Hi, I've been chasing problems on an 86 Trophy that I purchased after it was bought new off the Detroit boat show floor room, used twice and the parked in a field. (El Pescador may remember this one).
From the onset it overfueled, gas in pan, strong gas in exhaust, big rainbow on water.
After following advice I've managed to bolt everything new on it and 3 carbs later, 3 pumps later, all new fuel system, pertronix ignition and tune ups and fuel filters and everything except Dorothy's dog.
Now I have a stranger issue, it never did run right but specs are across the board with the manuals. 155 across all cylinders, 6.1 at fuel pump, 12.8 at coil.............etc
It runs like a raped ape at the dock, but get her underway and over 2200 RPM and it stablizes like it's in a lean condition. I broke down and bought an edelbrock marine 650 after 2 vp rochesters and same, same. No fuel restrictions. Everything right down to the pickup and antisyphon are new as well as the damn hose claps.
I can ramp the engine up at the dock and secondarys open and it purrs. Underway, loaded at 2200 rpm it just gasps.
I guess I have 2 questions and am all ears. What ohm coil should I be running (without the resistor as per pertronix) (I have a 1,5 flame thrower) 2nd one is.......I have no vacuum lines to the carb and all the ports are plugged as were the VP carbs. Should I have?
The outdrive is free and runs out perfect, so why just under load??
Guess that's 3 questions.
Anyone??
The boat only has 300 hours on it and is virtually new. Hasn't been molested (yet, but if I can't get it going soon my wife might).
350 chevy, 280 O/D naturally aspirated.
Any and all help is appreciated!!!!
Denny
From the onset it overfueled, gas in pan, strong gas in exhaust, big rainbow on water.
After following advice I've managed to bolt everything new on it and 3 carbs later, 3 pumps later, all new fuel system, pertronix ignition and tune ups and fuel filters and everything except Dorothy's dog.
Now I have a stranger issue, it never did run right but specs are across the board with the manuals. 155 across all cylinders, 6.1 at fuel pump, 12.8 at coil.............etc
It runs like a raped ape at the dock, but get her underway and over 2200 RPM and it stablizes like it's in a lean condition. I broke down and bought an edelbrock marine 650 after 2 vp rochesters and same, same. No fuel restrictions. Everything right down to the pickup and antisyphon are new as well as the damn hose claps.
I can ramp the engine up at the dock and secondarys open and it purrs. Underway, loaded at 2200 rpm it just gasps.
I guess I have 2 questions and am all ears. What ohm coil should I be running (without the resistor as per pertronix) (I have a 1,5 flame thrower) 2nd one is.......I have no vacuum lines to the carb and all the ports are plugged as were the VP carbs. Should I have?
The outdrive is free and runs out perfect, so why just under load??
Guess that's 3 questions.
Anyone??
The boat only has 300 hours on it and is virtually new. Hasn't been molested (yet, but if I can't get it going soon my wife might).
350 chevy, 280 O/D naturally aspirated.
Any and all help is appreciated!!!!
Denny