So looking at a boat with twin 7.4 Horizons. Year 2000. 600-700 or so hrs. WOT Spec is 4400-4800. Only hits 4000 RPM, 30.7 Kts (35 mph). Owner reports cruise generally 3100 RPMs, 27 kts (31 mph).
A bit aprehensive as these are the engines with the overlapping valve train and subject to water ingestion issues. So what are the possibilities regarding the WOT?
Tune up?
Compression issues? Compression test not done.
Valves/Head issues?
Easy fix? Hard fix? Run forest run?
Thanks in advance.
A bit aprehensive as these are the engines with the overlapping valve train and subject to water ingestion issues. So what are the possibilities regarding the WOT?
Tune up?
Compression issues? Compression test not done.
Valves/Head issues?
Easy fix? Hard fix? Run forest run?
Thanks in advance.