Possible Seized Engine - Need Second Opinion

[nstubbert]

Do the belts need to be removed in order to manually turn it?

 

[bman440440]

I see another possible place for water to enter... one of the pcv's is laying against the riser so the hole in the valve cover is open

 

[Bt Doctur]

Water can enter from the carb because you had to poke a hole for the stud not to mention the valve cover.

When I bought it a couple weeks ago I had to remove about a foot of snow and ice on top of the tarp and about another foot of ice that was underneath the tarp.
I would get it warmed up, remove the sparkplugs and drive , remove the crank pully ,install 3 new fine thread bolts and use a pry bar on them NOT THE NOSE BOLT, or get an input shaft and weld a T handel to it to turn the motor thru the coupler

 

[Scott Danforth]

or pull the damper and use a crank socket

https://www.walmart.com/ip/Sunex-In...54493&wl11=online&wl12=34052250&wl13=&veh=sem

 

[Rick Stephens]

I see another possible place for water to enter... one of the pcv's is laying against the riser so the hole in the valve cover is open

Yup. Both vents are unattached to valve covers.

 

[Big Gee]

I boat in China, Maine.

Even though our daytime temps are improving, nights are still cold enough to prevent thawing if that's your issue.

If you can, put it back in the heated garage, give it time to thaw and like Bondo says: pull the plugs and try turning it over.

We have plenty of time before ice-out. With the help available here, if you pay attention, and can follow suggestions, I'm willing to bet you can figure this out for yourself.

 

[nstubbert]

Thanks for all of your advice. I picked the boat up last night from the shop and brought it to my brothers heated garage. I know now that my mechanic is an idiot. I asked him to pull the spark plugs and put mystery oil down the cylinders. When I picked it up he hadn't done that, he said he didn't need to, he only poured oil down the carburetor, he said that was plenty. So I got it to my brothers garage and pulled all the plugs and put mystery oil in every cylinder and tried turning it using a breaker bar on the harmonic balancer pulley. I turned as easy as could be....it's not seized at all!!! It was probably hydrolocked because when I removed the second spark plug on the left side of the motor some fluid came out...it may have been water, but it was hard to tell because the plugs are underneath and it's difficult to see. So, the question now is if it was water that was in that cylinder, is that a bad thing??

 

[nstubbert]

Big Gee, you must be on China Lake then....I am originally from Waterville. I just moved to Winthrop a couple months ago.

 

[Rick Stephens]

Do an oil change before you do anything else. Going to have water in the pan.

 

[crazy charlie]

Water in the cylinder IS NOT A GOOD THING! everythin inside has to be coated with rust.Thats why it didnt look like water when you pulled the plug.I would go back to the cylinders w plugs pulled and saturate with foaming fogging oil which will expand when sprayed into the cylinder thus coating surfaces that you wont be able to get with MMO.Keep turning that pully and get that oil circulating/coating entire piston and cylinder.Like running the motor in very s l o w m o t i o n .I would do this for several days before you consider firing it upCharlie

 

[Scott Danforth]

get the motor running ASAP

 

[Grub54891]

If that water was frozen, but not fully filling the cyl, you may be ok, I'd get it running as soon as possible myself, get it dried out properly, and before starting, suck out the oil, add cheap oil and run it. Change the oil a couple times to clean her out. Then add the proper oil for the last change.