Mercruser intake holes

Merc4ever

Petty Officer 1st Class
Joined
Feb 14, 2009
Messages
232
On a 1989 V6 4.3 litre mercarb 2bbl Lookin at my engine on the left side of the carb down on top of the intake are 2 holes that look like they would cause a vacum leak. they are in the center of a small football shaped plate with 2 bolts outside of the holes holding it down to the intake manifold.

Is there something that is suppose to go into these holes?

If not what is there purpose?
 

Bt Doctur

Supreme Mariner
Joined
Aug 29, 2004
Messages
19,111
Re: Mercruser intake holes

Taking a guess they might have been used for a egr or recirc valve used in auto applications and blocked off for marine use
 
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