Bolt size for flywheel removal? Force 120 L Drive Prestolite

brandonv

Seaman Apprentice
Joined
Aug 26, 2007
Messages
37
I've got a 3 prong puller, but I'm not sure what size bolts are required. Anyone happen to know?
 

baxtr

Petty Officer 1st Class
Joined
Jul 16, 2006
Messages
387
Re: Bolt size for flywheel removal? Force 120 L Drive Prestolite

Not sure on the size, but when I pulled mine, I found some that fit but as I tightened up the puller, they stripped right out. I used a harmonic balancer puller which came with bigger bolts so I just CAREFULLY drilled out the 3 on the flywheel and tapped them to the bigger size.
 

bertthedefender

Seaman Apprentice
Joined
Aug 12, 2007
Messages
36
Re: Bolt size for flywheel removal? Force 120 L Drive Prestolite

If they're the same as on a 70hp outboard they'll be 1/4" UNC.

But then, its a 120 so they might not be... :p

I had real trouble buying them over here. Most DIY shops only stock metric, and specialist suppliers want you to buy a bag of 100... In the end I managed to get 3 bolts from a classic MG car dealer!
 
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