Mercruiser 120 Exhaust Test

[trm]

About to do acetone test on my exhaust mani and need to know if I need to remove the caruretor mounting plate boldted on the manifold (see pic) to do the test.

Thanks for input,

trm

 

[trm]

Re: Mercruiser 120 Exhaust Test

Perhaps Don S. or Bubba1235 could chime in here with their thoughts.

 

[trm]

Re: Mercruiser 120 Exhaust Test

I think I may have discovered the leak in my water system. A corner of the riser showed a trace of rust and, as you see in the pic, it was completely broken and held in place by the bolt. I will also test the manifold for leaks with acetone meaning that I still need to know if I need to remove the carburetor mounting plate for testing.

Thanks for any opinions,

trm

 

[trm]

Re: Mercruiser 120 Exhaust Test

The "mounting plate" I referred to above turns out to be the intake manifold. Does the intake manifold have water passages? If so, will the acetone destroy the gasket between the intake and exhaust manifolds?

Thanks for your input,

trm