Fuel pump?
Thread Starter
Racer
Joined: Aug 2007
Posts: 305
Likes: 1
From: DRAYTON VALLEY ALBERTA
Fuel pump?
I put a new fuel pump in my 87, which also has a aftermarket regulator from Professional Products. When I turn the key on I see the pressure rise to about 50 PSI and then imediatly drops off as soon as the pump stops running is that normal. If I cycle it on and off the pressure will not go to 50 each time it will go consecutivly less each time.
Team Owner
Joined: Jan 2003
Posts: 20,335
Likes: 264
From: Summerland B.C. Canada
That's not normal. Either PP's reg is allowing the pressure to bleed off, or you have a leak elsewhere.
My pressure loss was at the pulse dampener above fuel pump. I replaced it with a piece of fuel injection hose and 2 clamps.
You need to find your pressure loss area.
http://members.shaw.ca/corvette86/Fu...mDiagnosis.pdf
My pressure loss was at the pulse dampener above fuel pump. I replaced it with a piece of fuel injection hose and 2 clamps.
You need to find your pressure loss area.
http://members.shaw.ca/corvette86/Fu...mDiagnosis.pdf
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Instructor
Joined: Jan 2009
Posts: 151
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I put a new fuel pump in my 87, which also has a aftermarket regulator from Professional Products. When I turn the key on I see the pressure rise to about 50 PSI and then imediatly drops off as soon as the pump stops running is that normal. If I cycle it on and off the pressure will not go to 50 each time it will go consecutivly less each time.
YUP!!!! Just don't go under 41 lbs.
Melting Slicks
Joined: Feb 2006
Posts: 2,753
Likes: 15
From: backwoods upstate ny
