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Author Topic:   Sealing a gas tank @ pick up
goodad posted 05-08-2003 05:08 PM ET (US)   Profile for goodad   Send Email to goodad  
Just a thought but..If gas tank isn't leaking but gasket is at pick-up..Have changed the gasket twice with FMT gaskets..Is it possible to seal the area with an epoxy or silicon or?? No other area of tank is leaking..any thoughts appreciated.
JBCornwell posted 05-08-2003 06:55 PM ET (US)     Profile for JBCornwell  Send Email to JBCornwell     
What tank, Goodad?

Red sky at night. . .

Jerry Townsend posted 05-08-2003 09:11 PM ET (US)     Profile for Jerry Townsend  Send Email to Jerry Townsend     
Goodad - I would not use epoxy, but rather some pliable sealant - like Silicon. Epoxy will make disassembly at best, difficult, should you need to undo it for any reason. Silicon or a pliable permatex would work fine. ------ Jerry/Idaho
Dick posted 05-08-2003 09:15 PM ET (US)     Profile for Dick  Send Email to Dick     
Using silicone to seal any fuel related item is not a good idea.
As it is squeezed out when you tighten the fitting some is going to drop into the fuel. Great for plugging up the carbs.
I would use a light coating of the old black Permatex.


goodad posted 05-09-2003 08:44 AM ET (US)     Profile for goodad  Send Email to goodad     
The tank is 63 gal. on a 18' 1985 outrage..All other aspects of the boat are fine..The gaskets sent from FMT is sized right but the wholes don't match up..I have them dumbfounded as we have conversed many times..Have used the permatex but not the old black hard..Dive 1 mentioned using hex screws when he replaced..No one including FMT can figure out why the tank/gasket won't seal..The boat is new to me but the situation seems new to all..I appreciate the help in nailing this down..Seems Whalers in this Pittsburgh, Pennsylvania area are a freak of nature, but I have waited along time for this boat and at a point in time I hope to be able to use it..I appreciate the help..Thanks
Montauk posted 05-09-2003 10:03 AM ET (US)     Profile for Montauk  Send Email to Montauk     
Do not ever use regular silicone sealant on a gas tank!!!! Silicone is degraded by gasoline and will drop into the tank and block the fuel lines. GM RTV sealant can be used with success.

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