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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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HELP ME PLEASE IM NEW AT THIS

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robert plant

08-24-2006 23:53:37




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im rebuilding a oliver 70 right now i have the engine apart bought new rings and having some trouble getting the pistons back in. not thinking i didnt look to see how the pistons came out i know the order but i was woundering which way the off set goes i also bought a servie manual but it dosnt seem to help much with my problem




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Ken L.

08-25-2006 16:39:11




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 Re: HELP ME PLEASE IM NEW AT THIS in reply to robert plant, 08-24-2006 23:53:37  
It's easy to see which way the offset goes. Look from the bottom of the engine and see which way the center of the crank journal is compared to the center of the sleeve. That will tell you which way the offset of the rod goes.



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RAB

08-25-2006 01:44:39




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 Re: HELP ME PLEASE IM NEW AT THIS in reply to robert plant, 08-24-2006 23:53:37  
Historically, engines were built and marked in a standard way. That way engineers of the day understood the system.
Number one at timing gear end (piston, cylinder, valve, bearing).
Pistons marked at front.
Rods and caps marked on cam shaft side.
Piston rings marked as appropriate, if position or orientation were important.
Manuals usually refer to right and left sides being in relation to where the driver is sitting.
Regards, RAB

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