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Henry Schmidt Henry Schmidt is online now
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Join Date: Apr 2004
Location: Fallbrook, Ca. 92028
Posts: 14,224
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Quote:
Originally Posted by gtc View Post
Since it doesn't seem to be covered in Wayne's book, how and when do you apply sealant to the cylinder base gaskets? I don't see how it would be possible to apply the sealant, get the heads and cam towers on, then torque the head studs all in 30 minutes (curing time for 1211)

FWIW, this is on my 3.2 with .5mm bare copper .5mm gaskets.
I only recommend 1211 in certain applications.
The best product we've found for cylinder bases with copper gaskets is Curil T. It never hardens so assembly time becomes a moot point.


As for the comment by our resident antagonist: We use Dow 55 on all case o-rings (chamfer or not) with exceptional, long term results.

Edit: we actually use Dow 55 on every o-ring during the air-cooled 911 engine assembly not just case through bolts. It works exceptionally well on oil return tubes, cam joint rings, RSR rocker shaft seals, cooler seals as well as all rotating surfaces within seal.
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Last edited by Henry Schmidt; 03-16-2015 at 11:01 AM..
Old 03-16-2015, 10:26 AM
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