Mercruiser Exhaust Manifolds and Mercruiser Exhaust Manifold Tips

 

 
Mercruiser Exhaust, Mercruiser Exhaust Manifolds, Mercruiser Exhaust Manifold, Mercruiser Exhaust Tips

 

 

Typical Gasket Placement for Mercruiser Center Riser Manifolds with or without Spacer see below;

 

 

Mercruiser Exhaust, Mercruiser Exhaust Manifolds, Mercruiser Exhaust Manifold, Mercruiser Exhaust Tips
Mercruiser Exhaust, Mercruiser Exhaust Manifolds, Mercruiser Exhaust Manifold, Mercruiser Exhaust Tips

Mercruiser uses a sleeve in some of their thermostat housings. These parts must be installed properly or the engine may overheat. Please note: Thermostat element temperatures vary from engine manufacturers. Typically a raw-water cooled engine uses temperature ranges of 140-145 degrees F up until 1995 and 160 degrees F from that point until now. Fresh-water cooled engines typically use a range of 160-165 degrees. Most automotive thermostats range from 185-210 degrees and should not be used in marine applications. Always consult your marine engine dealer for the correct thermostat for your application. Misapplication or mis-installation of thermostat element will cause overheating problems.