Originally Posted by
KennyKenWheel
Well I put a non return in. Got the fuel to the pump. Dribbled some in with a pipette for good measure. Still nothing.
I knew the later car needed the pump timing, and now I read the earlier one does. Still no idea if this one does. Or if pulling vac on the return should get fuel coming through. I have to presume it's spinning though, and the vane part seems unlikely to have the option not to. So it really seems I fitted a bad pump (which was nice and clean) or there is some electrical part that can stop it
This is the best ford forum right? I have an mx5 turbo, and by now we would be on page 3. I have searched loads, but mostly in-concise topic headings took me nowhere. Is there a thread on this pump at all? Perhaps an electric pump to save me scraping it?
Starting to build a picture. That barrel bit, sits between the lift pump and pressure part, regulating rail pressure by controlling how much goes back to the tank from this point. This was probably what failed on my pump, considering the cough when I did a big shut off on the power. It's PWM driven, so a mechanical issue there is likely.
This new pump just isn't priming, or rather, I'm not getting to pull any real amount of fuel through. I made a clear pipe with non-return and inserted it at the filters inlet, using proper connectors. Then pulled from the pump inlet till it looked alright, and it didn't fall back. I have changed the filter top also, and it did go on tighter with the orange seal I think may be ford. My new filter the other month provided a black o-ring that was not so tight.
I have a 12v diaphragm pump here that's got a bar or so of lift. I hope to try again later. Perhaps I have buggered this pump by now, but I'm learning not to
I had to quote myself. I couldn't post. Each try... token has expired, refresh