fuel pump questions

[K0rn]

Does the fuel pump just consist of the diaphrams and the housing and the gasket? And does the diaphram pump the gas. How can I tell if the diaphram is bad. I have to pump the bulb when I am accelerating from idle to full speed. But in idle and when its at full speed it pumps fine by itself. Any thoughts on this? Can the diaphrams just be bad?

 

[jerryjerry05]

Re: fuel pump questions

What we working on??? Some pumps have different types of check valves.
A bad diaphram can be a streched one or one with holes in it.Or it can be weak.The check valves can be bad.Some check valves are a small plastic wafer about the size of a quarter and about as thin as a piece of paper.One little bend can make it useless.
Sometime the squeezie is bad too.
Take the fuel pump apart and check it.Post some pics.J

 

[K0rn]

Re: fuel pump questions

Its a 85 50 hp force. Where would the valves be located? I pulled the fuel pump off yesterday it apeared the diaphrams were in place and the gasket looked pretty stretched out kinda bubbly looking

 

[olow]

Re: fuel pump questions

i would say change the fuel pump diafram