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Registered
Join Date: Nov 2007
Location: Northeast
Posts: 51
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Fuel system flush?
I bought a car that's been sitting for a while (almost a year?) due to broken water pump. After water pump is replaced, is fuel system flush the next step - new filter, etc.?
I've been doing some reading - seems to be the way to go. Should I change all the other fluids at the same time? Thanks. I'd appreciate any advice. New Porsche owner... 
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11-08-2007, 08:20 AM
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Registered
Join Date: Nov 2004
Location: ronkonkoma ny 11779
Posts: 2,024
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what was "broken" as far as the waterpump goes? Did the car overheat? Also check the timing marks are aligned before removing the timing belt to replace the waterpump.
__________________
83 944....bye bye 85.5 euro spec 944, 5sp (she's gone....  74 914...hasta LA Vista baby 87 924s....don't let the door hit ya 68 912.......see ya! |
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11-08-2007, 02:02 PM
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Proprietoristicly Refined
Join Date: Jul 2001
Location: ~Carefree Highway~
Posts: 5,833
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Marious208,
Identify your vehicle please. Did you get any records from the PO? Do you plan to do the work yourself? Do you own other Porsche cars and then we can decide to begin from scratch or intermediate help. I would not be worried about the fuel system until you fix the WP issue. Guessing you need basic help, the WP requires the removal of the BIG crank NUT in front of the engine. You need to lock the crank. Pelican sells the flywheel lock device for $35.50 Pel-tol-p233. You may as well get it now because you will become very familiar with the engine over the years. Welcome and do not turn the engine until you get the cam belt aligned or you may-if not already done-bend valves and this really gets expensive. John-AZ 1988 924S 1987 924S |
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11-08-2007, 03:00 PM
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Registered
Join Date: Nov 2007
Location: Northeast
Posts: 51
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Thanks for your help. It looks like the water pump is going to be too much for me to handle. I bought a replacement, but I know I'm in over my head here.
For what it's worth, I was told the water pump just failed as the guy was leaving the driveway. The fuel system flush thing I saw at 924.org. This is just a beginner car so I can learn my way around...it's a 924 that's in pretty amazing condition - garaged. Just looking to have a little fun with it. I'm working my way up to the 944s, but I'm glad I found this place. |
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11-08-2007, 07:11 PM
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Redline Racer
Join Date: Jan 2007
Posts: 2,444
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Quote:
Good luck with the water pump. I'm days away from doing that job myself. It's come time for the timing belt ritual for the second time, and the pump that's on there is of unknown age/mileage that I've been driving on for 30,000 miles. 
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1987 silver 924S made it to 225k mi! Sent to the big garage in the sky |
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11-08-2007, 08:02 PM
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Proprietoristicly Refined
Join Date: Jul 2001
Location: ~Carefree Highway~
Posts: 5,833
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Marius208,
What year is your 924? What I advised was for the 924S and 944 series of cars. The water pump on a 924 is easy. Get dirty and do it yourself. I've owned a 1977.5 and a 1979 924. The normal problem is grounds. Get a real thick negative ground cable if not already done and replace the old one. Then clean all grounds. The Haynes manuel gives a lot of good info. If you really want to get retro, I have the factory installed Porsche 40 channel Citizens Band-CB radio that was in my '79. The handset itself is a collectors item with the Porsche plate. Ah the way back years...and 79 cents/gal of gas. Good luck John_AZ |
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11-09-2007, 03:45 AM
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Registered
Join Date: Nov 2007
Location: Northeast
Posts: 51
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The 924 is a '79. The Haynes manual is on its way - haven't got it yet. Thanks for your advice.
I've been reading through some of the forum and have learned a lot - picked up some parts and I'm looking forward to my winter project. |
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11-09-2007, 07:15 AM
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Registered
Join Date: Jul 2000
Posts: 5,750
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Marius,
Not familiar with the 924.org fuel flush thing, but it may be a good idea if the car has been sitting. Old sitting gas gives CIS a rough time. Go ahead with the timing belt while you are there. & check the idler. Just make get the motor at TDC as earlr says. The 924 isn't near as bad as a 944 & you'll do fine with the Haynes book.
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drew1 wife has 924 turbo |
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11-13-2007, 03:12 AM
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Dog-faced pony soldier
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If you want to flush the fuel I'd undo the nut on the front of the fuel rail (be careful removing it, it has a ball bearing inside that is easily lost if you're not ready to catch it when it falls out) and connect a hose to it or place a collection receptacle underneath. Then (carefully) jumper terminals 30 & 87b (pretty sure, you can double-check my recollection of the correct terminals on Clarks Garage) on the DME relay to make the fuel pump run. This will pump all the fuel out of the tank and out the fuel rail into your collection can or whatever you're using. Be careful not to run the tank completely dry (the fuel pumps are self-lubricating and can fail if they're run dry).
Easy, simple and can be done pretty cleanly. Just be careful not to have any sources of ignition nearby and have a fire extinguishers handy (common sense stuff).
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A car, a 911, a motorbike and a few surfboards Black Cars Matter |
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11-13-2007, 03:28 AM
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