<VV> Rear Engine Housing Install

FrankDuVal corvairduval at cox.net
Sat Oct 14 21:48:37 EDT 2017

Many opinions!

Do not use a lot of RTV anywhere. Especially on that rear housing, where 
the excess will go through the oil system until it clogs a small 
passage!  Also oil seems to unstick many versions of RTV, letting it 
weep anyway if not properly cured. When I applied it to paper gaskets, I 
used my fingers to wipe it along the gasket surface, so there was no 
excess RTV applied to squeeze out.

I like Permatex High Tack for these paper gaskets. People on the west 
coast like Gasgacinch for them. These products are a contact like 
cement, and can be applied very thinly (although you will fight 
"threads" of this tacky stuff) so there will be no excess to get in 
wrong places. I also used spray Copper Coat for paper gaskets with 
success.  Same idea, spray and let dry, no excess adhesive to get in 
wrong places. Sometimes hard to spray the engine or engine part surface 
without overspray.

Old Indian Head Gasket Shellac works, but is rough to get off later!

Hope this helps.

Frank DuVal

On 10/14/2017 7:35 PM, Arlette Pat & Carl Kelsen via VirtualVairs wrote:
> G’day everyone,
> I am about to re-assemble and re-install the following components to our Corvairs engine:
> 1/ Alternator (Del cotron) adapter.
> 2/ Rear Engine Housing.
> Everything is spotlessly clean and the flat adjoining surfaces are clean, dry and oil free. I am keen to take every possible step to avoid even minor oil leaks and hopefully I will end up with a Corvair engine will no oil leaks. Time will tell!!!
> Anyway I wondered what everyone’s view is, when it comes to using or maybe not using gasket sealants? Specifically my questions are:
> 1/ Should I use gasket sealant or not?
> 2/ If I should use gasket sealant, then what is considered to be the best sealant for joining flat aluminium surfaces on Chevrolet Corvair air cooled engines?
> So far I have attempted to take great care with sealing our cars engine against even the most minor oil leak, and very much want to install our rear housing using the best method and sealant available.
> Very keen to hear opinions on this issue.
> Regards from Australia ‘down under’
> Carl Kelsen
> 1965 RHD Chevrolet Corvair Monza convertible
> Melbourne, Victoria, Australia
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