Slow-roller
New member
Please help:
1992 carb’d 5.0 Mercruiser low power issue.
Replaced fuel hose (was hard and needed replaced anyway), fuel water separator and installed a clear inline fuel filter so I could have a visual. Boat starts, idles and runs fine until you get anywhere close to WOT and it hesitates intitially but then accelerates, although not nearly as well as it should. It struggles to get on plane when normally it would jump right up no problem. On the muffs in the driveway, the in-line fuel filter was completely full but when I took it to the lake, I saw that it was so empty I couldn’t believe it was even running. So I checked the usual suspects:
-removed vent hose on tank side and vent side and blew air brought it (no blockage)
-blew through actual vent (no blockage)
-removed pick up tube from tank expecting strainer to be clogged (no blockage and ball valve/check valve sliding freely)
Unfortunately, I don’t have a way to test inline fuel pressure post pump but is it safe to say the fuel pump is the culprit?
1992 carb’d 5.0 Mercruiser low power issue.
Replaced fuel hose (was hard and needed replaced anyway), fuel water separator and installed a clear inline fuel filter so I could have a visual. Boat starts, idles and runs fine until you get anywhere close to WOT and it hesitates intitially but then accelerates, although not nearly as well as it should. It struggles to get on plane when normally it would jump right up no problem. On the muffs in the driveway, the in-line fuel filter was completely full but when I took it to the lake, I saw that it was so empty I couldn’t believe it was even running. So I checked the usual suspects:
-removed vent hose on tank side and vent side and blew air brought it (no blockage)
-blew through actual vent (no blockage)
-removed pick up tube from tank expecting strainer to be clogged (no blockage and ball valve/check valve sliding freely)
Unfortunately, I don’t have a way to test inline fuel pressure post pump but is it safe to say the fuel pump is the culprit?