Pickling a Wet 15 hp 2 stroke

[Tim_Mattson]

Wind and wave warning to those moored on Puget Sound today....just had this delivered after feeling an urge(as Heavy Wind hit the Trees outside) to call a neighbor who put his Alum boat near 3 Tree Pt for the coming Holiday.Before I could call,the phone rang and my friend`s neighbor was calling to warn of his predicament.
Don`t ask how I`m so good at reviving sunken motors but I`ll just admit it has been done a few times around here the past few years.Hre`s what to do when it just happened and you want to save the day,or your motor.
First thing done was hosing with freshwater,then pulled spark plugs and carb covers to expose it`s throat.....then I forced Oil and some mixed gas down the hose threaded thru the mix knob hole.Sprayed Fogging oil and Fluid Film in between and when crud was seen.
Spun Flywheel by hand several minutes before pouring in straight 2 stroke oil which is like what they assemble motors with,and why they smoke when new.Basically I`m trying to oil the steel pcs inside the block ,right on the crank.
Spun flywheel with recoil but had plugs out as it will Hydraulic lock with added oil in the cyl.First time with plugs i it would not turn over....loosened plugs until they wiggled and it spun but expelled air/oil out the threads.
Pulled plugs and spun fast a few more minutes to help spread oil inside and lower the amt in cyls.
Put plugs in just slightly loose for first run,motor started in one pull.
Water flow was none so it now has the lower unit off,exposing sand tightly packed around driveshaft and pump.Even had sand packed so tight in prop,no exhaust could come out.
Used the garden hose thru an adaptor to blow thru the copper line ,had the T-stat out it blew some crud from the block.
I`ll pull flywheel too and wipe down and lube anything that may rust.Felt sandy when turning by hand so the hose was pretty much used pretty liberally.Not what I`m used to doing but this is sorta an extreme situation.
Made an oily mess but this routine will help the motor have a good chance of staying alive even next year.
Don`t try this with your 4 stroke......it will need a different approach......
TimM

[Lootas1]

Very interesting. How did it get all that sand in the motor? Wasn't there enough floatation in the boat to keep the motor off the bottom or did it wash up on a sandy beach? BTW, what was that spray oil you used on Rosario's motor? Figure I might want to buy some of that stuff.

[Tim_Mattson]

Outboard Sandcastle

Jerry,
Motor was on a moored boat a little too shallow.Another bigger boat was sideways on the shoreline drawing all attention,then my buddy saw it bounce and drop the motor as it sprung the manual release lever in the rough waves.
Once down ,now that lever locks it in place......hit the bottom a few times and it worked it`s way up and fell off tansom ,landing in the surf.
The fuel line was hooked up and it wasn`t running while getting splashed so it`s way better than if it took a gulp while going underway.
A dealer would have torn it down and replaced items now....usually enough to make one walk away from it.
I was liberal with the spraylube called FluidFilm,sold at fisheries supply in Seattle.Compressed air helped push it into corners and it`s Lanolin base makes it good on your hands.
Fogging oil aslo was down the carb and into cyls.
Thought I was done and then took air to the mid-section and lower cover base where sand flew from huge pockets.
I really need to pull the flywheel and make sure none is trapped where it can scarf upper seal and charging stuff.
TM

[GregJ]

Tim,
Found everything you were talking about over the phone. I was able to adjust idol to your recommendations. Again, thank you very much.

[Tim_Mattson]

timing the 50 ho

Tim,
Found everything you were talking about over the phone. I was able to adjust idol to your recommendations. Again, thank you very much.

Greg,
Final test of your work would be a Timing light check at idle,3-4` and at Wide Open no more than 19`.
Use paper white -out to mark timing number desired,then run for idle.
WOT is tested by pulling plugs and adv throttle to stop,then turn over briefly to see what lights up with top cyl being #1.
I don`t expect you to check wide open but you can toast an engine if you go past that number on sticker put on the carb.
Glad the picture helped.
TimM