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Rich H

If your gauge is not reading full even after remortguaging the house and filling the tank (Fuel is now over £1 a liter ~$8 a gallon) try this:

Pull up the sender cover in the boot (Big rubber bung) and there are 3 spade connectors.
Pull each one off in turn and clean them with a fiberglass pencil (If you have one) or a bit of fine Wet and Dry abrasive paper.
Slap some of the girlfriend's vaseline on each.
squeeze the spade connector with pliers and refit.
Voila, full acknoledgement of your hard won expensive fuel load.

If this doesn't work then the advanced version:

Pop out the gauge unit from the dash (It just pushes out, push harder!) and take it to bits.
3 screws round the outside and 2 on the inner plate, not the nuts, thats next.
The whole lot comes to bits then (Don't worry its not that complicated)
Once apart undo the nuts on the back and the gauge units will pull off the board (I had to gently lever them off)
Clean the pins that they plug onto with fine wet and dry and vaseline them again.
Reassemble.
Clean and vaseline the pins on the back of the board too for good measure.

Jobs a carrot

Rich
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1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Nice how-to, but my wife uses dielectric grease.
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

Rich H · Posted: Mon Jan 07, 2008 4:57 am Post subject:

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1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec

tuurbo · Posted: Mon Jan 07, 2008 5:01 am Post subject:

Ozzie · Posted: Mon Jan 07, 2008 5:56 am Post subject:

Vince Ponz · Joined: 02 Nov 2002 Posts: 3581 Location: Florida

You can try that but I warn you that the skinny three or so lines are very thin and they stretch.Ask me how I know.
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"Never let them see you sweat"
77.5 924 modified track car
79 931 Euro stock
88 924S SE
87 911 Targa stock

emoore924 · Joined: 13 Apr 2004 Posts: 2822

Yeah, but what about the fuel guage?

!tom · Posted: Tue Jan 08, 2008 4:19 am Post subject:

Rich H · Posted: Tue Jan 08, 2008 5:12 am Post subject:

Definatly the outside connectors. I didin't open the tank.
_________________
1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec

Vince Ponz · Joined: 02 Nov 2002 Posts: 3581 Location: Florida

You can open it and pour some liquid cleaner in but just open it enough to pour it in. The wires are VERY thin. They stretch if you breath on them.
_________________
"Never let them see you sweat"
77.5 924 modified track car
79 931 Euro stock
88 924S SE
87 911 Targa stock

Rich H · Posted: Tue Jan 08, 2008 8:14 pm Post subject:

If its that bad I would get another sender...

I just fixed all the electrics to and from the sender and gauge and my fuel gauge read full instead of 50%
_________________
1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec

pocketscience · Posted: Sat Jan 19, 2008 9:42 pm Post subject:

Horrible rainy day here in Sydney, and my fuel gauge had been nagging me for a while... I'd read this when Rich first posted it and thought "yup, gotta check that out".

5 minutes later - fantastic result!

Thanks!
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Whoever said you can't buy happiness forgot about Porsche!
81 924 N/A, GTS lights, Saratoga, interior, headers, Integral cam, EFI (sold)
95 993
69 911

Rich H · Posted: Sat Jan 19, 2008 9:59 pm Post subject:

Happy to help!

_________________
1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec

kojab · Joined: 02 Nov 2002 Posts: 61 Location: Sydney Australia

I have just read this thread and decided to give it ago as my fuel gauge has never worked properly from the day I took ownership. This is certainly an easy one to get too. Noticed that two of the spade terminals themselves had slight movement normally held with what looked like rivets on the top of the sender unit. Sprayed some japanese contact rejuvenator on loose rivets and spade connectors and now fuel reading on gauge has never read so high.
Now I will go and fill the tank and see if it reads full.

Thanks Rich H
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1979 931 Supercharged EFI. Delco conversion.
Toyota SC14 Blower, 12.5 PSI. Front mount intercooler.

Peter_in_AU · Joined: 29 Jul 2001 Posts: 2743 Location: Sydney, Australia

I'll put a copy of this in the How-To.
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1979 924 (Gone to a better place)
1974 Lotus 7 S4 "Big Valve" Twin-cam (waiting)
1982 924 (As featured on Wikipedia)

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