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Registered
Join Date: Sep 2015
Location: Costa Rica and Pennsylvania U.S.
Posts: 3,301
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reringing Alusil
I have done many motors with new rings in Alusil cylinders.Never had a problem.I have found much less wear with Alusil in higher mileage motors than Nicasil.Last month I took apart an SC with 91,000 miles with broken studs.Measured the ring gaps and they were 0.20mm.New spec is 0.15mm or 0.006 thousandths.Lack of knowledge breeds fear.944 & 928 motors a great example of the Alusil design.Do a RA check on Alusil and that will give you a clue.Less drag from less fricition.Oh no not more power and lower oil temp!Say it is not so!Ciao Fred
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