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Schwami
Joined: 11 Apr 2016
Posts: 82
Location: Wisconsin Green Bay
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 Posted: Sun Feb 26, 2017 2:05 am Post subject: Fuel level gauge/sending unit |
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While looking in my 79 N/A fuel tank, I removed the sending unit and saw less rust than expected. :) upon reassembly the Gauge is not as erratic because it it is mostly stuck at 1/4 full. The sending unit is the turn in type and not one with bolts. Do I need to replace the sending unit and (if)where does one find this hens tooth.
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1979 924 Diamant Zweischicht.
Serial # 9249201031
XG 309 543 engine code.
2012 Golf Sportwagon TDI |
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924RACR
Joined: 29 Jul 2001
Posts: 8803
Location: Royal Oak, MI, USA
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| Posted: Sun Feb 26, 2017 3:22 am Post subject: |
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Even though yours isn't the bolt-in style, I believe this will still apply:
http://www.924.org/techsection/gas_sender.htm
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Vaughan Scott
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'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype |
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dubrict
Joined: 22 Apr 2011
Posts: 150
Location: Horseheads NY
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| Posted: Sun Feb 26, 2017 3:55 pm Post subject: |
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Be careful on this one. A while back I pulled a sender out of another 79 for my 79, and found they were utterly different sizes. However, this was years ago and I don't remember any specifics (other than the string of f** and s** and WTF's that came out of my mouth,) which in retrospect might have been a bit extreme since the issue didn't really cause any real grief, like gasoline in the face or what-have-you.
Anyway now I'm curious as well, can anybody explain this experience?
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1979 924 NA
2009 Chevy Impala
2005 Dodge Dakota |
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Schwami
Joined: 11 Apr 2016
Posts: 82
Location: Wisconsin Green Bay
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| Posted: Mon Feb 27, 2017 2:06 pm Post subject: |
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I pulled it out again and cleaned it up with brake cleaner. There was rust on the contacts at the bottom of the interior so I carefully scraped it off. BUT working on it I broke the ground wire inside the unit. I un soldered it and took apart a braided wire and replaced it with a strand. Alas the unit is still showing 1/4 tank. But the low fuel light is working again. Baby steps I suppose. ;)
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1979 924 Diamant Zweischicht.
Serial # 9249201031
XG 309 543 engine code.
2012 Golf Sportwagon TDI |
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Schwami
Joined: 11 Apr 2016
Posts: 82
Location: Wisconsin Green Bay
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| Posted: Thu Mar 02, 2017 1:04 pm Post subject: |
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| Schwami wrote: | | I pulled it out again and cleaned it up with brake cleaner. There was rust on the contacts at the bottom of the interior so I carefully scraped it off. BUT working on it I broke the ground wire inside the unit. I un soldered it and took apart a braided wire and replaced it with a strand. Alas the unit is still showing 1/4 tank. But the low fuel light is working again. Baby steps I suppose. ;) |
I got the level sender to work great with the exception of the low level light. That's ok.
The next thing I want to work on is the fuel smell that I get when I open the window while driving. others say they smell it after a 20 minute outside at idle.
Reading many posts and other sites, I'm thinking of the charcoal canister. I've looked near the exhaust for evidence of fuel out of the top of the tank. Inspected the lines to and from tank with the exception of on top of tank. I haven't removed fuel filler cover yet either.
Suggestions are welcome.
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1979 924 Diamant Zweischicht.
Serial # 9249201031
XG 309 543 engine code.
2012 Golf Sportwagon TDI |
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Paul
Joined: 02 Nov 2002
Posts: 9491
Location: Southeast Wisconsin
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| Posted: Sat Mar 04, 2017 4:30 am Post subject: |
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Is your car running rich?
Is there a gap in the weather seal of your hatch right above the lock?
Are the seals good on your taillights?
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White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy. |
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Schwami
Joined: 11 Apr 2016
Posts: 82
Location: Wisconsin Green Bay
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| Posted: Sat Mar 04, 2017 6:55 am Post subject: |
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| Paul wrote: | Is your car running rich?
I can't tell you definitely. In the cold it is white but cleans up after warming. Water/vapor is emitted from tailpipe. Doesn't smell fuely
Is there a gap in the weather seal of your hatch right above the lock?
Yes. It is a future purchase from Ideola.
Are the seals good on your taillights? |
yes.
Being from WI you know the great temp to work outside. Should warm up soon to get a good look at the tank.
Where are you in Wi?
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1979 924 Diamant Zweischicht.
Serial # 9249201031
XG 309 543 engine code.
2012 Golf Sportwagon TDI |
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