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Join Date: Mar 2004
Posts: 8
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Clogged fuel Tank ?
I have been trying to start my 1976 911S which has been sitting for 2 years. I determined the car was not getting any gas and thought is was the fuel pump. When I removed the pump, I expected gas to pour out of the tank where is connects to the fuel pump. It did not even drip. I have since drained the tank and removed the filter on the bottom. There was some mud like material on the filter. My question is how do I clean out the connection the pump draws from. I can stick a tywrap in the connection, but it only goes it 4"-8". Is there another screen. Please help.
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10-10-2008, 01:24 PM
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Join Date: Jul 2000
Location: So. Calif.
Posts: 19,910
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As a suggestion, try blowing reduced air pressure into the tank outlet with an air gun. Clean the filter and replace the plug, then pour some kerosene into the tank and agitate the muck with this combination.
Removing the tank will allow better access to everything. A trip to the hot tank is also easier this way. Sherwood |
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10-10-2008, 01:36 PM
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i say you take it to a radiator shop that can handle a gas tank. our CIS cars have some tiny orifices that get stuck with ease. why send all that crap down stream? parts are expensive.
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poof! gone |
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10-10-2008, 02:07 PM
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I agree with VASH/ remove the tank and have it cleaned at a radiator shop. then I would use about two gallons of gas in it and a can of seafoam or marvel through the system.
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A nose heavy airplane flies poorly, a tail heavy plane flies once. |
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10-10-2008, 02:19 PM
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plus if it sat for two years put a little light oil down the sparkplug holes and hand turn it a couple of times to lubricate the cylinders a little before trying to start it, could save you a lot of money.
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A nose heavy airplane flies poorly, a tail heavy plane flies once. |
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10-10-2008, 02:21 PM
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Join Date: Oct 2005
Location: Capistrano Beach, Ca.
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I would agree with having a pro shop clean out the tank. The fact the tywrap only went in 4-8 inches" could be the result of hitting the edge of the "swirl pot" inside the tank but, no doubt, the tank has muck and rust from sitting for two years.
One caution, which someone with experience may confirm--be sure the radiator shop is aware of the swirl pot and that whatever they use to chemically clean the tank will not melt the material. I don't know for sure if this is a danger but there was a thread which warned of some tank cleaners (DIY's) that destroyed the pot.
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L.J. Recovering Porsche-holic Gave up trying to stay clean Stabilized on a Pelican I.V. drip |
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10-10-2008, 02:33 PM
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Join Date: Mar 2004
Posts: 8
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I took 911pcars advice and blew air in the line. Sure enough, after about 30 seconds a big glob came out the filter hole. I put the pump back together and the car started right up. There was no rust in the tank. Thanks for all your help. I plan on having the radiator shop clean it up.
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10-10-2008, 02:40 PM
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1979 Porsche 911SC
