1999 454 MPI water temp too high
06-27-2006, 05:49 PM
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1999 454 MPI water temp too high
Friend of mine had a cracked block after swallowing too much sand in engine. Swaped the engine with the same year same engine model, complete drop in unit. New impeller in sea water pump, new pump on engine, flushed all hose and drive from outside toward inside and inside towards outside. even tried without thermosthat, temp was the same except it cooled off faster when slowing down. Checked timing, checked water temp with a thermometer right in the outlet on the engine... run 175 at idle 183-85 on plane, then you hear the buzzer... roughly 10 degre more than port engine.
WHAT ARE YOUR TEMP ON THESE ENGINE ? I can't find the problem after like 12-15 hours on it!
WHAT ARE YOUR TEMP ON THESE ENGINE ? I can't find the problem after like 12-15 hours on it!
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06-27-2006, 09:39 PM
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Re: 1999 454 MPI water temp too high
I would use a laser temp gun while runing to confirm temps and where they are at, that should help narrow down your problem
and make sure you gages/ alarm senders are accurate
alarms should not be going off at 185
and make sure you gages/ alarm senders are accurate
alarms should not be going off at 185
06-27-2006, 10:28 PM
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Re: 1999 454 MPI water temp too high
Originally Posted by GOODT
I would use a laser temp gun while runing to confirm temps and where they are at, that should help narrow down your problem
and make sure you gages/ alarm senders are accurate
alarms should not be going off at 185
and make sure you gages/ alarm senders are accurate
alarms should not be going off at 185
