Can fuel tank o ring and lock ring be reused?

[JamesLond]

I got a replacement fuel tank and my desire is just to swap everything from the bad tank over.

 

[89Suburban]

Depends if the lock ring is rusted or not.

 

[MassHoe04]

As long as the O-ring is not, squashed flat, brittle or damaged. Probably OK.

Lock ring OK as long as the tabs on the tank are good and the locking detents still push down on the pump assembly to make the O-ring seal good.

Here was my 05 Jeep when I had to replace my fuel pump unexpectedly.
The new pump came with a new o-ring seal.

The metal retainer ring on the Jeep was not pretty, but was still solid and worked just fine pushing tight and holding everything securely for a good seal...


I was in a pinch. I didn't have time to wait or the money to replace the retainer ring.

Not trying to spend your money, especially if you don't have money to spare.
But... Unless the pump you are transferring over is new(ish) or recently installed by you, now might be the time to think about possibly putting in a new fuel pump assembly while everything is apart.
If you can do a new pump, you could save some potential headaches later.

If a new pump is out of the picture, do what you gotta do to get back on the road. Nobody can hold that against you, if that is the situation.

 

[89Suburban]

As long as the O-ring is not, squashed flat, brittle or damaged. Probably OK.

Lock ring OK as long as the tabs on the tank are good and the locking detents still push down on the pump assembly to make the O-ring seal good.

Here was my 05 Jeep when I had to replace my fuel pump unexpectedly.
The new pump came with a new o-ring seal.

The metal retainer ring on the Jeep was not pretty, but was still solid and worked just fine pushing tight and holding everything securely for a good seal...
View attachment 363998

I was in a pinch. I didn't have time to wait or the money to replace the retainer ring.

Not trying to spend your money, especially if you don't have money to spare.
But... Unless the pump you are transferring over is new(ish) or recently installed by you, now might be the time to think about possibly putting in a new fuel pump assembly while everything is apart.
If you can do a new pump, you could save some potential headaches later.

If a new pump is out of the picture, do what you gotta do to get back on the road. Nobody can hold that against you, if that is the situation.

I was going to mention a new pump too but I was getting the impression he was on a budget. Certainly a good move if the funds are available.

 

[Fless]

From what I see for parts availability your "o-ring" will not be that, but will be the more robust gasket similar to the later Flex Fuel pumps use:



That's an actual pic of mine from my '04 FF, not necessarily the same part as yours, but similar. Watch for wrinkles like that (see pointer) in yours so be prepared to replace the gasket if yours is damaged. Otherwise be prepared for evap leaks and code setting fun.

Post up some pics of the pump while it's being changed. We love to see sausage being made.

 

[MassHoe04]

Some anti-seize on the tank strap bolts might not be a bad idea.
You'll appreciate that, especially if you have to drop the tank for any reason in the future.

 

[wjburken]

Some anti-seize on the tank strap bolts might not be a bad idea.
You'll appreciate that, especially if you have to drop the tank for any reason in the future.

Yeah - Like if a reused o-ring starts to leak.

 

[wjburken]

I got a replacement fuel tank and my desire is just to swap everything from the bad tank over.

Not sure where you are with budget, but there is some money that I don't think I can afford to save. How old is your fuel pump? As much of a pain in the rear it is to drop the tank and get to the pump, I would seriously consider making sure that what you are putting back under your vehicle will last as long as possible and not be as likely to leave you stranded somewhere.

If your budget is such that you can only afford the replacement tank right now, I completely understand, and have been there and have done the bare minimum to get me by for a while.

 

[tom3]

I've replaced a couple pumps and the replacement O-ring just would not compress enough to get the lock ring on. Reused the old one with no problems. But as noted above, inspect that old one for any wrinkles, embedded rust/dirt pieces, etc.

 

[JamesLond]

Bah, you guys win again. I don't wanna do this again.

I'll be getting a new Delphi FG0324 fuel pump so I guess by extension that means I'll be getting a new o-ring (or gasket?).

As for the lock ring, I'll have a new one nearby if I don't like the look of the old one.