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2001 50 EFI Power Loss

myers_marine

New member
A little back ground. 2001 5.0

A little back ground. 2001 5.0CFI started out with a bent exhaust valve on the #8 cylinder. New valve and guide along with a full valve job on both heads. New lifters on #8 full set of springs new fuel pump and filters. Hull and drives are clean. (drive had been grown up bad) valves and timing have been checked and reset. Starboard will only turn around 3200 and port (engine with valve job) will only turn 2800. both engines have around 250 hours. New mainfolds and risers. No codes stored or intermitin during operation. Any ideas of where to look next???
 
"Bad gas? Water in gas? I as

"Bad gas? Water in gas? I assume the timing is correct and the spark advance is advancing properly?

Before all the trouble, did she plane off and make much higher rpms?

Jeff"
 
This system was running good p

This system was running good prior to bending the valve. both screws in this boat pull from a common tank and the other is running much better.
 
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