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EA81 Piston Ring gap

Posted: Fri Jun 25, 2010 4:39 pm
by Matt
EA81 Piston Ring gap with 40 thou or 1mm oversize pistons what gap does everyone think, gregories says 0.2 to 0.35 and limit 1.5mm. But what should i set it to? Anything above 0.2mm? It was bloody confusing the way it was written.

Side note i hate ACL!!!! i have 1 stuffed piston 1 stuffed set of rings (ripped the rings spacer thing out on the piston and the 2nd compression ring is in like 10 pieces) and 1 stuffed set of Crankshaft bearings all ACL!!! And all under 12 months old!!!!

Thanks
Matt

Posted: Sat Jun 26, 2010 10:37 am
by steptoe
those instructins with rings are usually so many thou per inch accross bore, so if it is 10 thou they say and 3.5 inch bore = 3.5 times ten thou

SEARCH, two years ago maybe I put some detail in here, I was unable to get as tight as spec and my engine machine shop said no worry with the bigger gap - and no problems with the bigger gap

Posted: Sat Jun 26, 2010 11:00 am
by Matt
Yeah i just put them in and the gaps were all bigger then 0.2mm the minimum mentioned. Thanks anyway