I have used permatex form a gasket not the rtv type silicone with good results on diesel.

 

The "black one" ? Thats what several people have told me to use...Hows it hold up to the diesel?

 

Form A Gasket #2 or PIG Putty http://www.newpig.com/us/facility-m...ce/patch-and-repair/pig-repair-putties/?cm_mmc=R-_-capt-_-6.0-_-cont+&adpos=1t1

 

Thanks for the info, I dont want it to cure rock hard though. I will one day fix it correctly.

 

Forms gasket #2 works well I have used it on fuel tank gaskets otherwise black rtv holds for a while

 

Diesel Tech here. what I use when the need arises and ONLY in the proper amount...alittle goes along ways. it is called ..right stuff.. and can be purchased in either sensor safe or not either one work well with a diesel fuel and or oil system can be bought at most parts stores. Dale

 

I second the right stuff. I get mine from the local napa. A little goes a long way.

 

No gasket maker I know of works on deteriorated rubber parts. You're just making a bigger mess to clean up later. Replace the grommet and save yourself some hassle.

 

I hate silicone sealer!! Especially when I have to work on something that someone else has "fixed" with it!:realmad::angry:

 

If anything will work, B2 aircraft fuel tank sealant is the stuff.

http://www.aircraftspruce.com/menus/cs/fueltanksealants.html

Clean with solvent, blow dry, scuff sand to get some "tooth", clean again, apply sealant.

It's not bothered by diesel, and is wonderful stuff compared to which RTV is pretty weak.

Anyone who hasn't tried it should buy some to get familiar. Wear disposable gloves, and mix thoroughly. It's quite sticky.

It's been used throughout aviation for decades, and seals "wet wing" fuel systems, canopies, panels. with release is used as panel faying sealant, and I've used it to seal a GM diesel timing chest while deployed to Incirlik when the Turkish motor pool mech went on strike. Works fine with gasoline too.