Re: Fuel Pump Leaking

Posted by HH56 On 2015/9/15 11:18:16

I hope you are going to examine the old pump as I would surely like to know what or if you find something amiss with the diaphragm.

If there is no sign of moisture on top then I am at a loss and at least you will have a new pump but no satisfaction as to why it was needed. If the diaphragm is in sad shape because of fuel that is something we need to be aware of. IIRC you bought your kit from the same place lots of us have.

Another possibility might be damage if the diaphragm was stretched or pulled. I know it is hard to keep the lever down and diaphragm in a stroke position when tightening the screws holding the halves together but that has been the cause of some premature failures and excess pressure problems. If the diaphragm is relaxed when tightened the max stroke causes it to be pulled very tight and it can tear at one of the holes or in the center where the stem and plates are fastened together.