Fuel Pump Diaphragm

[gregmsr]

Hey guys, can someone give me a part # and supplier for the "correct" fuel pump diaphragm 1988 125HP?

I ordered one last year but when it arrived, it was not the same as the old one. (super thin and flimsy, the old one is tough and course texture. I never even installed the new one. Looked like junk.)

Thanks G

 

[pnwboat]

Re: Fuel Pump Diaphragm

Sierra P/N is 18-7806-1 available here on IBoats. Replacement diaphragm should be flexible. Ethanol in today's gas has a tendency to cause the rubber to deteriorate get hard and crack. I know what you're talking about. Thin flimsy diaphragm, but they seem to work just fine. I change mine every few years as part of routine maintenance.

 

[jerryjerry05]

Re: Fuel Pump Diaphragm

Yea flimsy is what you need.
I changed mine a while back the one started weeping fuel around the side and both were stiff.
Actually one had a double diaphragm in it?? and no gasket.The leaking one.
That way when I bought it.Didin't seem to hurt anything.
Just make sure you replace the gasket while doing the rebuild.
Make sure it's tight.Seems if it starts to leak it doesn't want to stop.

 

[gregmsr]

Re: Fuel Pump Diaphragm

Well, ok. I'll just go ahead and install the "thin and flimsy new one" i got last year. (if I can find it. I'll have to look and seeee if a new gasket came with it.....)
Tanks, pwn,jerry(btw, hows the truckin?)

 

[gregmsr]

Re: Fuel Pump Diaphragm

Or rather, pnw.


Developmental reading disorder is a reading disability that occurs when the brain does not properly recognize and process certain symbols. It is also called dyslexia.

 

[MickLovin]

Re: Fuel Pump Diaphragm

Sounds like old age to me

 

[gregmsr]

Re: Fuel Pump Diaphragm

I represent that remark.....

 

[MickLovin]

Re: Fuel Pump Diaphragm

Don't worry my friend me too