Okay so so far ive collected 3 free longshaft Evinrudes: one 74' 9.9hp 76' 9.9hp and 78' 15hp. None of them ran but all 3 were completely free. Out of those the first sucked a headgasket and has seized and corroded. The second was bored .030" over and has a gouged cylinder low compression and has some weird what looks like sharp metal slivers and gouges where it looks like something was hammering into the crank girdle on the piston side? The pistons looked to be in good shape so I was a little confused there as to what caused it of course maybe thats why it got rebuilt. Im assuming the gouge was one of those slivers coming free and getting caught in the wrist pin hole of the piston and stuck in the very bottom lip of the piston. The third was a good rebuild able core with 40psi ie low compression with minimal cylinder scoring that is still stock bore ready to be bored out. So in total i have 3 good longshaft lower units, the full electric start kit with the beside flywheel starter, multiple rope starts two 9.9 carbs and a 15hp carb and parts for a full motor and them MUCH more for repairs. Have the updated pee hole cowling and water jacket cover. The only not great part is the head where the only good one without preignition pitting is the older style 9.9 head. Now it it worth the $40 to get the newer head? My other concern in the electric start/charge flywheel, it looks like the upper crank bearing was loose or the steel laminates were not adjusted so theres a bit of wear to the inside of the flywheel. No magnets are damaged but there is a lot of wear to the metal lip to the side that holds the magnet. Is that a concern? Should i have it re balanced?
Okay so heres the dilemma...Rebuild kit is 300 plus coil packs etc and whatever it needs and i have a running 2 stroke motor with 0 hours and plenty of parts and people swear by its reliability. That considered I was was just given a 2008 Mercury 15hp 4 stroke completely free from a family friend its an F15M. He siad it ran even after the lower unit died but has been broke for a while and has no forward gear, oil filter is dated 2010. Compression is 110 115 and thats on a Harbor freight compression tester so accuracy is idk? When I did the compression test i noticed it spraying oil out the bottom plug hole and did see some oil pooled below the outboard (lower unit off) after 10-20 total pulls betqween both cylinders. Is that normal? Rings stuck? Just from sitting for years?. Has the bracket for electric start so im sure down the road i could do a conversion. As a kicker/trolling motor i could use a drop down bracket but i'm not sure if it would be better vs a long shaft. Ive seen a $250 extension kit avail but not sure if its good? The issue on that one is the lower unit though.... forwards gear is missing like 5 teeth, reverse has a few damaged teeth and large prop shaft bearing is siezed whether or not it was before or after its been drained and open for a while is unknown. From some staining on the stainless shaft im guessing some water intruded. It would need 2 new gears bearing and a new seal set etc. Im not sure if its cheaper to rebuild a lower unit or replace with used. This motor also needs a prop and a cover.
Which one should i go with? Maybe one now one later?
Okay so heres the dilemma...Rebuild kit is 300 plus coil packs etc and whatever it needs and i have a running 2 stroke motor with 0 hours and plenty of parts and people swear by its reliability. That considered I was was just given a 2008 Mercury 15hp 4 stroke completely free from a family friend its an F15M. He siad it ran even after the lower unit died but has been broke for a while and has no forward gear, oil filter is dated 2010. Compression is 110 115 and thats on a Harbor freight compression tester so accuracy is idk? When I did the compression test i noticed it spraying oil out the bottom plug hole and did see some oil pooled below the outboard (lower unit off) after 10-20 total pulls betqween both cylinders. Is that normal? Rings stuck? Just from sitting for years?. Has the bracket for electric start so im sure down the road i could do a conversion. As a kicker/trolling motor i could use a drop down bracket but i'm not sure if it would be better vs a long shaft. Ive seen a $250 extension kit avail but not sure if its good? The issue on that one is the lower unit though.... forwards gear is missing like 5 teeth, reverse has a few damaged teeth and large prop shaft bearing is siezed whether or not it was before or after its been drained and open for a while is unknown. From some staining on the stainless shaft im guessing some water intruded. It would need 2 new gears bearing and a new seal set etc. Im not sure if its cheaper to rebuild a lower unit or replace with used. This motor also needs a prop and a cover.
Which one should i go with? Maybe one now one later?
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