Enclosed are 3 shots of the partially disassembled fuel pump showing the diaphragm still attached.
1) Although the diaphragm is not ripped or have any visible holes, it is cupped a fat 1/16" in the dark area. Is that sufficient to cause a fuel transfer problem?
2) The check valve (only see 1)...
Read a post from 2013 with this title but the person posting did not remain on the topic so I am submitting a new post.
I have an AQ130 in my fishing boat that has run fine for a very long time (since 1974). It has the original fuel pump. At the end of 2015, I noticed that the manual priming...