94 Sea Ray 170 w/ 3.0L Mercruiser Carb Question

[Harritwo]

Last time out, noticed that my accelerator pump is going out, ordered a kit, tore the carb down, soaked it in cleaner and noticed that the bowl is extremely pitted.

A) Will this be an issue?
b) Could it possibly be repaired using JB Weld or equal, smoothing it out so to stop any further pitting?
c) Is it time to start looking for another carb?

There are no leaks, the carb is still tight and everything else appears good. I believe that the pitting is a result of water in the fuel from years past. The carb in question is a Merc, the engine is a 3.0 S/N is OF144286. Engine has 185 hours since new, no major work done other than impeller, manifolds and such.

 

[rickryder]

I have seen pit in many older carbs on cars and motorcycles never seemed to bother performance a bit

I would not put JB weld inside a carb.... Tank glove or some type of internal tank coat would work but it's not necessary with this.... I would leave it be... My .02

 

[Fastatv]

Last time out, noticed that my accelerator pump is going out, ordered a kit, tore the carb down, soaked it in cleaner and noticed that the bowl is extremely pitted.

A) Will this be an issue?
b) Could it possibly be repaired using JB Weld or equal, smoothing it out so to stop any further pitting?
c) Is it time to start looking for another carb?

There are no leaks, the carb is still tight and everything else appears good. I believe that the pitting is a result of water in the fuel from years past. The carb in question is a Merc, the engine is a 3.0 S/N is OF144286. Engine has 185 hours since new, no major work done other than impeller, manifolds and such.

Pitting was a common problem on marine carbs when I had a carb rebuild shop down in Florida. I doubt it will be an issue, just ensure you remove any remaining corrosion, and all loose deposites. On the really badly pitted carbs, I would clean thoroughly and apply a thin coat of Marine Tex in the bowl area. I never had one come back. Good luck

 

[airshot]

My two cents worth.....I would try and remove as much of the pitting or deposits as I could, using a wire brush or even some emery cloth or whatever. I would not want to see them come loose or flake off at a later date and cause an issue. As long as there is no loose scale and no leaks then you should be good to go

 

[alldodge]

So long as the pits are not in the accelerator pump bore