60 Hp Johnson. Prop Test Run. THIS OLD OUTBOARD
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- Опубликовано: 29 дек 2021
- It's This Old Outboard. More, Speed - Props & RPM's! Test Run the SS/Brass Prop now that the Casting Deck is partially removed. Also Test Run the New
Solas 13 x 19 Al. Prop. And Why The Original Prop Outperformed the Others!
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The pitch is what you are calling the rake.The pitch size is the distance the prop and boat travels per revolution.
The smaller the pitch the more revs you get,but the less top speed.The bigger the pitch,the less revs you get,but more top speed and the slower it gets on the plane.Too large a pitch,and you won't reach top revs (wot)and the boat might struggle to plane.If you liken it to a car gearbox,the smaller the pitch,the lower the gear.
My choice would be to get the the stainless prop re pitched.(they twist the blades to give more pitch,so more distance per revolution.The weight of the prop doesn't slow your boat down,it just makes the prop stronger and less flexible.
Hey Stan. Thanks for tuning in. No, I know what pitch is. The Rake is something totally different. Side by side both props were 19 pitch but the original prop had much more rake. You can physically see it. The rake is the degrees the prop blade leans back, or negative rake which most props are. 0 rake the blade is straight up and down and positive rake its leaning forward towards the boat. The more negative rake the higher the boat is out of the water at higher speeds. Less boat in the water the faster it goes! I've got another SS prop, but its only 17 pitch. It was 13 3/8 diameter, but it's been ground down to 12 diameter. But it was hitting 6200 rpm's but only 34 mph. I'm gonna try it again now that the heavy casting deck is out. I just want the motor in the proper range. So once I start adding some weight back in, it should come down in rpm's. I'm okay with 30+ mph but 38+ was much more fun! Hahaha Thanks again & Stay tuned !
Nice old 1969, 6hp Fisherman. A little beat up though. Mine's a '70 in mint shape. Had it since I was 13 in '73
Wow. Cool! Thanks again. Stay tuned for the next episode !
You must have seen the doctor finally great job keeping on watching the real life saga 👍🏻
Hahaha. Not yet. Thanks again !
That stainless prop put your rpms right where they should be once you trimmed it up
Hey. Thanks for tuning in. Yes because I've been taking all the weight out of the boat. After I put everything back in it will change. Stay tuned for the next episode !
Get the hand grinder out and customize it like the old one. You know, a little “off the top.” Knew an old timer long time ago that would aluminum weld them up and grind the blades back in using a template. Looked brand new and equal when he was done. A real craftsman. He was deaf so I guess he had nothing better to do. While you’re doing that, I’m gonna go to the outboard store and ask for a “do stickey” and see what they give me…lol…great video! Have a happy new year!
Hahaha. Thanks again & Stay tuned !
Stacking the symptoms to diagnose the problem.
When I got this skiff it had an aluminum 19 pitch on it and two spares on the deck. A stainless 17 pitch and a aluminum 17 pitch. With everyone saying "use the stainless they're better" not knowing or caring the pitch. I did switch to it, gaining mph and rpm. with a fully loaded boat, trolling setup, compared to the empty with the 19. One of these days I'll put on the aluminum 17 to see if there's even an actual difference between stainless and aluminum as everyone says-kind of busy with the Key West boat right now though.
Hey. Thanks again for tuning in. Yeah you will feel the difference. Its much smoother! Stay tuned !
Not Arguing HERE, but just how I see it from my experiences.
RPM's is just that, if your running your motor at 5200 rpms then everything will turn the same speed after gear reduction on the prop shaft if everything is in good working order, so if the new prop we'll say turns at 4000 rpms with the motor turning 5200rpms then every prop will turn the same 4000rpms at 5200rpms on the engine.
Pitch is pitch unless the measurements are off or misstated by the manufacturer.
If you think about the old prop being wore down not only have you lost face area for pushing water but you may have lost a small amount of pitch on the prop if the tops and bottoms of the blades have been worn down.
I do agree that weight or mass will affect rpms but only the amount of time it takes to get to the same 5200rpms. If you couldn't obtain that 5200rpms then yes you would be running slower.
My experience is with smaller motors 40hp and under and I have found that bigger is not always better and that no 2 props with the same dimensions will ever react or preform the same even from the same manufacturer.
This is just my observations of some 45+ years of being on the water.
Have a Great New Year 🥳🎉🥂and Keep Your Bow Off the Rocks
🚤👍👍
Well Said! Happy New Year !
Hey T O O The rake on a prop is the blade leaning forward or backward. positive rake leaning backwards towards exhaust side will give you lift on transom. When you look at the two props on bench the one on the left has pos rake you look from the side and you can see it leaning towards the exhaust side of prop. I think that’s correct I could be wrong but you get my point basically don’t you JT hope that helps a little 🇺🇸🇺🇸🐠🐟🎣🛥🌴⛱🙏🏻🙏🏻🙏🏻
Hey. You are exactly right! More Rake Baby! Hahaha Nobody ever talks about Rake! Thanks again & Stay tuned for the next episode !
Tiller 9.9 love it
Its a 6hp! Thanks again !
Well, prop fitting starts as a science with diameter, pitch, rake and material (plastic, aluminum or stainless) combinations to deal with but then evolves into an art as you have to contend with boat weight, weight distribution, hull configuration, water density (fresh vs saline) etc... In the end, one has to realize that an outboard is like a car with a one-speed only transmission so you have to decide what performance characteristics you favour: acceleration (water skiing) or top speed (reaching Grill's asap). Take care and be merry !
Hahaha. Yes! Stay tuned for the next episode !
Only if you could find some thick gauge aluminum for your casting deck
Hey. Thanks for tuning in. Yeah every once in a while some sheets of diamond plate show up for sale cheap! I'll have to check craigslist, offerup & marketplace. Thanks again & Stay tuned for the next episode !
Always a cool vid!👍
Hey Doc. Thanks again for tuning in! Stay tuned for the next episode !
I found a prop 13.1/2 x21 for a flats boat deeper pitch more water it move
Hey. Thanks for tuning in. If it's used be sure and measure it. It may not be 13.5 anymore! Thanks again & Stay tuned !
The original looks like a clever cut prop
Hey. Thanks for tuning in. Yes very similar. Are you catching any fish? Thanks again & Stay tuned for the next episode !
Cool 9.9? Tiller can’t wait to see it.
Hey. They are both 6 hp. Lets put bigger carbs on them! Hahaha. See you in the next episode !
🙂 👍🏻👍🏻
Thanks again !
Shave the blades on the new prop. Test the theory. 😜 Just another sunny day in flo-rida.
Hey Art. I was thinking about it. I was also thinking I don't want to screw it up! Hahaha Just my luck! Thanks again & Stay tuned !
I’ve got two do sticky’s for sale! No low ball offers , I know what I got 😬.
Hahahaa! Your comment is going in my new segment, "Best Comments of the Week"! haha or month, I haven't gotton that far yet. Thanks again & Stay tuned for the next episode !
Good explanation of getting the most and best performance from a prop. Where's the shiners. Haha Hey, is there any crawfish in that lake?
Hey. Thanks. I'm sure there is! I should get a couple of traps. Thanks again & Stay tuned for the next episode !
Played a similar game last summer with my 14' smokercraft and 74' merc 20hp - Aside from prop/rpm experiments the most dramatic speed improvement came from removing injection foam from under the flooring { I weighed the foam chunks and totaled 120 lbs} the other very noticeable improvement was I built a jack plate to raise the motor so the cav/vent plate on the motor was just skimming the top of the water on plane - greatly improved the steering and I went from 20 mph to 26! Don't know if that helps but thought I'd share- Incidently I have a 25hp-73" johnson looking for d-21and r-34 jets - Anybody known source to order specific jet sizes?- I noticed you talked changing jet sizes on this 60 - Thanks
Hey Bill. Thanks for watching and commenting. Yeah I wasn't going to do foam under the floor but changed my mind at the last minute. It was free! Hahaha. Jack plates are good! I think you can probably find the jets on marineengine.com if you have a part number or know what outboard they where used on. Ebay will probably be cheaper if they have any. Thanks again & Stay tuned for the next episode !
I woulkd say go buy my numbers below noting thatr you will be able to put whatever , Im thinkin strippler pole, and just run less ptch prop,
rake will be the same in a model like solas 3 i think are the ones i tired, amazon took two i tried t back. kept 14 for spare trolling and skiing prop.
Hey Thanks. I nver thought about sending it back. The lower I go in pitch the slower I go. RPM's are up there though. Thanks again & Stay tuned for the next episode !
Got another 3 cylinder Johnson because my 75hp had a badly scored cylinder. Wondering if the 75hp carbs will make it any faster the motor I just got is a 73 65hp
Hey. Thanks for tuning in. Probably. Go to marineengine.com and look up both years/models and see what the HS jet size is. Shouldn't be much overall difference in the two outboards being that close in years other than the carbs. The throat on the 75 may even be larger and fit better. Curious to know what happens. Let er rip! Thanks again & Stay tuned for the next episode !
one prop is probley a power prop and the other is a speed prop power prop gives you better take off but less top end speed speed prop slower take off better top end speed im sure you probley already knew this just trowing my 2 cents worth in...love yur vids
Hey Chad. Thanks for tuning in. I'm still learning all the time! Thanks again & Stay tuned for the next episode !
We’ve all gotten a good lesson in props from you and these last few prop videos. It’s interesting to see how all the different ones effected your speed and handling. I went with manufacturers recommended “all purpose” props on both of my outboards, but now I’m wondering if I’m missing out on some lost speed!
Yeah. I'm definitely getting an education here. I always went with the all purpose props too. And read that over/under propping will shorten the life of the outboard. I assumed the 13 x 19 was it. I believe the Starcraft was rated for an 80 hp, but that was before it was stripped out. Now I'm back to square one. I hate getting knocked backwards! Stay tuned for the next episode !
Hey This Old Outboard if ya got a second ….. what was going on to make the boat go to the right ? We’re you saying the prop was too deep ? I’m just learning ! Thanks and appreciate your videos !!
Hey. Thanks for tuning in. Yeah if it pulls to the right the motor is to deep and needs to come up. It's from the torque of the prop. If you don't have tilt & trim move the trim pin up a notch. Thanks again & Stay tuned for the next episode !
@@THISOLDOUTBOARD1 thanks for the info always appreciate you ! Yeah I got trim tabs just a 25 Johnson
Great !
Hey. Thanks for tuning in! Stay tuned for the next episode !
Ok this may have been mentioned and I missed it....is it possible that when you first ran it and hit the upper 30s, that it was over reving the motor to perhaps 6000 rpms? I think it would be possible since there was no tach, and now watching the tach you're not over reving it? I don't know, every time I change a prop, there is a calculatable change in speed/rpm/hole shot etc.
Hey Scott. Thanks for watching and commenting. Sure its possible but I guess a this point we may never know. Yes. There also has been a difference in all the props. Thats what this episode is all about. Hahaha. I tend to ramble a bit. If you miss a couple of segments you miss the whole video. I can barely figure out whats going on myself. Hahaha And I made the video! Thanks again & Stay tuned for the next episode !
Have you thought about putting 75 hp jets in it?
You got some? Hahaha When I got these 70hp carbs I thought they were gonna be 64D jets like the 87 70hp I use to work on. That thing was a rocket! Well the jets were only 52D so I didn't gain much over the 46D's that were in the 60 carbs. But it does run much better with the 70hp carbs. Thanks for tuning in & Stay tuned for the next episode !
hey man/ i just got back from my annual Christmas trip tp fort Myers. love Florida.
I think shes doing great. only consideration is maybe, it is for me, that with the gear i want meaning weight, it will basically go the same speed with a 15 or 17 pitch without care for weight. the 17 for me was a mil e an hour slower but sounded so much better than 15 or small pitched props. plus my motor didnt come with airbox at all, so little louder. im looking for one. 14 pitch will pull a skier at 39mph ,6000rpm....
Hey. Okay. Thanks again ! HNY!
36 I would leave it at that, runs great.
Hey Mike. Thanks for tuning in. That would work with a full boat but once I put the weight back in the rpm's will drop. And that's not good for the outboard. I believe they call it lugging the motor. Thanks again & check out the next episode !
I finally looked at those props I have and I think they are for a 150 hp 14-1/4" x 23 pitch
Hey. Thanks. I appreciate it. I think that going to be to big. But thanks again & Happy New Year !
@@THISOLDOUTBOARD1 Happy New you to you too.
Have you tried running with the cover and airbox off to see if it makes a difference?
Hey. Thanks for tuning in. Yes, no issues. Thanks again !
The video you just posted is set to private. Unless thats in purpose
Hey. Yeah I screwed up! Hahaha Just reposted it. Thanks again & Stay tuned !
What year is your 60hp
Hey. Thanks for tuning in. It's a 92 60 with 92 70hp carbs. A little bit bigger high speed jets. Thanks again !
Idling at 9000 hahaha
Hahaha! Stay Tuned!