Are my props causing all my problems?

[TTuck003]

Hello,
Terry Here. Just got back from another failed attempt at running this boat. Looking for some help or suggestions.

1st Symptom:

Can’t get it to plane. Bogging down and popping at the carb.

Fuel system:
Holley 2300 2bbl fresh rebuild and cleaning, fresh fuel, new fuel pump, fuel/water separator. Fuel pressure at 5psi at the carb. Cleaned the fuel tank. New plugs.

2nd symptom: getting stuck in gear

New gear oil. Old gear oil small amount of metal on magnet. New dog and shifter thing and seal. Pressure tested good.

It did get hot, replaced the sea pump impeller, staying under 175 degrees now.

Has bad prop from previous owner. I know better…idle great, when 1st start. Starts running rough when warms up. Shudders intermittently. Bogging and vibrations under load. Got it up to plane WOT then it gave up and died. Restarted, but was obviously flooded.

Would out of shape props be the only cause to all of these problems?

Any help here guys is greatly appreciated!

 

[Dieter]

Hello,
Terry Here. Just got back from another failed attempt at running this boat. Looking for some help or suggestions.

1st Symptom:

Can’t get it to plane. Bogging down and popping at the carb.

Fuel system:
Holley 2300 2bbl fresh rebuild and cleaning, fresh fuel, new fuel pump, fuel/water separator. Fuel pressure at 5psi at the carb. Cleaned the fuel tank. New plugs.

2nd symptom: getting stuck in gear

New gear oil. Old gear oil small amount of metal on magnet. New dog and shifter thing and seal. Pressure tested good.

It did get hot, replaced the sea pump impeller, staying under 175 degrees now.

Has bad prop from previous owner. I know better…idle great, when 1st start. Starts running rough when warms up. Shudders intermittently. Bogging and vibrations under load. Got it up to plane WOT then it gave up and died. Restarted, but was obviously flooded.

Would out of shape props be the only cause to all of these problems?

Any help here guys is greatly appreciated!

i would blame the vibrations on the props, but the rest of it sound like tune up and run ability issues.

Since it got hot do you still have good compression and ruled out a head gasket?

I would check the compression, look over ignition components including checking timing and consider a carb rebuild

 

[TTuck003]

i would blame the vibrations on the props, but the rest of it sound like tune up and run ability issues.

Since it got hot do you still have good compression and ruled out a head gasket?

I would check the compression, look over ignition components including checking timing and consider a carb rebuild

Thank you. I’ll get back to you after I check compression and ignition parts. Just put a Holley carb kit in it. It idles and revs great until it’s put under a load.

Again, thank you for your suggestions.

 

[makomark]

reving in N really doesn't tell you much....under load is where the rubber meets the pavement.

I'd also suggest checking the timing as well as making sure it advancing with RPM...

may also want to verify fuel pressure is stable while running...and that the anti-syphon valve is clear...

 

[Dieter]

reving in N really doesn't tell you much....under load is where the rubber meets the pavement.

I'd also suggest checking the timing as well as making sure it advancing with RPM...

may also want to verify fuel pressure is stable while running...and that the anti-syphon valve is clear...

x2 on checking advance is coming in