1960 305 V6 (manual) Fuel Pump Issue

[KIC]

My 60 305 appeared to have a fuel pump issue. Bought a new manual pump and it wouldn't work either. Kept chasing and checking for line leaks etc.

Even checked with a vacuum tester which appeared to show it sucking but still not pushing through.

Finally decided to bench test the new one with a bottle of gas and it worked fine. Then I bench tested the old one and it worked fine.

Started to think that the issue was inside where the pump lever rides on the lobe (?), but then remembered that the vacuum test appeared to show it creating a vacuum.


SO...... Any ideas ?

I really want to stay with the original manual style, but even thinking of running a hidden electric through the manual one..

[Jferrante]

what was the "suspected fuel pump issue"? Seems that its something else. If its no fuel check for a clogged filter.

[KIC]

It is weird, we even bypassed the whole line with short line to a bottle with gas in it.

I did run into a friend that has a restoration repair shop and he told me that he has had up to 5 failures in a row on new manual pumps. And he buys top end pumps. He said that he finds very small shavings and particles in the pumps that can affect the valves inside. So he buys a pump and immediately takes it apart and cleans it.

That will probably be my next move followed by an electric pump that flows through the mechanical so it at at least looks original.

[rvrfoot]

Maybe the lobe is worn out?

[nbrfd007]

I finally gave up and install a electric fuel pump. Went thru 3 new mechanical pumps, stranded too many times.

[Jferrante]

best way to fix it is to put an LS in

[BigSix]

I had that issue. In my case it might have been particles from the fuel tank. Electric is the way to go.

[hotrodder]

Not everyone has the money to put in a LS. So in searching for an answer I would go with the idea that the lobe is probably worn and the pump lever is not able to do the job. Just an idea.

[KIC]

Originally Posted by hotrodder

Not everyone has the money to put in a LS. So in searching for an answer I would go with the idea that the lobe is probably worn and the pump lever is not able to do the job. Just an idea.

That is what we are kinda looking at. the engine has 100,000 miles on it which isn't much for those beasts, but thinking on welding a thin piece on the back of the lever to see if that "works" as the easiest test to figure it out.

Most likely going to go the electric route ( poor man's LS) and later work on building a pass through on the manual so it looks original.

Thanks everybody for the input.