Fuel Sender O Ring Placement

[WDILL]

I need info on the correct position of the fuel sender O ring. The schematic shows it between the sender and lock ring. Some posts discussed ways to keep it from slipping when tightening the lock ring but I also read a post saying the ring goes between the tank and fuel sender, then the lock ring.

[SteveJ]

I used vaseline to hold the o-ring in place.

[kenz240z]

I believe the o ring goes between the tank and the sender. The tank is 'grooved' for the o ring. I've replaced a few and had no issues with keeping the o ring in place when putting the sender unit back in.

[cygnusx1]

I believe there is a metal "tab" that is part of the tank bung, that helps hold the o-ring in place. A non petroleum or synthetic grease is a good idea too. Some greases can dissolve some o-ring materials.

[SteveJ]

My line of thought was that if the o-ring has to stand up to gasoline, it probably was not very susceptible to deterioration by petroleum based products.

[cygnusx1]

This should be true and probably is true with OEM stuff. You never know with the replacement stuff.

[5thhorsemann]

I believe the o ring goes between the tank and the sender. The tank is 'grooved' for the o ring. I've replaced a few and had no issues with keeping the o ring in place when putting the sender unit back in.

I recently replaced mine, this is correct.

The O-ring is petrolium resistant, so use a heavy petro based grease to hold the Oring in place and prevent tearing it if the sender moves durring lock ring installation.

[WDILL]

Thanks everyone for the information. I would be completely lost without this web site.

[cesar280z]

Cygnusx1 is right, between fuel tank and unit

Attached is a picture, I recently

replace my fuel tank