View Single Post
FirstDotLast FirstDotLast is offline
Registered
 
Join Date: Jul 2011
Posts: 94
Busy work week, finally made it in to the garage. Here's some fuel pressures I was able to get:

WUR part #: 0438140-153
Temp: approx. 24 deg C (75 deg F)
Cold pressure: 32 psi -> 2.2 bar
Cold System pressure: 97 psi -> 6.68 bar
Warm pressure: 54 psi -> 3.7 bar
Warm System pressure: 98 psi -> 6.75 bar

The other thing is that I ran the pumps for about 10 minutes to get the warm pressure, I think when I first turned the key I heard the injectors squeal for just a half second or so.

Then, after getting the pressures, I wanted to see if anything got in to the cylinders so I started pulling the spark plugs. All the plugs were at least a bit wet but when I pulled cylinders 1 and 5 fuel came pouring out...a lot... like the cylinders had to be full. Thank god I didn't try to start it first as the engine would absolutely have been locked.

So it seems like these pressures are pretty much fine but does it seem like fuel is getting pumped to the injectors even when the car isn't running? I shouldn't be getting fuel to the cylinders when running the pumps, it should go through the return line to the tank right? The piston in the FD is definitely not stuck, it moves up and down smoothly and at the bottom is in contact with the mixture plate arm.

Not really sure where to go next other than trying to adjust the mixture screw

Last edited by FirstDotLast; 04-24-2025 at 12:11 PM..
Old 04-24-2025, 12:07 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #17 (permalink)