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Join Date: Jul 2002
Location: Atlanta
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fuel accumulator ?
I took the bottom line loose from my accumulator last night and turned the fuel pump on. fuel poured out. My understanding is that this would indicate the diaphrgm is leaking. Is that right?
My car is doing the CIS surge but my research did not reveal that a bad accumulator would cause this??? ANy way I have searched the archives and seen that leaking accumulators are bad but ususally they did not have the pump on when they get the leak. Wanted to check before spending money. Thanks
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erik.lombard@gmail.com 1994 Lotus Esprit S4 - interesting! 84 lime green back date (LWB 911R) SOLD  RSR look hot rod, based on 75' SOLD 73 911t 3.0SC Hot rod Gulf Blue - Sold. |
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10-29-2004, 07:49 AM
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I have always assumed this meant the diaphragm was leaking. Mine did this and I replaced it and it didn't do it any more. :>)
A bad accumulator will also show up as a hard starting when warm problem. Cranks and cranks until it starts kinda thing. Mike
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Mike 1976 Euro 911 3.2 w/10.3 compression & SSIs 22/29 torsions, 22/22 adjustable sways, Carrera brakes |
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10-29-2004, 08:30 AM
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I need a little clarity on this one.
I am supposed to start the engine to charge up the injection system, then shut it down, and pull the line off the bottom of the accumulator. Then if it drips its shot. Right? Also do you put a wrench on one of the top lines to hold the acc from turning while you pull off the bottom line? I have a hot start problem I am trying to chase. (78 911sc) Thanks
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1999 Carrera2 tip arena red 2000 Boxster S tip...arena red ....black 1981 911sc targa...grey mkt.import...Rosewood 1978 911SC, guards red sunroof delete .much missed 73 914 2.0 found in a bunch of cardboard boxes, and brought back from the dead. |
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02-09-2005, 06:38 AM
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Yes to your first question.
There is a little squared off area on the fuel acc. that you put your wrench on.
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erik.lombard@gmail.com 1994 Lotus Esprit S4 - interesting! 84 lime green back date (LWB 911R) SOLD RSR look hot rod, based on 75' SOLD 73 911t 3.0SC Hot rod Gulf Blue - Sold. |
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02-09-2005, 08:35 AM
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Ok I didn't see any squared off area to put a wrench on, but I held the thing steady and pulled the bottom line off. It did drip.
So I guess this is the hot start problem I have had. ?? If so I know what I need to buy now. Thanks
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1999 Carrera2 tip arena red 2000 Boxster S tip...arena red ....black 1981 911sc targa...grey mkt.import...Rosewood 1978 911SC, guards red sunroof delete .much missed 73 914 2.0 found in a bunch of cardboard boxes, and brought back from the dead. |
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02-09-2005, 03:31 PM
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DOnt get too excited, mine was totally shot and I did not have any hot start problems.... YOu can by pass it if you can figure out how to plug all of the hoses and run for a while like that to make sure its your problem.
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erik.lombard@gmail.com 1994 Lotus Esprit S4 - interesting! 84 lime green back date (LWB 911R) SOLD RSR look hot rod, based on 75' SOLD 73 911t 3.0SC Hot rod Gulf Blue - Sold. |
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02-09-2005, 03:35 PM
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Location: Washington state
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Hot start problem can be check valve.
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'80 SC |
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02-09-2005, 05:19 PM
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Who is John Galt?
Join Date: Jun 2003
Location: Knoxville, TN
Posts: 638
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Hot start problems can also be leaking injectors. Surging can be a maladjusted WUR. You should spend $50 to get a fuel pressure gauge, as that's less than any CIS part costs, and you will know for sure what the problem is.
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'79 911sc Targa '02 slk230 kompressor '84 Tamiya Falcon A democracy cannot exist as a permanent form of government. It can only exist until the voters discover that they can vote themselves largesse from the public treasury. From that moment on, the majority always votes for the candidates promising the most benefits from the public treasury with the result that a democracy always collapses over loose fiscal policy, always followed by a dictatorship. The average age of the world's greatest civilizations has been 200 years. |
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02-09-2005, 05:52 PM
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Location: Riverside, CA
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Where's a good place to pick up a fuel pressure guage?
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Dave '75 911s Coupe |
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02-10-2005, 08:57 PM
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Pelican sells them. I bought a cheapo and the fittings from an Aeroquip store. ~$70. For a few more bucks you can get the real deal from Pelican (If I had known :-))
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erik.lombard@gmail.com 1994 Lotus Esprit S4 - interesting! 84 lime green back date (LWB 911R) SOLD RSR look hot rod, based on 75' SOLD 73 911t 3.0SC Hot rod Gulf Blue - Sold. |
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02-11-2005, 03:05 AM
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MAGA
Join Date: May 2004
Posts: 10,775
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They are pretty easy to make too if you have the right kind of stuff laying around.
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German autos: '79 911 SC, '87 951, '03 330i, '08 Cayenne, '13 Cayenne 0% Liberal Men do not quit playing because they get old.... They get old because they quit playing. |
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02-11-2005, 04:44 AM
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1976 Porsche 911
1978 Porsche 911SC 3.0
My boxster..s
