Curt Sprenger
03-11-2007, 04:31
I changed seven fuel lines...4 at the heads, Racor to fuel pump, fuel
pump to filter inlet, return manifold to hard return line.
After priming/starting the 8V92...Fuel Pressure readings were 8 at idle,
45 at 2150 rpms. Ran the engine for a few minutes. Fuel pressure now 2
at idle, 30 at 2150 rpms. The manual says 20 to 30 at idle, 50 to 70 at
2150 rpms.
A new fuel pump was installed. Same low pressures as above.
Removed the pressure relief plug, gasket, pin, spring, relief valve,
from the *old* pump. All looks good, nothing stuck.
My error, I did not take fuel pressure readings before the hose change,
problem could have been there before.
Thoughts?
--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, Calif.
pump to filter inlet, return manifold to hard return line.
After priming/starting the 8V92...Fuel Pressure readings were 8 at idle,
45 at 2150 rpms. Ran the engine for a few minutes. Fuel pressure now 2
at idle, 30 at 2150 rpms. The manual says 20 to 30 at idle, 50 to 70 at
2150 rpms.
A new fuel pump was installed. Same low pressures as above.
Removed the pressure relief plug, gasket, pin, spring, relief valve,
from the *old* pump. All looks good, nothing stuck.
My error, I did not take fuel pressure readings before the hose change,
problem could have been there before.
Thoughts?
--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, Calif.