Blackfin27
Contributing Member
Just underway today. Port side ran up to 220 and alarmed.
I limped back at low rpm a short distance.
In the slip in idle I revved it up slightly and it alarmed again.
Pulled the hatch and heard a distinct knocking. Shut her down.
Couple observations:
Heat eX seemed very cool to touch. Odd?
Risers didn't seem elevated but the manifold temp I shot was well higher than the good engine.
185 vs. 212+
Had a new water pump kit installed over the winter on both engines. New belts
I was about to have the Risers and manifolds done ..maybe I got there too late?
Any insight on where to start and what might be the problem?
Thanks, ugh, I haven't had a chance to run the boat even this spring. 1997 with about 800 hours. Risers 4.5 years old .
I limped back at low rpm a short distance.
In the slip in idle I revved it up slightly and it alarmed again.
Pulled the hatch and heard a distinct knocking. Shut her down.
Couple observations:
Heat eX seemed very cool to touch. Odd?
Risers didn't seem elevated but the manifold temp I shot was well higher than the good engine.
185 vs. 212+
Had a new water pump kit installed over the winter on both engines. New belts
I was about to have the Risers and manifolds done ..maybe I got there too late?
Any insight on where to start and what might be the problem?
Thanks, ugh, I haven't had a chance to run the boat even this spring. 1997 with about 800 hours. Risers 4.5 years old .