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Tractor Talk Discussion Forum

Piston ring end gap on diesel???????????

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Gary Rose

07-09-2007 08:14:24




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What the piston end gap suppost to be? This for leyland 498 diesel. Is there a generic standard gap? What is it? Thanks Gary




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Lumpy

07-09-2007 10:11:58




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 Re: Piston ring end gap on diesel??????????? in reply to Gary Rose, 07-09-2007 08:14:24  
Bob is right. Basically, if your bore diameter is 4" then your ring end gap should be .012 -.016. Anything in between is good enough.



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Bob

07-09-2007 15:30:50




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 Re: Piston ring end gap on diesel??????????? in reply to Lumpy, 07-09-2007 10:11:58  
I should have added, if the bore is "used", ring clearance must be measured at the "tightest" part of the bore, in the ring travel area, to avoid having too little clearance, with disasterous results.



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Bob

07-09-2007 08:22:26




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 Re: Piston ring end gap on diesel??????????? in reply to Gary Rose, 07-09-2007 08:14:24  
A "generic rule of thumb" for piston ring gap is .003" of ring gap per 1" of bore diameter.



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