Chrysler 55

[Paintball1890]

I have a Chrysler 55hp outboard on an old boat. I was wondering if there was any way I could pump more fuel into it? Every time I try to go wide open it'll run smoothly for a while and then it will jerk due to low fuel intake. I have my buddy sit in the back and keep pumping fuel in with the bulb and it runs fine while he's doing that. When the motor is in gear and at low speeds it runs fine, but when it's in neutral it sometimes dies and when it's wide open it jerks. Please help!

 

[bman1bpm]

Re: Chrysler 55

have you rebuilt your fuel pump?

 

[Paintball1890]

Re: Chrysler 55

I just recently bought the boat and have been fixing it up. I just took it to the boat mechanic and let him fix everything. I'm not real mechanically savvy, but I don't think my boat has a fuel pump. It has the small black ring that the fuel hose attaches to that screws onto the carburetor, but other than that I don't think there's anything else.

 

[bman1bpm]

Re: Chrysler 55

Is this the small black ring you're talking about?

 

[Paintball1890]

Re: Chrysler 55

I'm not sure if that's the exact same one but it's extremely close if it's not.

 

[bman1bpm]

Re: Chrysler 55

That'd be the fuel pump. You unscrew the stainless screw on the black part (fuel screen) and pull it off. Then you there are 6 screws to remove the metal plate, you can see 4 of them real good in this picture. Remove the plate and there is a rubber piece behind there called a diaphragm. Replace the diaphragm and the gasket and you'll be back in business.

 

[Paintball1890]

Re: Chrysler 55

What's your guess for how much it'll cost?

 

[bman1bpm]

Re: Chrysler 55

iboats sells the part for $14.99 plus shipping
http://www.iboats.com/Chrysler_Fuel...2262068--**********.870739134--view_id.270031
Its really easy to fix so I wouldn't pay anyone to do it, just need to know how to operate a screw driver.

 

[bman1bpm]

Re: Chrysler 55

Letting your motor run lean (not enough fuel) can do serious internal damage to the motor, ex melted pistons.