news update on my free boat ?????is it seize

[bolo789]

hey guys, about the free boat i post about lately,<br /><br />i want to know if the engine is seized up ,<br /><br />first i took out all the spark plugs.<br /><br />take the starter out. <br /><br /> take the valve covers off, pour in marble mystry oil in holes in the heads.<br /><br /><br />pour marble oil in the spark plugs holes. <br /><br />i also use two cans of wd 40 .<br /><br />here comes the scarey part i put a winch on the bolt on the balancer and try to turn it, it seems like the nut was a little loose, so i keep turning antil it get more tight, now iam scared, how much presure can i put on the bolt??? i dont want to break it.<br /><br /><br />last thing i did was pull all the bolts on the intake manifold i want to look at the cilinders to see if they got rust on them.<br /><br />as i said i did not turn the bolt on the balancer antil it caunt turn no more it stil have a little more to go.<br /><br />iam taking the starter to get it chek out if it is good should i install it back???<br /><br />how i neeed all the info i can get on this thanks.<br /><br /><br />engine is A MERC 5.7L 260 hore BOAT IS 1989 TO 1990<br /><br />I WILL BE WAITING FOR ALL THE GOOD INFO<br /><br /><br />THANKS MUCH BOLO

 

[Don S]

Re: news update on my free boat ?????is it seize

Did you see any rust on the spark plugs, if you did, then there is probably rust in the cylinders as well, and NO, with no plugs in it, it should turn fairly easy. But before you panic too much, pull the drive and try to turn it over by hand.<br />If the gimbal bearing is locked up (or worse yet the drive) it will not allow you to turn the engine.<br />DO NOT try to use the starter if the engine won't turn by hand.<br />If you do have rust on the spark plugs, pull the heads and look. If the cylinders are rusty you sure don't want to just break it loose and try running it as that would destroy the rings for sure.

 

[waterone1@aol.com]

Re: news update on my free boat ?????is it seize

As don said pull the drive and see if the engine will turn with it off. If it still doesn't turn, you might try carefully using a screwdriver on the flywheel teeth ( not a prybar, as the screwdriver will break before you do damage to the teeth). This may free it up, if not, you are looking at tearing the engine down.

 

[tommays]

Re: news update on my free boat ?????is it seize

bolos boat came with out a drive as a project<br /><br />tommays

 

[Don S]

Re: news update on my free boat ?????is it seize

Then he needs to pull the engine apart and find out why it won't turn. Pulling the heads is easy.<br />Like I mentioned before, if it is rust in the cylinders, breaking it loose and running it is not a good idea. Might work on an old truck, but not a boat engine that runs at 3000+ rpm under full load all the time.

 

[Don S]

Re: news update on my free boat ?????is it seize

If it's locking up when you turn it, it may be a broken rod. The rod (or what is left of it) is just hitting something as you turn it.<br />If you can turn it, and it doesn't lock up, turn it over and feel each cylinder. You should get compression on each one, even turning it by hand a little bit at a time. If no compression, see if you can feel the piston moving up and down as you slowly turn the engine. Usually a piece of solid core house wire will bend enough to feel the piston, and soft enough to not damage anyting.

 

[Don S]

Re: news update on my free boat ?????is it seize

Get a manual before you go any further. If you don't know which goes on first the head or the intake manifold and don't have a service manual, then you shouldn't be messing with it.

 

[waterone1@aol.com]

Re: news update on my free boat ?????is it seize

Bolo, Either I am reading your post wrong or Don is. Are you saying that the balancer bolt is turning (tightening) but the crankshaft has not moved ? Or are you saying that the whole thing is turning to a point and stopping ?<br />As for dissasembling, the fuel line comes off, the wiring disconnected, then the distributer, then the intake, then loosen rockers, make holes in cardboard to keep track of which push rod goes where, then remove head.

 

[bolo789]

Re: news update on my free boat ?????is it seize

i have the manual just dit not have it with me today. we did our friend head last year he has a 350 chevy and i am sure the head did go on first, any way it did got dark on me today i will se in the morn. thats no prob just want to get it turn.

 

[bolo789]

Re: news update on my free boat ?????is it seize

thanks no drive is on the boat<br />plugs has no rust, all look well burnt.<br />if i turn the nut on the balancer now it will still turn should i turn it antil it caunt go no more, then try to apply pressure??

 

[bolo789]

Re: news update on my free boat ?????is it seize

i will have to pull the head no matter waht because the tube that came on the wd40 spray fell in one of the spark plug hole. lsat year we tear down my friends 350 engine and iam pretty much sure the intake manifold is the last peice to go on i meant the heads go on first, right

 

[cc lancer]

Re: news update on my free boat ?????is it seize

I would suggest to stop turning the engine over with the balancer bolt. You might wring it off. I have seen some engines, where it would be a night mare to get the broken bolt out.

 

[bolo789]

Re: news update on my free boat ?????is it seize

thanks every one i will let you know what happen in the morn i have to pull the head first. no more trying to turn it right off

 

[waterone1@aol.com]

Re: news update on my free boat ?????is it seize

While I can't comment on old truck engines ?? I can say that I have worked on several early 90's Merc 5.7's this year (including about six complete rebuilds). If this engine has been sitting for some time and you are trying to turn it over by the harmonic balancer bolt and are starting to get nervous that the bolt might break.....then stop. Either use a screwdriver on the flywheel(you'll have more leverage) or put a known good starter on it. A little bit of surface rust on several components can lead to one hard to turn over engine. If it's really rusted/seized you are going to have to tear it all the way down and do a complete rebuild including new rings and honing the cylinder walls (as well as other things like valve work, etc.).<br />If it is just "stuck" you might get it free and then be able to proceed with compression tests, leak down tests, etc. to check on the condition of the rings, valves, etc.

 

[KRS]

Re: news update on my free boat ?????is it seize

Let the marvel mystery oil do it's "majic", it needs to sit for some time (3 days or so, add more) before full benefits can see expected.

 

[bolo789]

Re: news update on my free boat ?????is it seize

too much rain today could not get nothing done, the screwdriver on the balancer is what i had in mind, thanks

 

[Peter J Fraser]

Re: news update on my free boat ?????is it seize

Bolo,<br />Not on the balancer, use the screwdriver or pry bar against the flywheel ring gear teeth.<br />You get more leverage there. Try to turn the motor backwards first and see if it will begin rocking back and forth. Dont use the starter motor to bump it over or something will break.<br /><br />Peter

 

[bolo789]

Re: news update on my free boat ?????is it seize

oh i see on the flyweel, ok, i think i will have some good result saturday, i hope lol.<br /><br /><br />thanks

 

[KaGee]

Re: news update on my free boat ?????is it seize

Bolo,<br /><br />Craftsman makes a heavy duty strap wrench that will fit around the balancer pulley. It's about $20. After you get the heads off, you can use the strap wrench to turn the crank over. DO NOT continue to turn the crank bolt. You will snap it off.

 

[Don S]

Re: news update on my free boat ?????is it seize

The Engine is going to be nothing more than junk if it's turned over with rust in the cylinders.<br />I don't care what type of marvel oils you put in there. It may let it finally turn, but it will only be a short time bandaid fix, not a repair of a marine engine to but in a boat to go out on the water where you can't walk home from, and then run under full load all the time.<br />If you want to be an engine hack, do it on cars or trucks so you can pull over to the side of the road when it takes the big dump. Not out on the water.....Tows are very expensive. And if the weather is bad, it could also be down right deadly.