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stormcrow stormcrow is offline
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Join Date: Aug 1999
Location: Stockbridge, GA
Posts: 1,334
Garage
Adjusting Warm Up Regulator for 78 SC you gotta read this

Well, I have been having a problem with my fuel pressure. I noticed when the P-car has been sitting for awhile, it's hard to start.

That's not to say that it will not start, but it fires right up and then dies. Well, I put the gauge on it and found out that the pressure goes to 80 and the engine shuts down. Starts back up again and does this about four or five times before it stays running.

So, I decided I needed to check the pressure regulator. Now, I know there have been posts on installing a screw to adjust it, but looking at mine, I didn't think it would work. There is a recess in the bottom with a copper cap inserted.

I took the regulator apart but could not find any way to adjust it. I then drilled a hole in the copper cap and guess what I found.

There is a 4mm allen screw on the otherside of the copper cap. That screw is used to adjust the pressure on the system. If I hadn't drilled the hole in it, I wouldn't have known.

I made some adjustments and it works. So, if you have a pressure regulator similar to the one below, all you have to do is drill a hole in the bottom and you can adjust it.

Steve

"A Porsche does more then just go fast in a straight line"
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Last edited by stormcrow; 12-21-2002 at 07:06 PM..
Old 12-21-2002, 07:02 PM
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