Re: Compression issues
"if the valves are stuck can i just remove all components from the engine and take apart the head to get a look?"<br />Yes you can remove the head.<br /><br />"does the engine have to be removed from the boat? "<br />For heads removal, I doubt it. Only you know if<br />there is physical room.<br /><br />"i guess my course of action should be to first get it to fire"<br />Not a good idea. First try to restore the compression. <br /><br />If it were me.......<br />Visually inspect valve train for proper<br />movement. Free any sticky valves, determine<br />cause of stick, soak valve stems with oil,<br />clean stems. Generally inspect condition.<br />Soak pistons with oil, MMO, kerosine.<br />Let stand 24 hours.<br />Once I verify valves are free, piston rings<br />well soaked, crank engine with plugs out<br />placing clean rag against spark plug holes.<br />inspect rag for dirt, crud, color of oil.<br />add more oil to cyl soak, repeat clean rag<br />test to determine when crud has been blown out.<br />Do compression check. With and without oil to determine if rings or valves are leaking. If compession has been somewhat restored, do min tune up to assist in starting. New Plugs fresh gas with<br />MMO in 5 gallon container.<br />Start motor, run at 1500rpms to 2200rpms,<br />hoping rings will reseat and hone in.<br /><br />Or remove and rebuild engine. If you have the <br />time, money, skill the ideal thing would be<br />rebuild.<br />I personelly would try to free up things and<br />restore compression. If I can't or things I found<br />were bad, then pull head,(have it checked and <br />rebuild. check cyl walls for score, wear, rust.<br />Might get away with just a valve job.
