<VV> (no subject) - RTV and alternatives

[Frank DuVal]

Well I "think" all the RTV sealers we buy have silicone in the chemical 
mix.

Even the GM one:

http://www.sdparts.com/product/12346192/GMRTVSiliconeSealantT330.aspx

But proportions change, dyes change, some afect O2 sensors more than 
others, etc.

Find one you like and stick with it.

FWIW, I like the black color because it looks better than the blue 
squished out of the seams.

Now for oil pan gaskets, like Harry said, make sure the pan is flat.

Do NOT tighten the bolts until they stop turning. Watch for the gasket 
to pooch out at the corners. RTV seems to lubricate the gasket and it 
slides (pooches) out at the corners. I like tacky sealers for these 
cork/rubber gaskets. Such as :

http://www.amazon.com/Permatex-80062-Gasket-Sealant-Brush-Top/dp/B000HBGHB8

I also use this for most paper gaskets now. Although I also like the 
spray copper tacky stuff for paper.

http://www.midwayautosupply.com/showproduct.aspx?productid=14334&affiliateid=10050

I never liked using gorilla snot  ...   I mean 3M yellow weatherstrip 
adhesive (8001) for gaskets, even though 3m recommends it for gaskets. 
So it must be an OK application!

Frank DuVal

Chris & Bill Strickland wrote:

>>As for the RTV, you'll get both postive and negitive comments, but I'll put 
>>a small bead on the pan side only.
>>
>>    
>>
>It might be worth noting, for those of you who may not have noticed, 
>that RTV and Silicone Sealer are not necessarily one and the same -- GM 
>markets a small tube of Black RTV for about $10 that is some pretty high 
>quality stuff and less likely to leak oil than say your standard blue 
>silicone stuff.  I'm not a chemist, I don't know the differences, but I 
>suspect there are some -- if anybody could clarify, that would be great!
>
>Bill Strickland
>
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