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Granite 944 Granite 944 is offline
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Join Date: Jun 2004
Location: Granite Falls, WA
Posts: 543
Man! you guys are relentless!

First point. You don't need to raise your car up/down/sideways or anything.........if your using a presssure tester to bleed with.

2nd point.

" if your referring to the stant 12270 it wont pressurize less than 17lbs?"

REALLY. I don't know where ya got THAT from, but, I'd have to guess your not using the tool properly, insuring that the pump cap is sealing up properly at the overflow tank. This stant comes with a rubber seal ring/spacer which you will need to use with your car. Are you using it? I can put my tester on, and pump it up to just about any pressure I so please. I would recommend starting at around the 10 psi range as is stated in other stated forums/procedures, till ya get a complete handle on whats going on with your car, and you know the condition of all components of your cooling system.

Basic quick procedure I use to bleed the system is:

1: fill coolant tank to midway point (cold).
2: pressurize with the tester pump to approx. 10 PSI. NOTE.......if your not holding pressure at 10psi without a massive/quick drop in pressure, than you need to make sure you've got the tester on properly, and or, you don't have some major leak somewhere. (IF ITS A LEAK somewhere, it should show itself pretty quick and easy at this point).
3: make SURE you have your heater valve open to allow flow in/out of the heater core.
4: open bleeder screw slowly to moderately (have lots of rags or whatever to cover/catch underneath that area) and watch the pressure gage and for air/foamy coolant as your letting all escape out of that bleeder. Close the bleeder valve when ya see gage get down close to zero, but not AT or after zero.
5: Pump the tester/system up again to 10psi, and repeat till you see/hear/feel no evil coming out that bleeder valve. It can take several times of repeat action.
6: Run the car. Bring it up to temp, and let the fans cycle on and off.
7: repeat the bleeding process while warm.

Experience will help ya here. If, you don't think ya got it good enough after driving a bit, simple solution is to repeat all above again. No fuss, no muss. You don't have to raise your car. You only do this as a recommendation, if you DON'T have a pressure tester to work with, because your now depending on gravity to help you bleed the air out, NOT pressure pushing the air bubbles/pockets out. (funny, brake pressure bleeders kinda work the same way. Another great tool to own. )

These testers come in SO handy for bleeding, and FINDING coolant leaks, I think it should be a standard tool in anyones toolbox that is even remotely serious about working on their own cars.

If I missed something here, I hope someone else with the experience will jump in and help/correct me.

Good luck!
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1985/1 944 Granite Red (wife's car. Iceshark is lighting her way)
1983 944 Platinum (my daily)
1985/1 Guards Red (project)
Old 11-15-2006, 04:09 PM
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