<VV> Gasket/RTV- GEN/FAN & electrical -Arjay Morgan

[Sadek Charles H DLVA]

Billy, Billy,

	Please don't use RTV.  You can make a gasket out of cardboard as you
suggest.  Matter of fact, in many cases, this being one of them, the gaskets
sold new today are much thinner and "harder" or stiffer than the gaskets
sold yesterday.  I have found the rear housing and the Delcotron
adaptor/mount are not flat.  The new gaskets don't do much to seal this area
properly.  Cereal box cardboard is thicker and softer which ought to be
better than current gaskets.

	I strongly suggest you do not use regular RTV, although some do.
There are some RTVs that are modern products and applied to a clean surface,
will often do the gasket-job.  In this particular area, the width of the
sealing surfaces are rather thin, the clamping force is insufficient for
higher oil pressures, and I suspect, too narrow a surface area for proper
sealing at higher oil pressures.  At stock oil pressure levels, a modern RTV
might be suitable.

	I suggest folks really make sure what they are doing when they add
or use RTV.  The stuff flakes everywhere on the inside of surfaces, and
contaminates the oil.

	3M Weatherstrip adhesive makes a good gasket cement using a gasket
plus the adhesive to a clean dry surface = works to 80 psi. at the rear
housing.

	The best product-not cheap-is The RIGHT STUFF by Permatex.  There
are other 'similar' tubes at your FLAPS. They are no good compared to this
stuff-used with a gasket. 

	One drawback of the adhesive and Right Stuff products-you need three
men and a kid to get the parts apart.

All IMHO

Chuck S
YS73

-----Original Message-----
From: Bill Hubbell [mailto:whubbell@cox.net] 
Sent: Thursday, April 22, 2004 9:18 AM
To: Arjay Morgan
Cc: Virtual Vairs
Subject: Re: <VV> (VV) GEN/FAN & electrical -Arjay Morgan

You can make your own gasket out of cereal box cardboard and it will work
just as well as anything the vendors sell.  Another alternative is to just
use Blue RTV and let it set up a bit before applying the part .

Bill Hubbell

----- Original Message ----- 
From: "Arjay Morgan" <n3lkz@yahoo.com>
To: <virtualvairs@corvair.org>
Sent: Thursday, April 22, 2004 12:34 AM
Subject: <VV> (VV) GEN/FAN & electrical -Arjay Morgan


> Fellow Varians:
> A week or so ago I posted to the list the ominous
> GEN/FAN light that appeared while on my way home on a
> dark and lonely road.
>
> Here's an update:
>
> The cluprit is apparently a burned out armature in the
> generator. My generator rebuilder gentleman says it'll
> be over $100 for a new one if he can even find one.
>
> Sitting in a box I have an alternator adapter casting
> and two alternators. Obviously, I've been planning
> ahead. Equally obviously, the cost-benefit equation
> favors switching to alternator power.
>
> The question is this: I'll need a new gasket to mate
> the casting to the engine, cheap, yes, but the
> shipping from either of the vendors will be three
> times the cost of the gasket.
>
> I have a friend who is an aircraft powerplant
> rebuilder and he's offered me some cork gasket
> material from which to make one. Has anyone in the
> group used a cork gasket in this position? Are there
> any issues with the thickness of the cork and the
> length of the fuel pump push rod? How about torque
> specs for the four hold-down bolts when using cork?
> What about leakage?
>
> Unca Lon lists cardboard, better cardboard and nitrile
> in his catalog, but nary a mention of cork. I guess my
> concern is whether this material can stand up to not
> only the heat and the oil, but also the 40 psi or
> thereabouts that it has to bear up to.
>
> Thoughts and advice please before I go to a bit of
> trouble making a gasket out of the wrong stuff.
>
> Thanks,
>
> Arjay Morgan
> CORSA
> 64 Monza convert
>
>
>
>
>
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