Gasket Comparison

[NewBoater86]

I am trying to find a gasket that will match my 4.3 L Mercruiser - Mercarb. I found one online but it is for a Rochester 2GC. I have been comparing the pictures to the old gasket and it looks like it would match. Anyone have the experience to have worked with both of these carburaters? I took it apart because my throttle was acting funny. Great starting up, but when i try to ease on the throttle it wants to die. I have to play with it, then it revs high. any ideas on either question would be most appreciated.

 

[stonyloam]

Does this look right? https://www.mercruiserparts.com/Sho...esc=CARBURETOR+AND+THROTTLE+LINKAGE(2+BARREL)

 

[GA_Boater]

Welcome aboard.

Moved this thread from the Merc outboard section to the Mercruiser section. I think it works better here.


Are you looking for a a gasket/rebuild kit or a single gasket?

 

[Bondo]

I took it apart because my throttle was acting funny. Great starting up, but when i try to ease on the throttle it wants to die. I have to play with it, then it revs high. any ideas

Ayuh,.... Welcome Aboard,..... Sounds like the accelerator pump is dyin',....

Get a rebuild kit, 'n a replacement accelerator pump(some kits have 'em, some don't),.....

That'll give ya all the gaskets, 'n parts ya need,...

 

[NewBoater86]

I picked up the Mercarb kit from West Marine this morning. I will rebuild and post results. By the way, the Rochester and Mercarb gaskets are similar but won't match exactly.

 

[87 criscraft]

Are you talking about the carb to intake gasket? Some have a ig oval hole,some have 2 holes,1 for each throttle plate. Can they interchange?

 

[NewBoater86]

No. They cant. Have to get Mercarb kit.

 

[87 criscraft]

I have a mercarb on my 3.0l. It had a 2 hole carb to intake gasket on it. My carb kit came with the open center 1 big hole. Is the open one the right one?