Cub Eng. rings

darock · Aug 4, 2009

Can you put new piston rings in a Cub without pulling the engine???

Jeff Z. · Aug 4, 2009

I never did a ring job on a Cub but you should be able to just remove the oil pan and head and get to work.

gene bender · Aug 4, 2009

I didnt have any problems pull the head and pan.

james rumph · Aug 4, 2009

Yes you can, no problem.

darock · Aug 4, 2009

Thank's guys

El Toro · Aug 4, 2009

When you get the pistons out you should push your new ring in the cylinder and measure the ring gap.
The compression rings should be between .007-.017". The old one piece oil ring is .007-.015".
They're probably now using the 3 piece set with 2 rails and an expander. You need to use a ridge reamer to remove the ridge at the top of the cylinder so you don't break a piston. I would use a glaze breaker on the cylider walls too. I would prime that oil system before you make a start to make sure you have oil pressure. If that block is sludged up I would pull the engine and take a look at that oil pump & have the block cleaned. You probably should have the crankshaft measured for wear. Hal

liteumup85 · Aug 6, 2009

what the torqe on the head bolts on a cub c60 engine? your help would be greatly appreciated.

screwstick · Aug 6, 2009

Head bolt torqe is 45-50lbs, less if you put anti-sieze or sealant on them.
C-60 manual here: http://www.cleancomputes.com/Cub/Blue Ribbon Service Manuals/GSS-1007 Engine/GSS-1007 Engine.htm

Cub Eng. rings

darock

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Jeff Z.

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gene bender

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james rumph

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darock

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El Toro

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liteumup85

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screwstick

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