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Crew Chief
Join Date: Nov 2001
Location: Wilkesboro, NC
Posts: 1,678
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944 gastank
What is involved in replacing the gas tank on a 86 944 turbo ?
It has sprung a leak after last weekend at the track. 
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Herbert B. GruppeB #093 Carolinas Region PCA Member National PCA Driving Instructor _______________ '71 911 RSR look '74 914 2.0 '76 911S Targa '83 930S Slantnose (13000 miles) '86 951 Prototype Testcar built in '84 (56000 miles) Serial #00014 '86 951 '87 944 "Life is short , drive Fast" |
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12-04-2006, 06:51 AM
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Drop the trans, pull the cover over the inlets and disconnect the couplings, disconnect the level sender, disconnect the fuel pump and drain the tank, take off the support straps.
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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12-04-2006, 07:39 AM
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Crew Chief
Join Date: Nov 2001
Location: Wilkesboro, NC
Posts: 1,678
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It is leaking on the bottom, only the lowest part of the tank is wet.
Could it be some fittings or something else leaking ?
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Herbert B. GruppeB #093 Carolinas Region PCA Member National PCA Driving Instructor _______________ '71 911 RSR look '74 914 2.0 '76 911S Targa '83 930S Slantnose (13000 miles) '86 951 Prototype Testcar built in '84 (56000 miles) Serial #00014 '86 951 '87 944 "Life is short , drive Fast" |
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12-04-2006, 07:53 AM
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Join Date: Sep 2006
Location: Winnipeg, MB, Canada
Posts: 222
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find exact spot of leak and that will tell
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Dan '84 944 - Under construction '77 924 - Sold '05 Jeep Liberty '98 Acura Integra |
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12-04-2006, 09:13 AM
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i've had 2 gas tank leaks in 944's, on my '84 and on my father's POS 83 that has done nothing but sit in the driveway. the solution both times was to loosen the hose coming out of the tank, and crank a bit on the threaded part that is going into the tank with an adjustable wrench or adjustable pliers (carefully of course, and with a rag). stopped the leak both times. just remember to re-tighten the fuel hose, the only reason i disconnected it was to prevent torque from twisting in the threaded part. you could get lucky with this one, the first time i saw the leak i was at school, 200 miles from home. went to the parking lot, saw a puddle, smelled gas.... i had basic tools with me, and it was an easy fix.
good luck!
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Mike - CFI, A&P Mechanic w/ I.A., Aztec driver at Island Tyme '88 951S - zermatt silber/black - staying stock. purchased in 11-2006 '84 944 - gemini grau/tan+brown - lightly modified. purchased in 11-2001 2021 Tesla Y - to get me to work |
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12-04-2006, 09:41 AM
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Join Date: Sep 2001
Location: berkshire uk
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Quote:
 BTW, you could try to repair the leak, welding usually works a treat  ( I'm kidding!)
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----------------------------------------------------------- The fear of God is the begining of wisdom <>< NotJustPorsche Subscribe: notjustporsche-subscribe@yahoogroups.com |
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12-04-2006, 10:25 AM
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Crew Chief
Join Date: Nov 2001
Location: Wilkesboro, NC
Posts: 1,678
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After checking it seems that the fuelpump itself is leaking , not at the line connections but leaking from the pos. terminal !
Anybody seen that before ?
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Herbert B. GruppeB #093 Carolinas Region PCA Member National PCA Driving Instructor _______________ '71 911 RSR look '74 914 2.0 '76 911S Targa '83 930S Slantnose (13000 miles) '86 951 Prototype Testcar built in '84 (56000 miles) Serial #00014 '86 951 '87 944 "Life is short , drive Fast" |
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12-04-2006, 11:21 AM
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Join Date: Sep 2006
Location: Winnipeg, MB, Canada
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are you sure its fuel pump?, if you are check your fuel line comming out of fuel pump, its between both terminals, check the surrounding areas, it it is your pump well either way if it has any fuel on any of the terminals, make sure you unplug your battery before you even play with the pump, last thing you want is the spark on that terminal.
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Dan '84 944 - Under construction '77 924 - Sold '05 Jeep Liberty '98 Acura Integra |
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12-04-2006, 01:33 PM
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Crew Chief
Join Date: Nov 2001
Location: Wilkesboro, NC
Posts: 1,678
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The fuelwell where the hardline goes stays dry after i wipe it off , it looks like it comes from the possitive terminal.
At least that is what gets wet first at a rate of one drop per second
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Herbert B. GruppeB #093 Carolinas Region PCA Member National PCA Driving Instructor _______________ '71 911 RSR look '74 914 2.0 '76 911S Targa '83 930S Slantnose (13000 miles) '86 951 Prototype Testcar built in '84 (56000 miles) Serial #00014 '86 951 '87 944 "Life is short , drive Fast" |
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12-04-2006, 01:46 PM
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Quote:
haha -- I was like wait would that work? O *$&@!  I need sleep
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My cars for sale, due to move 1986 944 turbo - For sale. 1987 944 N/A - For sale. |
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12-04-2006, 03:05 PM
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Location: San Diego
Posts: 703
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fuel pump is done. Replace as sugguested and you're home.
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1987 924S with 968 Drive front to back, Bilstein Insert on mod/stock Struts, 450# Hypercoils, 28mm Torsion Bars, Weltmeister Adjustable Sway Bars, Lindsey 968 Light flywheel, Spec Stage II Clutch, ToYO RA1's, Auto Power Cage & 6 pt Harness, KLA Strut Brace, Greasy hands, heavy foot, and lots of smiles |
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12-04-2006, 08:35 PM
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Location: San Diego
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Oh yea pinch climp the the Fuel supply line before......think soft clamp.
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1987 924S with 968 Drive front to back, Bilstein Insert on mod/stock Struts, 450# Hypercoils, 28mm Torsion Bars, Weltmeister Adjustable Sway Bars, Lindsey 968 Light flywheel, Spec Stage II Clutch, ToYO RA1's, Auto Power Cage & 6 pt Harness, KLA Strut Brace, Greasy hands, heavy foot, and lots of smiles |
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12-04-2006, 08:37 PM
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Location: Calgary, AB
Posts: 1,883
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Could be the crush washer on the check valve too. If the lower (closest to pump) one leaks then it could manifest like that.
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2010 Hyundai Elantra Touring, GLS 5 speed, Indigo Blue Metallic. 2.0L of Korean fury! Buy my parts! |
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12-04-2006, 09:55 PM
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BTW, you could try to repair the leak, welding usually works a treat
( I'm kidding!) Actually I have seen some one weld a tank useing gas welder with brass rods. He filled it full of water then welded it. I must admit I was standing well well back when I saw what he was welding. And was a little disapointed but greatly relieved when it didn't go bang.
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Always start with the cheapest option first 83 NA Guards Red ( Home at last) 2011 Triumph America |
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12-04-2006, 10:35 PM
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Location: berkshire uk
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Quote:
so yep I understand the reasoning behind that but still put your head in between your legs and kiss your assss 
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----------------------------------------------------------- The fear of God is the begining of wisdom <>< NotJustPorsche Subscribe: notjustporsche-subscribe@yahoogroups.com |
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12-05-2006, 09:26 AM
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1983 Porsche 944 2.5 liter
Grey car
Turbo
