89 omc carb

[lynnboy021]

i have a 2bbl carb on a omc 5.0 chevy motor and i need a new carb so my ?s are can i put on a 4bbl carb or do i need a 2bbl carb? if i do install a 4bbl do i need a new intake or do i need to change anything?????

 

[etracer68]

Re: 89 omc carb

Take off the 2b, and look at the intake, that should answer your question. But if it confuses you, then YES, you need a 4 b intake for a 4 b carb.

Why not just get the 2b rebuilt?

 

[Don S]

Re: 89 omc carb

If you have a 2 bbl manifold, then you can't put a 4 bbl carb on it. If you were to use an adapter, the upgrade to a 4bbl carb would be a waste of time.
Unless you change the intake to a 4bbl, there is no advantage to going to a 4bbl carb.

 

[lynnboy021]

Re: 89 omc carb

Take off the 2b, and look at the intake, that should answer your question. But if it confuses you, then YES, you need a 4 b intake for a 4 b carb.

Why not just get the 2b rebuilt?

i am selling the boat and the carb wont stop dumping fuel into the motor so i told the person he can just rebuild it and he said he would just want to install a new one.......

If you have a 2 bbl manifold, then you can't put a 4 bbl carb on it. If you were to use an adapter, the upgrade to a 4bbl carb would be a waste of time.
Unless you change the intake to a 4bbl, there is no advantage to going to a 4bbl carb.

thanks Don S

 

[Don S]

Re: 89 omc carb

i am selling the boat and the carb wont stop dumping fuel into the motor so i told the person he can just rebuild it and he said he would just want to install a new one.......

If it's such an easy fix, why don't you just rebuild the carb yourself and sell a good running boat. They sell for more money when they run right.

 

[lynnboy021]

Re: 89 omc carb

Don S i told him i was not going to start the motor up till its like always 50F and up so i wont crack the block.. i am selling the boat cuz i want a bigger one like a 25 26 mine is a 23 so i tell everyone what the boat needs. motor was rebuild last year (have all paper work) and i was going to get my carb rebuild but it was already turkey month so i just left it. idk maybe i will just rebuild it, boat works really good its just when you go back to idle or boat on water the card just dumps fuel but if you going like 5 mph @ i think around 1000 1500 rpm carb works really good then when you want to stop the boat then thats when the carb dumps fuel......

 

[etracer68]

Re: 89 omc carb

Sounds like the float is not seating, and over filling the float bowl.