Brian 26
Chief Petty Officer
- Joined
- Aug 14, 2013
- Messages
- 574
I just bought a 1999 Bayliner 2350 Capri with a Mercruiser 5.0 Carb Alpha 1 engine and outdrive.
The seller told me it hesitated at high speed and high acceleration and had been that way since he bought it 7 years prior. On the test drive I did not notice any hesitation but it was hitting the rev limiter with the 17p prop that was on there. I bought the boat as is for a very low price and switched to a 19p prop which has helped the rev limiter situation (I probably should go up again to a 21p).
Now when I accelerate from idle to full throttle when the engine is below operating temperature it will hesitate a lot and I have to let off the throttle to get it to go. Easing into full acceleration seems OK. I do not notice the problem when the engine is at full operating temperature.
The seller has maintained the boat well and had a mechanic test drive it who supposedly said he thought the issue might be a "hidden fuel filter" that no one ever thought to change (seems unlikely to me).
I'm looking for ideas on how to proceed, my thought is start with the easy stuff first and eliminate possible issues:
vent to the gas tank may not be working correctly
Clean spark arrestor
Change the fuel filter (possibly clogged or water in it..maybe water in the tank)
look for other things slowing the fuel flow (kinked line or this infamous hidden fuel filter)
Spark plugs
Spark plug wires
Clean carb
What would you guys do?
The seller told me it hesitated at high speed and high acceleration and had been that way since he bought it 7 years prior. On the test drive I did not notice any hesitation but it was hitting the rev limiter with the 17p prop that was on there. I bought the boat as is for a very low price and switched to a 19p prop which has helped the rev limiter situation (I probably should go up again to a 21p).
Now when I accelerate from idle to full throttle when the engine is below operating temperature it will hesitate a lot and I have to let off the throttle to get it to go. Easing into full acceleration seems OK. I do not notice the problem when the engine is at full operating temperature.
The seller has maintained the boat well and had a mechanic test drive it who supposedly said he thought the issue might be a "hidden fuel filter" that no one ever thought to change (seems unlikely to me).
I'm looking for ideas on how to proceed, my thought is start with the easy stuff first and eliminate possible issues:
vent to the gas tank may not be working correctly
Clean spark arrestor
Change the fuel filter (possibly clogged or water in it..maybe water in the tank)
look for other things slowing the fuel flow (kinked line or this infamous hidden fuel filter)
Spark plugs
Spark plug wires
Clean carb
What would you guys do?
