New M-1083 owner. So, here we go!!

[RRaulston]

So all the other damage was done taking it off? On the forward side of the filter where the hard line from the lift pump enters the filter, there is a T fitting. Hook up a 100PSI gauge there and check the base fuel pressure there. You may have a regulator issue or clogged return path to the tank. Should have 10 PSI when cranking, 20 PSI at idle ramping up to 60PSI by peak torque RPM(1400-1500RPM). Not sure how much pressure the lift pump is capable of generating, but too much is probably not too good for a sheetmetal skinned fuel filter…

I show how to hook up one in this video…

So Ronmar, had a little time for truck maintenance and removed the filter/separator on the primer. I had a 1/16" x 1" twig lodged in the flapper.! can't make it up. Used an O-ring pick and removed it. She primes as designed!!

 

[coachgeo]

So Ronmar, had a little time for truck maintenance and removed the filter/separator on the primer. I had a 1/16" x 1" twig lodged in the flapper.! can't make it up. Used an O-ring pick and removed it. She primes as designed!!

it's always something stupid

 

[Ronmar]

Mine had a long spider leg or a horse hair(camel hair?) lodged in it when I got it… probably the most common issue why they won’t move fuel, but they work pretty well when they are working…