Flywheel wobbling

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nccatfisher
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Flywheel wobbling

Post by nccatfisher »

Can you post a pic of the top side of that flywheel?

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RaisedByWolves
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Location: Bucks county PA.

Flywheel wobbling

Post by RaisedByWolves »

Smutty wrote:
21 May 2020, 19:16
#-o
Image


Time for a new flywheel.


Using a 3 jaw puller on that flywheel killed it, it takes a tremendous amount of force to pull apart that taper.

And as mentioned above, no grease on locking tapers.
Sailbad the Sinner

nccatfisher
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Flywheel wobbling

Post by nccatfisher »

Nevermind, I don't need a pic of the top of the flywheel, I froze a shot of it on the video.

I may be wrong but I think I know what has happened. I think you have to remove that starter assembly from the top of the flywheel and use a crows foot puller to remove that flywheel. I am guessing you used a conventional puller and pulled from the sides of the flywheel. If so you have inadvertently unseated that pressed in dampener. Todd can confirm but I believe that is the issue.

Smutty
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Joined: 15 May 2020, 03:42

Flywheel wobbling

Post by Smutty »

nccatfisher wrote:
21 May 2020, 21:20
Nevermind, I don't need a pic of the top of the flywheel, I froze a shot of it on the video.

I may be wrong but I think I know what has happened. I think you have to remove that starter assembly from the top of the flywheel and use a crows foot puller to remove that flywheel. I am guessing you used a conventional puller and pulled from the sides of the flywheel. If so you have inadvertently unseated that pressed in dampener. Todd can confirm but I believe that is the issue.
Tomorrow I’ll get a better picture for you but someone did some work to this engine and messed a bunch of stuff up I got it from my sisters house it’s been sittin idk for how long but I fixed it up pretty good the flywheel is probably the only thing I need to fix left atleast I hope so but when ever I removed I just grabbed a small pry bar and put it barley underneath where their was no moving parts and put the nut flush with the shaft while slightly putting pressure on it I tapped on the nut after about 3 taps it came up and I slipped it up and I firs show a photo of what everything looked like before I cleaned I knew something was messed up shaving everywhere and their was practically no key left a piece of it even pierced the little grommet or seal on the shaft
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Smutty
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Flywheel wobbling

Post by Smutty »

RaisedByWolves wrote:
21 May 2020, 21:15
Smutty wrote:
21 May 2020, 19:16
#-o
Image


Time for a new flywheel.


Using a 3 jaw puller on that flywheel killed it, it takes a tremendous amount of force to pull apart that taper.

And as mentioned above, no grease on locking tapers.
Yea I’m afraid it’s the flywheel too I’m been looking for a used one somewhere cause for 800-900$ I’ll just go buy another motor instead of a new flywheel and please explain when you say pull apart the taper I don’t know a whole lot bout flywheel

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wmk0002
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Flywheel wobbling

Post by wmk0002 »

I think when he says new flywheel he means a used one off a parts motor. There on tons of used parts for these motors on Ebay and other places that are in great shape. So many of these still kicking that the parts demand is high so people strip down and part out perfectly running motors because they can make more money that way vs selling a running motor. I actually may have a flywheel you need myself. I can look later this afternoon when I quit "working from home" for the day.
2016 Alumacraft 1648 NCS - 1992 Johnson 9.9 HP Tiller
https://www.tinboats.net/forum/viewtopic ... 21&t=40764

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RaisedByWolves
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Location: Bucks county PA.

Flywheel wobbling

Post by RaisedByWolves »

Smutty wrote:
21 May 2020, 23:02

Yea I’m afraid it’s the flywheel too I’m been looking for a used one somewhere cause for 800-900$ I’ll just go buy another motor instead of a new flywheel and please explain when you say pull apart the taper I don’t know a whole lot bout flywheel
The portion of the crankshaft where the key way is cut is a certain type of taped called a locking taper. Basically once torqued down The two mating tapers align everything and lock together.

With the way that key looks I would find a new key and carefully reseat everything and see if things improve.

it kinda looks like it got trapped and crushed at one time.

Could be the cause of you wobbles.
Sailbad the Sinner

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RaisedByWolves
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Location: Bucks county PA.

Flywheel wobbling

Post by RaisedByWolves »

Looking at the pics again(on I pone) it looks like you did not have the flywheel aligned and sheared the key forcing it down into the seal.

This could be good or bad or terrible. #-o

Good, you need to replace the key and everything else is OKish.

Bad, you wiped out the upper seal which is cheap but a pita to replace.

Bad, you wiped out the seal, your flywheel and some of your ignition.

Lots of metal and magnet pieces stuck all over.

Pick that piece of key out of the top seal, clean out all of the metal/magnet slivers with compressed air and put in a new key, carefully aligning the key and flywheel when reassembling and see what’s what.
Sailbad the Sinner

Smutty
Posts: 15
Joined: 15 May 2020, 03:42

Flywheel wobbling

Post by Smutty »

RaisedByWolves wrote:
22 May 2020, 09:27
Looking at the pics again(on I pone) it looks like you did not have the flywheel aligned and sheared the key forcing it down into the seal.

This could be good or bad or terrible. #-o

Good, you need to replace the key and everything else is OKish.

Bad, you wiped out the upper seal which is cheap but a pita to replace.

Bad, you wiped out the seal, your flywheel and some of your ignition.

Lots of metal and magnet pieces stuck all over.

Pick that piece of key out of the top seal, clean out all of the metal/magnet slivers with compressed air and put in a new key, carefully aligning the key and flywheel when reassembling and see what’s what.
Yea I picked the motor up at my sisters house it’s been spitting idk for how long that’s what it looked like when I pulled it off I cleaned everything on it nice and carefully their with a lil silk cloth and quetip And pulled the piece out that seal and I still have good compression and everything after that I pulled the timing base off and got a metal grinding compound to take all the groves off I put it on without the key and spun it for a few minutes same direction I did it I think 2 times stuck a new key on and Slid the flywheel to check make sure everything fitted properly then put the timingbase back on and slowly put the flywheel on and torqued it to 70 foot pounds the video is what it was doin after all that :/

Smutty
Posts: 15
Joined: 15 May 2020, 03:42

Flywheel wobbling

Post by Smutty »

RaisedByWolves wrote:
22 May 2020, 09:17
Smutty wrote:
21 May 2020, 23:02

Yea I’m afraid it’s the flywheel too I’m been looking for a used one somewhere cause for 800-900$ I’ll just go buy another motor instead of a new flywheel and please explain when you say pull apart the taper I don’t know a whole lot bout flywheel
The portion of the crankshaft where the key way is cut is a certain type of taped called a locking taper. Basically once torqued down The two mating tapers align everything and lock together.

With the way that key looks I would find a new key and carefully reseat everything and see if things improve.

it kinda looks like it got trapped and crushed at one time.

Could be the cause of you wobbles.
Yea I picked the motor up at my sisters house it’s been spitting idk for how long that’s what it looked like when I pulled it off I cleaned everything on it nice and carefully their with a lil silk cloth and quetip And pulled the piece out that seal and I still have good compression and everything after that I pulled the timing base off and got a metal grinding compound to take all the groves off I put it on without the key and spun it for a few minutes same direction I did it I think 2 times stuck a new key on and Slid the flywheel to check make sure everything fitted properly then put the timingbase back on and slowly put the flywheel on and torqued it to 70 foot pounds the video is what it was doin after all that :/

Smutty
Posts: 15
Joined: 15 May 2020, 03:42

Flywheel wobbling

Post by Smutty »

wmk0002 wrote:
22 May 2020, 09:14
I think when he says new flywheel he means a used one off a parts motor. There on tons of used parts for these motors on Ebay and other places that are in great shape. So many of these still kicking that the parts demand is high so people strip down and part out perfectly running motors because they can make more money that way vs selling a running motor. I actually may have a flywheel you need myself. I can look later this afternoon when I quit "working from home" for the day.
Well if you don’t mind checking when you get the chance it would be very appreciated

muddywaders
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Joined: 01 Jan 2014, 15:24
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Flywheel wobbling

Post by muddywaders »

I suspect that the flywheel may have rotated during installation due to the crankshaft being lubricated.When torqueing the new flywheel it would be wise to immobilize the flywheel.
Your motor being the lightest 25 is very sought after by flats fishermen and will fetch a good price if you ever choose to upgrade. m.w.

MrGiggles
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Location: Springfield, MO

Flywheel wobbling

Post by MrGiggles »

Going by your photos of the initial inspection, I would say somebody in the past has had it apart and didn't torque it properly, and the flywheel has spun on the crank, and the mating surfaces are damaged/worn away.

I would grab a used flywheel, a new key, and clean everything up really well, see if it stays tight and runs true.

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wmk0002
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Location: Cullman, Alabama

Flywheel wobbling

Post by wmk0002 »

Smutty wrote:
22 May 2020, 10:45
wmk0002 wrote:
22 May 2020, 09:14
I think when he says new flywheel he means a used one off a parts motor. There on tons of used parts for these motors on Ebay and other places that are in great shape. So many of these still kicking that the parts demand is high so people strip down and part out perfectly running motors because they can make more money that way vs selling a running motor. I actually may have a flywheel you need myself. I can look later this afternoon when I quit "working from home" for the day.
Well if you don’t mind checking when you get the chance it would be very appreciated
I looked and don't have one. Thought I did, but the few I have are all OMCs.
2016 Alumacraft 1648 NCS - 1992 Johnson 9.9 HP Tiller
https://www.tinboats.net/forum/viewtopic ... 21&t=40764

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