Doug,
Still can't figure out if you think Tom's procedure is right or wrong Doug.
WRT RTV use, he states:
" - - a light coating of RTV on the top surface and a bubble of RTV at each
tang interface with the manifold gasket." Seems like this procedure would
still allow penetration by oil. And, btw, gasoline evaporates a lot faster
than oil, so if I had oil in my Holley, the corks would probably stay fat a
lot longer. (Now, if you're wondering just what this has to do with intake
manifold seals, I'm still trying to figure out the relevance of the
carburetor gaskets analogy too.)
Actually, your post raises a lot of questions; like what adhesive would you
recommend if you use the cork gasket? And what's the "etc." in "Cork must
be in contact will oil/gas etc." I try real hard to keep any gasoline or
"etc." from getting inside my engine.
Well, I could go on, but enough of this fun.
Praying in S.D for a miracle in N.Y.,
Bob
At 12:47 PM 10/18/98 -0400, Doug Mallory wrote:
>Cork must be in contact will oil/gas etc. to work and if you coat it with
>RTV it will
>not expand and seal. Think what happened the last time your Holly set
>without gas
>in it for a long time. I have used both with luck but not together. RTV need
>to set before
>final tightening of the assembly and I have had the parts move while waiting
>for it to set.
>3M weather stripping adhesive is great for holding cork in place one side
>only and you can reuse the gaskets. NASCAR uses it to hold lug nuts in
>place.
>
>Doug
>
> -----Original Message-----
>From: Bob Palmer <rpalmer@ames.ucsd.edu>
>To: Doug Mallory <rdmallory@earthling.net>; Tom Hall
><modtiger@engravers.com>
>Cc: tigers@autox.team.net <tigers@autox.team.net>
>Date: Sunday, October 18, 1998 11:58 AM
>Subject: Re: Intake Manifold Gaskets
>
>
>>Doug,
>>
>>Does your post mean you are impugning the veracity of Tom's seemingly
>>authoritative post ( and mine too by implication) Doug?? Or perhaps you
>>just had a reflex reaction to the words "RTV" and "cork" in the same
>>sentence. Now, mind you, I'm no big fan of RTV under any alias, but perhaps
>>you mistook your tube of RTV for a tube of silicone grease the last time
>>you used it. They look a lot alike and I've almost made that mistake a time
>>or two myself. (Not half as bad as trying to brush your teeth at 5:30 a.m.
>>with Preparation H though.)
>>
>>Since we're on the subject of sealants, let me mention the amazing HYLOMAR.
>>It's two most impressive properties are 1) it's blue and 2) it's made in
>>the UK. and, oh yeah, it's also very expensive. Other notable properties
>>are that it never hardens, is impervious to most fuels, and is able to
>>withstand temperatures up to 600F ( I know because I read it on the label).
>>So maybe, just maybe, the only possible improvement on Hall's Full Monty
>>installation would be the substitution of HYLOMAR sealant for the RTV
>>(still using the ape slime or whatever we're calling it today to make sure
>>those little cork suckers stay put.)
>>
>>Sealing away in San Diego,
>>
>>Bob
>>
>>At 08:43 AM 10/18/98 -0400, Doug Mallory wrote:
>>>If you use the cork doglegs DO NOT USE RTV. The cork will
>>>not get enough oil on it to swell and seal. Then it will squirt out
>>>with the slightest pressure. I have had good luck with either choice
>>>but not both.
>>>
>>>Doug
Robert L. Palmer
Dept. of AMES, Univ. of Calif., San Diego
rpalmer@ames.ucsd.edu
rpalmer@cts.com
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