Well this gets worse and more puzzling now.
Tried 072 WUR and it made no difference… still no increase in WCP.
I ran it for 6mins, was just about to shut it off and could hear fuel pump struggling, pressure started dropping until I’m the pump almost stopped.
So I removed the 072.
Got my 089, removed the bi-metal plate and plug from the WUR. Tried spraying Brake cleaner in either hole and nothing coming out but I didn’t have the stalk to give it a good shot.
I tried blowing air from my mouth and that wouldn’t pass through either (maybe not enough air pressure)?
Hooked it up to car ran for SP started at 70psi /4.7 bar and very soon dropped down to 40-45psi /3 bar.
Now I’m wondering if there is something blocking the fuel flow in the WUR if that’s even possible.?
I’ve just bypassed the WUR with the gauges and now only getting 40-45psi fuel pressure.. so don’t think the WUR is the fuel block issue?
Back to you team
Quote:
Originally Posted by Vereeken
The screen should look super clean. Zero debris. This screen is after the fuel filter and after a screen in the FD. It can clog up with tarnish but also rust coming from fuel tank.
You should be able to blow though the inlet outlet of the wur with a can of brake cleaner.
You are right that this should normally increase fp . it is the part I do not get myself.
But if I read your original problem it feels as if you get fuel starvation the longer your run and that makes sense with a clogged inlet screen.
But if you re-install the WUR minus the bimetal (but with the pin and hat and springs) you have a WUR with only WCP. This can be difficult to start and keep running the first 2 minutes but it will tell you a lot. It will probably also tell TOny a lot.
For me the WUR (aside from the inlet screen) looks perfect. Good OHM, bimetall not skewed to left or right, 12 V, good CCP.......
Let us know what Tony thinks.
M.
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