[NoVa-Corvairs] Fwd: <VV> CO and a oil leak

Bryan Blackwell bryan at skiblack.com
Sun Jul 13 14:33:43 EDT 2008


Given that we are about to do this very task, I thought I'd forward  
along Ken Hand's note on sealing the top cover.  I'm about to do the  
same on the '66.

--Bryan

Begin forwarded message:

>    Well, Here is what I do on the top cover, I use sealer and  
> gaskets. I put
> the sealer on the gasket and/or the part which ever is easier. I  
> also turn
> the washers over on the bolts and use the spring type lock washers.  
> I then
> use the center out torque pattern and only tighten the bolts enough to
> compress the lock washers. I leave this set for as log as I can,  
> Preferably
> 12-24 hrs. Then I go back and retorque all the bolts to spec, again  
> using the
> center out pattern.
>    With this method the steel is allowed to move some and not break  
> the seal.
> And lock washers are cheaper than the "special" top cover bolts and  
> won't
> come loose.
>    If you are wondering what the center out pattern is I will try  
> to explain.
> The "center out" Means to start as near the center or middle of the  
> bolt
> pattern and start tightening bolts. leave the corner bolts loose.  
> Then do the
> ends the same way and finally tighten the four corners. This method  
> can be
> modified to fit anywhere on the engine, even the bellhousing bolts.
>    Ken Hand



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