Ring Gap

[bigbyrd]

Does anyone know the proper ring gap for a MF diesel piston 3.42 in. in diameter?
Thanks in advance.
bigbyrd

 

[BCinVA]

Don't know that one specifically, but a general rule of thumb for ring gaps is .004 to .005 per inch of bore . So a 3.42 inch bore would yield a top ring gap of .0137 to .0171. With gas engines this gap is increased somewhat for more high performance engines. Also the second ring is usually gapped a bit more than the top ring. This is to prevent trapping any gas that gets by the first ring between the two rings.

 

[bigbyrd]

Thanks for your response BCinVA. Now to find an Iseki parts dealer whose prices do not give me a premature heart attack.
And suggestions?

 

[bigbyrd]

Thanks for your response BCinVA. Now to find an Iseki parts dealer whose prices do not give me a premature heart attack.
And suggestions?

When I was wanting to know the ring gap on a 3.42" Iseki E3CD diesel (Massey Ferguson 1440H) piston, I neglected to mention that it has a turbo. Does that have any effect on ring gap numbers?