how it is.
Glad you enjoyed it! thank you sir.
Quality content. Thanks so much.
Glad you enjoy it! thank you!
I found the reason why the M8 was sumping! I changed 2 simple parts and all the problems where fixed! Just be sure that the logo's on the tank have no HD on it.
🤣
Love these videos, keep up the good work Kevin. LLR from Denmark.
Thank you very much!
I sure wish you were close to Chattanooga Tennessee area this place is in bad need of Dam good Harley techs that know what they’re doing
It may be Sumping because of crank run out on the pinion side maybe. Love your work Kevin
Pesky Piston Oilers.....
First Adam 12 and now Baxters Garage,,,,,Nice Wednesday
Always an education! 👍
thank you very much Rick....and huge appreciation for your support!
Great video! Will this issue cause excessive engine heat also? I’ve got a 107” m8 that I’ve done a s&s 475 cam, plate and oil pump and within last 6 months I’m sumping bad and engine temps are up to 325 degrees
Great video brother. I know who will do any engine upgrade I am planning on doing. Awesome job.
Thank you sir!!!
Kevin, I love these videos!
thank you sir!
Nice video
Thanks appreciate it!
Love the videos brother, keep it up!
Thanks! Will do!
Hi from the U.K. These vids are great. Thanks for posting. Are you seeing less sumping issues on newer M8s than you have on early model year ones or has nothing improved from the MoCo?
Hey Kevin, I saw your little mishap at the start during the tear down of the cam chest. I won't tell anyone though 😁 I might have made that mistake once myself
You can tell me...LOL. Thanks MTM ;)
@@KevinBaxter you pulled the cam chain & drive sprockets off before you unloaded the lifters and rocker gear. No big deal really as the engine was being disassembled for inspection etc.
Kevin, not sure if you can give me a route to explore. Stock 107 2018 M8 Softail, just under 50k miles. No issues until about 2 weeks ago when I was on a trip. Now using about 1/2qt of oil every 400 miles, about double what it was going through. Getting good amount of oil in air cleaner in addition to showing signs of ash on the spark plugs.
Shop I stopped at thinks the breathers in the heads are bad. Power feels good, fuel mileage pretty normal, other than fighting headwinds
Awesome as always !
Thank you! Cheers!
Nice moves
Hi Kevin, great tear down and explanation. Maybe it is not very important in this issue but I think front cylinder lifters were installed wrong in this engine. According to Wood's instruction manual for M8 front cylinder lifter "Knight Prowler" logo should faces rearward, here was forward.
Great content and well presented. Keep up the good work.
Much appreciated! thank you . part 2 coming tonight!
Nice video. What do you think caused the glazing of the cylinders?, which lead to the sumping?
Will be covering that in tonights video in more detail!
Harley Davidson, a company that's been building the same type of motor for 118 years , and they still cant get it right, wtf....
Sorry Kev , nothing against your videos I just get pissed of every time you show me inside the toilet i just through over 30k down.
Great you tube channel, thank....
Not nearly as much as we appreciate you👍👍Good stuff, as always Kecin!!
I appreciate that! Thank you very much sir.
Another great video.
Glad you enjoyed it. Thank you again!
how can this be on a new motor? crazy yeh to think on m8
Kevin as always love the content especially M8 since I’ve experienced 7 thousandths run out at 1200 miles. Haven’t lost faith as now trued and welded should be good. Hoping it’s back next week. No top end work as of now cuz as you can imagine this was unexpected when I went in for a cam. The expenses jumped a bit.
thank you. best of luck!
Some large diesels have a removable ring at the top of the cylinder to prevent carbon build up on the piston,. I have seen engines run on a special temporary oil to help ease the bore polishing. I don't know how many miles this engine has done but it seems a shame it needs an overhaul when it seems in reasonable condition. I can't see why the oil pump doesn't scavenge that excess oil. Sorry to be thick Kevin, I'm no HD owner. Thank you.
The problem was there from new....at this point has 3000 miles on it. Thanks for watching. Never be afraid to ask a question...were all here to learn sir.
thank you for the video, it is really great to see your videos. I just bought a bike with an M8.. I am trying to understand what causes the sumping... I understand what it does to the engine (thanks to your video) but what causes the sumping in the first place? And what can be done to prevent it? oil pump? venting the crankcase ? thank you
Just curious as to the year that this M8 was built? It seems that the later M8s are just fine but once people start modifying them then they end up with issues. TIA
2020. The mods done well, most often, are not the cause of these issues. Not checking the engine well with proper testing before the mods seems to be the issue....then the mod gets blamed. thats what i see most often in my shop.
@@KevinBaxter Appreciate you taking the time to answer
Damn good video,very informative like always 👍
thank you very much!
I know that this question is not about sumping, but it does relate to engine oil shenanigans. I've asked around, and searched the internet, but no really helpful information, so this seems as good a place to ask as any.
On my '18 M8 107 For the past amount of time, I've noticed that my engine started using a lot of engine oil.
Over the past 800 km., I've taken notes, and it shows that the engine uses about 0.1L per 100 km.
When I removed the derby cover to check the oil level in there, a ton of oil came out.
After getting the level in the primary to the correct level, I have noted that the amount of engine oil disappearing, is pretty exactly equal to the surplus in the primary.
If anybody has any ideas, it would be greatly appreciated!
Was there an Oil seal # 62400205 on the back of the oil pump mating surface?
Great chanell the best of the best.Waiting for part 2.
Thank you very much sir. hope you caught part 2 and 3.
How did the new fresh oil get into the camchest without mixing with dirty oil?
What you are seeing is several weeks of sludge that had settled to the bottom from extreme overheating....sitting and waiting for me to tear it down. The other oil you see is much darker than it appears. I use color correction in editing which enhances reds and blues. If you watch part 3...you'll see how it even appears the oil has a red tint after being mixed in the tray, and the black mix that splashed all over the teardown table is barely visable...appears almost completely clear. The sludge was like tar....probably the worst I've ever seen.
God bless you bro. But I’m not buying another Harley ,
No one cares
Excellent videos. But why does excessive crank pressure induce sumping ? I though that excessive pressure would help “blow out” the oil and help feed the sump pump?
Hey Kevin do all the m,8,s have a tear down and the sumping or just the ones that are bump up to make it bigger motor
Is the glazing do to improper break in? Not seating rings ?
in part. next video coming tonight
i really like the video's keep 'em coming
Thank you eddie!
Hi. I just purchased a 2021 114 low rider s with the Milwaukee 8. What should i replace in this M8 to stop mechanical damage & failure in the near future. It is not run in as yet. Could you Please enlighten me on what parts & brand for replacement. I have seen & heard many problems with this mototor.
Ie. Sumping, oil pump, oil pan, ect. I'm now starting to stress about buying this 2021 low rider 😖.. Ps. I would realy appreciate your imput into this matter. This is my first M8 . I also have a 1982 1340 Sturgis.
Cheers from Down Under Australia..🇦🇺🇦🇺
Looks like there was sumping wrong with that M8
hahahahaha
How do you fix “over lubricating” cylinders?
reduce the sumping...keeping it from splashing up on the cyls.
Been watching your videos,there great and it would seem these engines are well crap ?
Great video Kevin, the screaming eagle head bolts are advertised as being reusable, I have my doubts. If they look okay what would you advise?
Very cool, the blue & labelled plates for bolts & such to fit in the proper sequence. I thought about building a bike using the 124 engine but of S&S make. Seems the Milwaukee 8 has a lot of problems. Or, are they the same engine with different names on the thing? Any suggestions?
I’m subscribed
Im thinking after watching this video that I should just purchase a complete long block engine so I know all my issues or potential issues are solved. Im a huge fan of S&S but any ideas if my thinking is solid? Or should I look at other options? Thanks... great video.
What Year is this motor? Has Harley Addressed and Solved the sumping issues in the M8 107. I have a 2020 and with all the sumping issue talks on line, has me concerned for the longevity of my motor.
2020 with 3000 miles. be sure to catch part 2...it explains what happened.
@@KevinBaxter I’ve got a 2018 road glide and I’m concerned as well
What did you get on the cylinder and leak down test? Also can you film that part on a future video?
That carbon build up on those pistons is unreal.
That really isnt too bad...have seen FAR worse.
Will you still get ok reading on oil pressure when you have oil sumping going on?
in most cases yes.
@16:00 you lose me. Chicken or the egg? Overlubrication caused the cylinder to glaze, which caused leakdown and crank pressure. But sumping caused the overlubrication? Is the glazing built up over the crosshatch, or worn away crosshatch essentially polishing the wall? Seems like you're saying one caused the other, but what precipitated all of it?
it was stated in the video...from new, a stuck piston oiler fed more oil in the case than the stock pump could keep up with which adversely affected seating of the rings. once that was compromised, he had excessive crankcase pressure...more than the stock or aftermarket pump could handle.
@@KevinBaxter It clicked when I watched part 3. Can you explain "stuck oiler" in part 4?
See the sumping, assuming next video will explain why?
i touched on it here. part 2 will explain more tonight.
Do M8 engines sump like this stock? or only on modified engines?
Mine was puking oil from mile 10 at stock
some do....yes sir.
So, do people make their rings wear causing engines to sump by allowing the engine to run at too low an rpm under load or are too infrequent oil changes combined with “spirited” riding habits wearing the rings first? Here in the South even normal riding conditions during prolonged rides are going to cause engine temps to skyrocket due to the increased humidity which will cause blow-by and ring wear, no? Ring wear and blow-by seem to be the two causative factors leading to “sumping” or is there more to the story?
I took her off the dealer lot and broke her in best I could. It did blow oil out of the crankcase breather from day one.. engine was never lugged.. after break in... it was ridden very hard..
So even after a Fueling cam plate and oil pump, there was still pretty bad sumping? What is causing this Kevin? I thought the new designed oil pump on the sump side was supposed to take care of this? Got my bike in the shop right now getting a new oil pump and a mild cam install, keeping the Harley cam plate because I was advised the redesigned Harley pump was a good piece, this on my 2017 CVO Ultra 114 motor. Bad advice Kevin?
I really like watching your tear down videos, but now I am wondering why anyone would want to buy a Harley. Just how dependable is the M-8 engine or any Harley engine? I love the style of Harley bikes but I don't want to have to do upgrades or all kinds of extensive maintenance just to ride one.
What would be too much oil in the sump?
Is Harley Davison fixing this issue and is there a service bulletin
What year m8 motors are good ? Is the Softail motor all good ?
19 and later models were improved but there is still an inherent issue. i will cover in more detail tonight.
Thanks
i bought a used 2018 fatboy with a m8 114 and has a lot of blowby i did the trans cover vent and is keeping oil from going in throttle body and bought a ss 576 cam and oil pump and will be tearing into it in a week crossing my fingers that the crank runout is in spec or ill have to tear it all down and send the crank out .
after watching this i might as well get a big bore kit so i can start new .
how can they sell bikes with trash engines only 5 yrs old
i was wondering where i can get the bolt holder for the parts to put the bolts back into the right place when putting back together don’t know what it is call i see that it is blue
If you were to add a SS or fueling camplate and oil pump would this remove excess oil in your engine case if in fact the oil pump was the issue of sumping ?
So how did the oil get into the intake manifold? From the head breather bolts routed into air breather?
Is that top carbon buildup normal? Have it on mine to and would love to clean it out somehow without taking it all apart. Let me know, thanks.
not unusual and not severe at all. because of his issue...it would only get worse.
@@KevinBaxter Gotcha. Is there any safe way to clean it like using seafoam spray into the throttle body?
How many miles did he have on that engine? This is making me nervous. I have oil splatter on my right bag, coming from the intake. I feel the heat and we haven’t hit the warm months yet. 😬 When this come in for warranty work caused by sumping, does Harley or S&S want you to send the computer info from the bike? Specifically, the speeds it’s been running?
I’m riding a new 2020 SGS with a Stage 4 kit. Why is it that after an engine builder gets there hands on these big kits, they are having problems? What is an engine builder doing different than the H-D mechanics?
Correction: I’m riding a new 2020 SGS with a Stage 4 kit and 2k miles. Why is it that after an engine builder gets there hands on these big kits, they are not having problems? What is an engine builder doing different than the H-D mechanics?
Its a 2020 with 3,000 miles
This is a complex answer. I wont say that HD dealer mechanics dont have the same or similar issues....they do. Much of what you are referring to are aftermarket shops not being bound by the limitation of the MC. That said...many, many, riders primary goal to to squeeze as much power out of one of these as possible to get an impressive dyno sheet. That puts shops in the position of building to the ragged edge of reliability. Also...many want this work done at the lowest price possible. Mixing those often results in less than desirable results in the longevity and reliability arenas. We will not compromise reliability and longevity for performance. Also...keep in mind...many of these problems also occur on bone stock motorcycles with zero modifications. With proper build practices, and excellent components, the chances of having issues are reduced exponentially.
I have a M8 107 5500mi on it bone stock. what shall I do to prevent sumping?
I just installed an S&S 465 cam, pump, and cam plate on my M8, 107. When I accelerate, oil blows from the top of all four pushrod tubes. Could this be caused by sumping?
I’m looking at a 2019 street bob with the 107.
Was this issue fixed in that year?
Can over filling of oil cause sumping?