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MG TD TF 1500 - Fuel tank fittings sealant

I have read that permatex aviation gasket maker is recommended for sealing the sending unit. Is there a sealer needed for the fuel line adapter and drain plug? Someone mentioned gasoila. I can't find it locally. Is there a substitute I can find in a NAPA, Pepboys, Lowes, etc? Or can I use the permatex?
Thanks
Mark Butler

According to the producer, Blue Hylomar is petrol resistant. I have used it with excellent results on both cars and motorcycles over the last 40 years. The Hylomar - Rolls Royce connection is a nice thing to think about as well.

I plan to change sweating fuel tank connections on the TF this winter and Hylomar would be my choice if no one else comes up with a caveat,

regards,,

Jan
Jan Kristoffersen

Permatex makes an extreme performance thread sealant compound. Here is the mfg link. Can be purchased at all auto motive parts houses.

http://www.permatex.com/products-2/product-categories/thread-compounds/thread-sealants/permatex-thread-sealant-with-ptfe-detail

Just NEVER use pipe sealing tape in ANY automotive application...ever.
Regards, Tom
tom peterson

I use permetex #2 and it works well
-David
D. Sander

Tom, you might want to read the Permatex info again:
*****
Economical general-purpose fitting sealant. Outperforms tapes and pipe dopes. Seals and resists pressure in air, oil, diesel fuel and hydraulic systems.
*****
Gasoline is not included. Last I knew there were zero sealants that are guaranteed for gasoline. I'm with David. Permatex #2 does a good job on the sending unit. Bud
Bud Krueger

Try Permatex #97 - I've used it with good results and it's available at most auto parts stores (Autozone, O'Reilly, etc.)
Gene Gillam

For what this is worth, I just repainted my tank and car. I reinstalled a new filter/fitting and replaced the drain, both with new fibre washers. No leak after a week with gas in.
I had thought that those red fuel system washers did not need sealant.
Tom
'54 TF
T Norby

...helps to go 'round and round' when tightening all those sender screws... i did about a 1/16th turn on each. Just sayin'
gblawson(gordon- TD27667)

I am with Tom Norby - use new fiber washers. The fittings in the MG fuel systems are all a parallel pipe thread and require a fiber washer at each joint - no thread sealer is needed, nor is it recommended. Make sure that the sealing surface on the two tank bosses are smooth and as parallel to the threads as possible.

As for the sending unit - that is a different animal and I have found that Permatex 2 liberally on the sealing surface of the tank and the sending unit and on the screw threads, then tightening around the circle tightening in steps does the job. Cheers - Dave
David DuBois

Bud, Here we go...regards, Tom

http://www.permatex.com/products-2/product-categories/gasketing/gasket-sealants/permatex-permashield-fuel-resistant-gasket-dressing-flange-sealant-detail
tom peterson

Thanks, Tom. Been looking for such a product. Bud
Bud Krueger

Been using this since time immortal and havent had any failures, cheap too.

http://www.dowson.co.za/products/jointing-compounds/stag-jointing-compound

Graeme
G Evans

Thanks guys. I have the Permashield for the sending unit along with the fiber washers for the plug and fuel line adaptor. The Permashield is a newer product from Permatex. Hopefully it will perform the same as Permatex #2 or better.
Mark Butler

This thread was discussed between 16/11/2013 and 17/11/2013

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