I was recently talking with a mechanic about this potential problem, we have twin FL 120's in our boat. He was recommending a simple external temp alarm be installed on the exhaust elbow to warm of high temps often associated with cylinder 6 overheating issues. The alarm could give a warning and time for shutdown to possible avoid catastrophic failure. I monitor with an IR gun as part of my underway checks. The mechanic said it is a band clamp install with wiring to an audible alarm. Seemed pretty straightforward.
Does anyone have this setup on their engines? The photos and problem associated with this repair have my ears tuned in to this thread.
I'm not sure about that...if they were a different injector than OEM but a suitable replacement and the tech verified by serial numbers from the injector manufacturer...that presents a common issue in the marine world.
My guess is that they were exactly the same but verifying sometimes isn't just one phone call unfortunately.
Well Jeff, there is the "Operators Manual & Parts Identification" book which came with the engine..... is there a book or class to get caught up on how to maintain the FL120? Thanks!
~ Jeff
I am no diesel expert. But I am wondering why nobody is considering low coolant flow to be the cause of this. Where is the engine temperature measured? I apologize in advance if these are noob suggestions, I am just trying to learn as much as I can.
Scott