Crank case to block studs

[Ian Williams]

I see Alan, as I said I was also concerned about introducing something soft into the equation however I respected Rory's early experiences and decided to try them for myself. All I can add to this is that on the engines I have built with silicone base gaskets I am not aware of any loosening of the nuts and some have now done reasonable mileages. I guess the jury is still out on longterm effectiveness but so far they are more oil tight after a few thousand miles than gluing the joint and with no apparent problems to date. I should add I am meticulous about the case faces being true and absolutely spotlessly clean, these points are vital to success which ever method of sealing the joint one uses in my opinion.