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putting a 310 into a 770 oliver (flywheel question)

P

PCH

Member
The 310 is rated at 2640RPM, will the flywheel off the 770 rated at 1750 take being spun at 2600RPMs without a problem. Or do I have to find a steel flywheel? Or could a machine shop turn down the 310 flywheel to 13.25 in diameter to match the 770 flywheel? Any ideas welcome, don"t want the flywheel to come apart. Thanks
 
I'm not really answering your question here, but if you decide to go with a steel flywheel I can give you some information. Brian Hitt sells some steel flywheels that bolt right up and use the P.T.O hub drive deal for $700-$800 that only can use the 11" factory style single clutch/pressure plate. Rursch Industries gives you two options, one being a flywheel that like Brian's bolts right up and uses the P.T.O hub deal as well for $800+. Option number two from Rursch though is a different setup. With this option number two you get a steel flywheel with pilot bearing installed, clutch shaft, twin clutch discs, McLeod pressure plate, stands, etc. For them to do this though they had to move the starter ring gear forward for the pressure plate to clear the bell housing so therefore you would need to make a spacer for your starter which is not much trouble. This option number two goes for the $2000-$3000 price range from Rursch Industries. Again, I'm not really answering your question, but some information that might or might not be helpful.
 
I'd say you would be ok with the 770 flywheel. I would have your entire rotating assembly balanced including the flywheel.
 
PCH, I think you will be good with the 770 flywheel, but a 88-880 one would be better because you can use a bigger clutch and p plate. check which ever one you decide to run for cracks. I ran a 88 fly wheel in my 77 for years and ran at 3000+ with no probs. I have since went to a steel one and a blanket for safety. your call, Chuck
 
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