This is a sea trial of a Yamaha F350 outboard engine. There was noticible bearing noise heard from the port outboard engine. Upon removing the upper cowling the bearing noise could clearly be heard in the starboard bank in the cam shaft (part of the valve train). A leakdown test should be conducted and removal of the valve cover should be done to visually inspect the cam shaft, bearings, and oil passages in that bank.
Capt. John Banister, AMS®
Suenos Azules Marine Surveying and Consulting
4521 PGA Boulevard, Suite 461
Palm Beach Gardens, Florida 33418
SAMS® Accredited Marine Surveyor
ABYC® Standards Accredited
ABYC® Gasoline Engines Technician Certified
Yamaha Certified Outboard Marine Technician
Mercury / MerCruiser Certified Technician
Honda Certified Outboard Engine Technician
USPAP® Certificate on Appraisal Standards
ITC® Certified Level II Thermographer
USCG Licensed Master Captain
Member SAMS®, ABYC®, IAMI®, & NFPA®
(561) 255-4139
