bad fuel pump or bulb?

[mrjhume]

I have a '68 6hp that quits after a few seconds unless i keep pumping the primer bulb, it runs fine if i keep pumping the bulb. Is it a bad fuel pump, or bad primer bulb? If i have to rebuild the fuel pump do i need to get the kit with check valves or do i just need the regular kit?

 

[Barnacle_Bill]

Re: bad fuel pump or bulb?

That is usually a sign of a bad pump but check all your fuel lines first, especially the primer bulb. All should be soft and pliable with no cracks.

 

[Silvertip]

Re: bad fuel pump or bulb?

If pumping the primer bulb keeps the engine going, it's not likely the primer bulb. Air leaks, fuel pump, and pulse line line checks/replacement are all possibilities.