Found this, on landyzone...
Yes , has been shown before , I think you will find it originated in the states from the company selling the parts.
But that black thing is not a non return valve by itself, so how much use is it???...LOL
Cheers
This is how it came off, with the black valve on the fuel cooler return
Yep same as mine was, as said try it, if it does not improve the issue swap it over to the LP inlet from the pump and see what happens. Although TBH ,not been following this thread so do not know what issues you are having.
my old worn out ducks bill was slightly open on the ducks bill, the new one was obviously fully closed, which is at it should be.
Cheers
I could have two now I’ve got a spare?
It wasn’t not starting, just runningike a bag of **** for a bit then fine. Just like copper washers
OK, blaming that on copper washers is a new one on me........ never heard that before.
Cheers
Well, problem is 100 times better but now the new Bearmach fuel pump I put on the other day which was almost silent is now quite noisy until the engine starts
So , what did you change to make it better?
Cheers
How does it start first thing in the morning if before trying to start it, you run the purge process with a fully charged good batteryStupid me should have realised when the MAP reading was exactly the same as before, I’d swapped the ecu’s a while ago to see if it was the fuel map causing the overfuelling/rough starting and hadn’t swapped them back over!
I’ve just been up and started it and there was a little white smoke/roughness and the pump is noisey again