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Posted: Tue Apr 03, 2007 1:34 pm
by cannondale27
I have seen a few castiron liners with incorrect groove depths.Never saw a defective aluminum one but I bet they are out there.Some 98mm sleeves have different sizes I believe.Anyway if your liner uses stock x-ring and o-ring this is sizes.All are in inch.
Posted: Tue Apr 03, 2007 3:25 pm
by Easy E
Have you found the differences enough to cause sealing issues?
Posted: Tue Apr 03, 2007 7:59 pm
by cannondale27
If groove depth is incorrect it cracks the liner.
Posted: Wed Apr 04, 2007 1:59 pm
by Easy E
Ahh, gotchya. So the the grooves are too deep creating a thin spot in the liner....
Posted: Wed Apr 04, 2007 4:02 pm
by NRath
Nice job on the graphic, 27! Good info, too.
Posted: Wed Apr 04, 2007 8:08 pm
by cannondale27
Easy E the castones that crack the groove is too shallow.Usually there is about a +.003-.000 tolerance on depth of o-ring groove.If it is too shallow o-ring doesnt have any where to squeeze to when headbolts are torqued.Cracks liner.Good indicator of a shallow one is it wont have radius on thee top corners of groove.
Posted: Wed Apr 04, 2007 8:26 pm
by wistech
Was that the issue with rogers ATK?