I don't know if anyone has ever experienced this, but last year I purchased a kit from Moyer Marine and rebuilt my mechanical fuel pump. Worked great all season. Took the boat out for the winter and this spring before launch, I tried to start the engine. No go. Left the boat and when I returned, there was a lot of gas in the engine bilge. The mechanical fuel pump was leaking a lot. Took it out and took it apart and the rubber diaphram was decomposing on the under side to a black mush. The top side where it interacts with the gas was fine. The diaphram was totally destroyed. I talked to Don Moyer about it and he has never heard of it happening. He was gracious enough to send me another kit but I really need to know what is happening. It almost looks like it might have melted but the engine did not over heat. Usually runs at 140 degrees. I have returned the diaphram to Moyer for investigation. Any ideas. Thanks
Larry
Larry
Comment