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Discussion Starter · #1 ·
I am new to this forum and look forward to enjoying it alot. I do have a question to begin with. I am currently working on a friends craftsman mower, that he has hit somthing very hard with. In the past he had the flywheel key replaced. After dis-assembly, I found that the key was intact but mis-shaped abit. I installed a New key but it still acts like it is out of time. Is it possible that he might have spun the cam or other internal parts.:confused:
 

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Welcome to the site!

It sounds like after whatever he hit, it may have tweaked the crankshaft slightly.
 

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Welcome to MLMF, antlerdancer!

After you replaced the shear key...did it run, or try and run? Does it backfire through the carburetor?

If you have a dial indicator you might try and see if the flywheel has run-out. You can do this with a cordless (or corded) hand drill and socket to fit the flywheel bolt. If the dial indicator has more that .015"-.020"- then Austen may be correct and your friend might have bent the crankshaft enough to permanently disturb the timing...
 

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Discussion Starter · #5 ·
Thanks for the replys. I checked the crank with my homemade dial indicator (a nail and a magnet) and it appears to be true. What I did find is that there is 3/32in. of play in the flywheel due to a widend keyway in the flywheel.Am I correct to assume that this is the culprit? Is there a way to advance or retard the timing with this,or is it a lost cause and needs to be replaced. Again,THANKS for the help.
 

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I think you're right about too much play. I'm thinking, other than remove and replace the flywheel and guessing the best spot, you might be much better off finding a good replacement flywheel.

The flywheel is on a I.D. taper, right?
 

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Discussion Starter · #7 ·
Thanks,Mark,for your input.After talking to the owner of said machine,and looking at the condition of the deck,the owner decided to scrap the machine.:mad: Looks like I have some more spare parts.:) Thank again.
 
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