Gasket sealer to use on petrol tank sender?

[Keith Scarfe]

Has anyone fitted a new petrol tank sender recently. If so what sealing compound did you use. Most things I have read so far say 'Hylomar blue' is the one to use. When I did this originally (in the 1980's) I remember using some sort of red goo which was excellent and never leaked but I have obviously forgotten what it was called. Anyone have any good suggestions of what I should try to find these days.
Thanks.
Keith.

[elanner]

Have you checked this thread?

lotus-carbs-f40/tank-sender-sealing-t30071.html

Nick

[Keith Scarfe]

Yes I went through that one and someone mentioned Hylomar but I couldn't sus what Alex ended up using. It was more about using the rivnuts. Anyway I think Hylomar is the way to go. I just wondered if anyone has used something else.
Thanks.

[prezoom]

It might have been me. I sealed my sending unit on my S2 with Hylomar almost 10 years ago, and it is still preventing any fuel leaks. You have to seal the threads of the retaining screws as well, because they extend into the tank and fuel can leak around the threads. Shifting gears a little, the reason for removing the fuel sender in the first place, was to adjust the float level. Being more concerned with how much fuel was left in the tank, before the fuel pickup would no longer siphon fuel, I bent the wire to the float to have the gauge show actual empty when the needle was in the center of the last white mark. The tank had been removed and placed on a stand next to the car, blocked in the same orientation as when the tank was in the car. Extending the fuel gauge wires to the tank and using an electric fuel pump, I ran the pump until it would no longer pull fuel. With the fuel at that low level, I was able to remove the sending unit and make adjustments to the float, by watching the fuel gauge in the dash. The gauge doesn't read completely full, but I am not worried how full the tank is, but rather how empty the tanks is.

[Elanconvert]

I remember using some sort of red goo which was excellent and never leaked but I have obviously forgotten what it was called. Anyone have any good suggestions of what I should try to find these days.
Thanks.
Keith.

I expect it was red Hermetite?

i have used this on sender gaskets, but had to be careful......if you use too much, it can squeeze out into little globules which detach and can block pipes etc.......

fred

[TroonSprint]

I used lashings of Wellseal on the tank unit. Hasn't leaked so far...

Mike

[StressCraxx]

I used Loctite Permatex No.2 sealant. I put it on both sides of the gasket and on all of the screw threads. It is impervious to gasoline and ethanol. It requires isopropyl alcohol to clean up, so wear rubber gloves. I installed the sender when I replaced the tank with new. No leaks, no gas odor in the boot.

http://www.permatex.com/documents/TDS/automotive/80016.pdf

[posulliv]

I've used EZ Turn Lubricant. My issue was principally leakage around the fastener threads on a new tank, and this product solved it.

EZ Turn is available from Aircraft Spruce and other aviation supply houses in the States and perhaps elsewhere.

Here's a link:

http://www.aircraftspruce.com/catalog/c ... rnlube.php

No interest in the company, etc.

[Keith Scarfe]

Just to follow up on this after using the standard blue hylomar and making sure all the screw threads were coated, today was my first drive out and thus fill up with petrol. All sealed well no sign (smell) of any leaks. Will see how it lasts over time.

[Grizzly]

I used a dry cork gasket / loctite thread sealer on the screws on my 2 seater and it doesn't leak even when fully filled.

I was always told to fit them dry. When i've removed things like cam covers that have been done that way the gasket is often stuck solid. Maybe the wrong way to do it but i've had good success over the years (as long as the two surfaces are clean and oil/Moisture free).