Riser gaskets, 350 MPI

Toddavid

Petty Officer 2nd Class
Joined
Sep 8, 2012
Messages
183
Previous owners used the boat in salt and brackish water, but dry stacked between uses. 94 original hours currently on the clock, verified by ECU scan. Manifolds and risers look to be original. Before splashing for the season this year, I plan to pull the risers to inspect for corrosion.

What's the difference between the full flow and restricted flow gaskets? The engine is raw water cooled, and use is only during spring and summer in NE US, fresh water.

Engine serial 0W635474.
 

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Re: Riser gaskets, 350 MPI

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achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Re: Riser gaskets, 350 MPI

You use the correct gasket as per Merc original.

Your part number is -864850A02.

Chris......
 
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