tparsons56
New member
Two years ago I purchased a 1924 Fay and Bowen Launch that was repowered with a 1999 Marine Power Vortec V6 with a Holley 4 barrel carb. When I got the boat I noticed a Mr. Gasket fuel regulator had been installed so I contacted Marine Power to find out the correct setting and they said they did not install it. For two years the boat ran fine but I had a small amount of raw gas in the exhaust. This year the engine would barley idle in neutral and stalled when put into gear.
I'm having the carb rebuilt but still question the fuel regulator. The fuel pump is a Carter P4601 and is mounted on the engine about 8 ft. from the fuel tank. According to Carter the fuel pump has a working PSI of 6 with a max. of 10-15 PSI. The Holley carb wants about 6 PSI so that would match the Carter. Do you think the fuel regulator was installed because the fuel pump was located away from the tank so it was running at higher PSI to compensate?
I'm having the carb rebuilt but still question the fuel regulator. The fuel pump is a Carter P4601 and is mounted on the engine about 8 ft. from the fuel tank. According to Carter the fuel pump has a working PSI of 6 with a max. of 10-15 PSI. The Holley carb wants about 6 PSI so that would match the Carter. Do you think the fuel regulator was installed because the fuel pump was located away from the tank so it was running at higher PSI to compensate?