Gas Tank Sending Unit Gasket Replacment

Engine, transmission, rear-end, driveline, fuel system etc..
Post Reply
User avatar
riffraff
Sweptline.ORG Member
Sweptline.ORG Member
Posts: 220
Joined: Sat Apr 19, 2014 12:16 am
City: Newport Beach
State: CA

Gas Tank Sending Unit Gasket Replacment

Post by riffraff »

The gas fumes are starting to get to me, and the solution seems to be a new gasket for the sending unit. Am I going to have to remove my seats and tank to do this? I have the Adventurer seats with the fold-down arm rest thing. Anything else I need to be aware of?

1969 W100
Tom
1969 W100 383/435

PwrWgnDrvr
Sweptline.ORG Pioneer
Sweptline.ORG Pioneer
Posts: 7362
Joined: Wed Dec 31, 1969 6:00 pm
Location: Walnut Creek, CA

Re: Gas Tank Sending Unit Gasket Replacment

Post by PwrWgnDrvr »

Are u sure its the gasket?
It could be the fill pipe hose or a common problem of a hairline crack in the tank. Dealt with that on a 70 W200 when it was only 15 yrs old (1985). The crack seeped just enough gas to wet the surface of the tank, but not run down and make a puddle. Fumes were hell!

User avatar
riffraff
Sweptline.ORG Member
Sweptline.ORG Member
Posts: 220
Joined: Sat Apr 19, 2014 12:16 am
City: Newport Beach
State: CA

Re: Gas Tank Sending Unit Gasket Replacment

Post by riffraff »

No, I think it is the sender gasket. The fill hose looks good, clamps are tight. The suction hose I'm going to replace, just because. The tank was recently removed by AAA because the idiot driver dropped half his gas nozzle into the tank. I think they removed the sender to shake out the parts.
Tom
1969 W100 383/435

PwrWgnDrvr
Sweptline.ORG Pioneer
Sweptline.ORG Pioneer
Posts: 7362
Joined: Wed Dec 31, 1969 6:00 pm
Location: Walnut Creek, CA

Re: Gas Tank Sending Unit Gasket Replacment

Post by PwrWgnDrvr »

Make them fix it!
Will have to remove the passenger seat back to get to the sender. That's all.
Should have used a magnet to get the nozzle out, or a grip tool if it was plastic.
Pretty easy to remove the sender and change the gasket. Pretty hard to screw up doing it.

User avatar
riffraff
Sweptline.ORG Member
Sweptline.ORG Member
Posts: 220
Joined: Sat Apr 19, 2014 12:16 am
City: Newport Beach
State: CA

Re: Gas Tank Sending Unit Gasket Replacment

Post by riffraff »

Yeah, I know but... the less hands on my truck the better. I think this was the first anyone but me has touched the truck since I've owned it, other than the muffler shop. I have Adventurer seats, so clear access to the sender. Just didn't know if the sender would clear the rear of the cab with the tank in place.
Tom
1969 W100 383/435

Post Reply