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Fuel leak from the gas tank area

 
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bureau13  



Joined: 07 Sep 2017
Posts: 211
Location: South Florida

PostPosted: Wed Dec 19, 2018 12:09 am    Post subject: Fuel leak from the gas tank area Reply with quote

I walked by my car the other day and smelled gas (it hadn't been running) and saw that the ground near the passenger-side rear was wet. Sure enough, I'm getting a steady drip from the gas tank area. Taking a closer look, it seems to be coming from the end of the in-tank fuel pump where it meets the tank, or possibly the hose connected there...it's all wet, so I wasn't able to pinpoint it in the dark. The drip itself is coming from the bottom edge of where the pump is (threaded?) into the tank, but now that I've stopped cursing and am thinking about it, since the connectors and the hose are all wet, it's likely leaking at the hose and then running down to the lowest point and dripping off.

Hopefully that's it, because I'd really rather not replace that pump. Is that section of fuel hose available? Anything specific about this job that is weird? Anything else I should replace down there?

Thanks
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1982 931
1986.5 Silver 928S
2007 Hummer H3 (Daily Driver)

Past lives (I miss them all):
2004 RX-8 (Wrecked)
1993 RX-7 (Sold)
1987 RX-7 Turbo II (Sold)
1985 RX-7 GSL (Stolen)
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Qik Nip  



Joined: 16 Jan 2015
Posts: 130
Location: Kentucky

PostPosted: Wed Dec 19, 2018 3:52 am    Post subject: Reply with quote

Sounds like the rubber gasket between the pump and tank has given up the ghost. Order a new one from Pelican. It only takes a few minutes to install. Might be a good idea to burn up as much gas in the tank as possible to minimize the quantity you'll need to drain. Also, buy a new rubber fuel hose to replace the one you'll remove. Chances are it's become hardened over the years.
Rick
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'79 NA 924 Land Speed Car
Bonneville G/CPRO record @ 149.825MPH
Arkansas Mile G/CPRO record @ 138.0 MPH
Great Lakes SCCA SM points champion '09,'10,'11
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bureau13  



Joined: 07 Sep 2017
Posts: 211
Location: South Florida

PostPosted: Wed Dec 19, 2018 7:43 am    Post subject: Reply with quote

That doesn't sound too bad. The fuel hose is just clamped on, right? I don't think I felt a connector up there. Is that the case on both ends though? If not I can just buy a length of fuel hose, and not some bespoke Porsche part for a million bucks (I was looking at that in-tank pump and YIKES...that better not go bad).

Qik Nip wrote:
Sounds like the rubber gasket between the pump and tank has given up the ghost. Order a new one from Pelican. It only takes a few minutes to install. Might be a good idea to burn up as much gas in the tank as possible to minimize the quantity you'll need to drain. Also, buy a new rubber fuel hose to replace the one you'll remove. Chances are it's become hardened over the years.
Rick

_________________
-----------------------------------------
1982 931
1986.5 Silver 928S
2007 Hummer H3 (Daily Driver)

Past lives (I miss them all):
2004 RX-8 (Wrecked)
1993 RX-7 (Sold)
1987 RX-7 Turbo II (Sold)
1985 RX-7 GSL (Stolen)
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bureau13  



Joined: 07 Sep 2017
Posts: 211
Location: South Florida

PostPosted: Wed Dec 19, 2018 7:51 am    Post subject: Reply with quote

Actually, I found part numbers for the hose and clamps, and Pelican has them, although they don't ship as quickly, and they "can't confirm they'll fit my car." If it's not a special molded piece I can just get a generic one locally I would think. Thoughts?

Qik Nip wrote:
Sounds like the rubber gasket between the pump and tank has given up the ghost. Order a new one from Pelican. It only takes a few minutes to install. Might be a good idea to burn up as much gas in the tank as possible to minimize the quantity you'll need to drain. Also, buy a new rubber fuel hose to replace the one you'll remove. Chances are it's become hardened over the years.
Rick
[/quote]
_________________
-----------------------------------------
1982 931
1986.5 Silver 928S
2007 Hummer H3 (Daily Driver)

Past lives (I miss them all):
2004 RX-8 (Wrecked)
1993 RX-7 (Sold)
1987 RX-7 Turbo II (Sold)
1985 RX-7 GSL (Stolen)
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knobby  



Joined: 23 May 2011
Posts: 41
Location: Cincinnati,Ohio

PostPosted: Sat Dec 22, 2018 3:33 am    Post subject: Reply with quote

That section of fuel hose is still available from Porsche and is reasonably priced.You shouldn't use a straight hose because it needs to be pre-formed in an S shape otherwise it will kink and impede fuel flow.
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bureau13  



Joined: 07 Sep 2017
Posts: 211
Location: South Florida

PostPosted: Sat Dec 22, 2018 4:32 am    Post subject: Reply with quote

That makes sense. I wasn't sure if it was formed that way from factory, or due to age and heat. Thanks for the info!

knobby wrote:
That section of fuel hose is still available from Porsche and is reasonably priced.You shouldn't use a straight hose because it needs to be pre-formed in an S shape otherwise it will kink and impede fuel flow.

_________________
-----------------------------------------
1982 931
1986.5 Silver 928S
2007 Hummer H3 (Daily Driver)

Past lives (I miss them all):
2004 RX-8 (Wrecked)
1993 RX-7 (Sold)
1987 RX-7 Turbo II (Sold)
1985 RX-7 GSL (Stolen)
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View user's profile Send private message
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