Omc runs rough when warmed up

Inthebilge

Cadet
Joined
Jun 7, 2018
Messages
6
87 Omc runs rough when up to temp and eventually stalls. Engine temp is normal, risers are getting hot. I replaced exhaust, circ pump, thermostat.
 

KLFrank

Cadet
Joined
May 31, 2018
Messages
11
If all has been replaced and still overheating, check hoses for debris. Replace hoses with clear to see if you are getting flow. Have you ever had a impeller come apart? If so you might have a blockage
 

Inthebilge

Cadet
Joined
Jun 7, 2018
Messages
6
Thanks, clear intake to thermostat housing clear and good flow, clear hose from thermostat housing to exhaust manifold is good flow but air raided
 
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