Fuel pump, ethanol, teflon tape

Gun Dog

Petty Officer 1st Class
Joined
Mar 22, 2011
Messages
265
I took a break from stripping the hull of the holiday this weekend. We wanted to hit the water for some bass in the Cajun but had to take care of the fuel pump issue on the 1995 88 spl. Classic symptoms. Primer bulb would not pump up. Would not run at throttle without pumping the bulb. Poor idle/performance. After removing the pump and dissembling I found the following. In addition to being worn out in general.

Diaphragm spring out of place
WoodWorkings-011.jpgWoodWorkings-023.jpg

Deteriorated valve, assuming from ethanol

WoodWorkings 012.JPGWoodWorkings 014.JPG
 

Gun Dog

Petty Officer 1st Class
Joined
Mar 22, 2011
Messages
265
Re: Fuel pump, ethanol, teflon tape

More photos

New valves on bottom

WoodWorkings 017.JPG

New valves installed
WoodWorkings 019.JPGWoodWorkings 020.JPG
 

Gun Dog

Petty Officer 1st Class
Joined
Mar 22, 2011
Messages
265
Re: Fuel pump, ethanol, teflon tape

Teflon tape in the filter. Some has been broken down by the ethanol.

WoodWorkings-027.jpg




New fuel line with ethanol resistant liner.

WoodWorkings 030.JPG

The motor sure runs fine now.

P.S. didn't catch any bass.
 

Daviet

Fleet Admiral
Joined
Sep 24, 2008
Messages
8,958
Re: Fuel pump, ethanol, teflon tape

Looks like a job well done, good fishing.
 
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