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Registered
Join Date: Aug 2006
Location: Surrey, UK
Posts: 76
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964 Piston ring gaps
Hi ,
Does anyone know what the Piston ring gaps readings should be for a MY92 964. I'm fitting some new ring and want to check the ring gaps before fitment. thanks Ian |
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02-26-2007, 11:46 AM
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Registered
Join Date: Aug 2006
Location: Surrey, UK
Posts: 76
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Found it.... for a 964 C2/C4:
Top and bottom compression ring 0.15-0.3mm were limit 0.8mm Oil ring 0.15-0.3mm were limit 1.0mm
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____________________ UK Surrey Coupe 964 MY92 Tiptronic To many toys to list..wife might be reading this ;-) Personal thread: http://forums.pelicanparts.com/911-engine-rebuilding-forum/340187-964-3-6-full-engine-rebuild-over-uk.html |
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02-26-2007, 12:49 PM
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Try not, Do or Do not
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Those specs are correct.
Here's an interesting question. 0.15-0.3mm wear limit 0.8mm. How many engine builders would install a ring with .030" gap? . Yet that is the top limit Porsche says is usable.
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Henry Schmidt SUPERTEC PERFORMANCE Ph: 760-728-3062 Email: supertec1@earthlink.net |
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02-26-2007, 07:52 PM
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Registered
Join Date: Aug 2006
Location: Surrey, UK
Posts: 76
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Henry , is that a limit that is not documented, as it seems very tight to me ..if the spec i have found are correct for a 964.
PS: the full gasket I ordered off you a few months ago will be used very soon on the 964 rebuild.... thanks Ian |
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02-27-2007, 12:46 PM
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Join Date: May 2003
Posts: 3,346
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Last set of "new" Goetz rings I bought were close to the wear limit. I ended up using the old ones as they were better than the new ones.
-Andy
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72 Carrera RS replica, Spec 911 racer |
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02-27-2007, 06:04 PM
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Porsche
Retor 911
Scarab
Riley
