This forum offered a lot of helpful information to this thread http://forums.iboats.com/forum/engi...-alpha-one-3-0-v8-bogs-won-t-go-over-2000-rpm .... I'm still having problems and wanted to start a new thread with updated information. The original problem (pasted below) was:
My 2003 Glastron Mercuriser 5.0L starts fine, idles smoothly, but won't hit high speed. .... when I try to accelerate it just bogs. The boat cruises along at idle for hours just fine, but when you try to go past 2000 rpm's it just bogs. Mechanic checked the fuel/water filter and it was fine
I had the carburetor cleaned and the fuel pump replaced and it's much better .... but still bad. Now I can get to 4,000 rpm, but it's painfully slow and difficult to make it up to plane. Now the issue is less of a "bogging" problem, and more of increased engine noise without a corresponding increase in speed. When I do eventually make it up to plane it won't exceed 4,000 RPM and eventually seems to start slowing down like it's not getting fuel. The problem seems particularly bad after the boat has been running for a while. The mechanic said if I still have problems after the new fuel pump I must have "gunk" in my fuel tank and require carburetor work .... wouldn't the fuel filter and separator protect the carburetor from this? Most of the information I gathered from my previous post seemed to point to problems in the fuel circuit; is that still the likely problem?
Thx in advance for all the valuable information I obtain from this forum .... DMiller
My 2003 Glastron Mercuriser 5.0L starts fine, idles smoothly, but won't hit high speed. .... when I try to accelerate it just bogs. The boat cruises along at idle for hours just fine, but when you try to go past 2000 rpm's it just bogs. Mechanic checked the fuel/water filter and it was fine
I had the carburetor cleaned and the fuel pump replaced and it's much better .... but still bad. Now I can get to 4,000 rpm, but it's painfully slow and difficult to make it up to plane. Now the issue is less of a "bogging" problem, and more of increased engine noise without a corresponding increase in speed. When I do eventually make it up to plane it won't exceed 4,000 RPM and eventually seems to start slowing down like it's not getting fuel. The problem seems particularly bad after the boat has been running for a while. The mechanic said if I still have problems after the new fuel pump I must have "gunk" in my fuel tank and require carburetor work .... wouldn't the fuel filter and separator protect the carburetor from this? Most of the information I gathered from my previous post seemed to point to problems in the fuel circuit; is that still the likely problem?
Thx in advance for all the valuable information I obtain from this forum .... DMiller