valleyviewlawns
Seaman
- Joined
- May 2, 2023
- Messages
- 58
2000 Reinell 200C, Volvo Penta 4.3GS.
I have been chasing a rough idle and bog at wide open for a few days. I was having intermittent problems with it cranking but no start. Now I can get it to start regularly. I rented a fuel pressure gauge set and hooked it up inline between the fuel pump and the carb. I took out a Mr. Gasket fuel pressure regulator to put this gauge in line, just to see what I was getting from the pump, and then would adjust the fuel pressure regulator from there. When I ran the engine, on muffs, I was getting about 4psi at idle, and it idles rough. I figured this pump should be pushing around 6-7psi. So I changed the fuel/water filter and ran it again. Now the gauge doesn't read any pressure. The idle hasn't changed, it is still rough. It runs smooth when you run it up around 1500rpms, but below that is rough.
For history, I just bought this boat, it sat for a couple of years with about 1/2 tank of fuel. I filled it topped it off with fresh fuel and have run it down to a half tank, and then filled it up again and ran it down to a half tank.
Would this even start and run without the fuel pump working properly? I am not sure where to go from here.
I have been chasing a rough idle and bog at wide open for a few days. I was having intermittent problems with it cranking but no start. Now I can get it to start regularly. I rented a fuel pressure gauge set and hooked it up inline between the fuel pump and the carb. I took out a Mr. Gasket fuel pressure regulator to put this gauge in line, just to see what I was getting from the pump, and then would adjust the fuel pressure regulator from there. When I ran the engine, on muffs, I was getting about 4psi at idle, and it idles rough. I figured this pump should be pushing around 6-7psi. So I changed the fuel/water filter and ran it again. Now the gauge doesn't read any pressure. The idle hasn't changed, it is still rough. It runs smooth when you run it up around 1500rpms, but below that is rough.
For history, I just bought this boat, it sat for a couple of years with about 1/2 tank of fuel. I filled it topped it off with fresh fuel and have run it down to a half tank, and then filled it up again and ran it down to a half tank.
Would this even start and run without the fuel pump working properly? I am not sure where to go from here.