Well took my boat to the Marine Tech just for a full check up and get some services done. We water tested it when we bought it and it ran good but just wanted a trained eye on it. We replaced the impeller on it in the oiutdrive, put new spark plugs in it which were motorcraft I think, greased two zerk fittings on the outdrive which he told me was the gimble bearing, and finally rana compression test. The numbers came back as dead even 150 psi on cylinders 1-4 and 155 psi on 5 and 6. Is that good?
Are the motorcraft plugs okay to run? They ran the plug that came out of it and said tha t the Motorcraft plug PN was SP-425 ASF52C, sound right? Also is the grease zerk fitting for the gimble bearing exposed on the omc cobra drives? Thanks