Bota123

New User
Hi Guys
Newbie here Ive got a head scratcher I just picked up an International 606 gas about a week ago and it started and ran fine loaded on the trailer and and when I got ready to unload it a couple of days later the starter wouldnt turn the engine over the starter drive was engaging the flywheel but acted like the engine was stuck I removed starter thinking the starter drive was binding up but when tested it seemed fine.I ended up putting a new battery in it and finally got it to start and backed it off the trailer.I used the tractor a bit and it runs great and is full of oil but did have several hydraulic leaks so I shut it off and fixed most of the leaks and let it set a couple of days and now it acts like it is locked up again.Heres what I have done so far new battery,new starter,pulled spark plugs,jacked up rear end put it in gear turned wheels but the flywheel is not moving Itried a pry bar on the flywheel but cant get engine to move even with plugs out.and this is the second time this has happened it does have the T/A and it does work I am stumped at this time and could use suggestions it does have a 2001 IH loader on it.Sorry for the long post could the hydraulics be locked some how?
 
Well, right off the bat if you can't turn the engine over with a pry bar you can rule out battery and starter as the potential causes.

As for hydraulics locking the engine up, that would be very very unlikely. After two days even if something was completely screwed up and the system had somehow built pressure, that pressure would be long gone. The tractor is too old for things to be sealed up so tight the pressure would not bleed down.

Did you try to rotate the engine backwards with the pry bar at all?
 
(quoted from post at 10:14:32 09/11/20) Well, right off the bat if you can't turn the engine over with a pry bar you can rule out battery and starter as the potential causes.

As for hydraulics locking the engine up, that would be very very unlikely. After two days even if something was completely screwed up and the system had somehow built pressure, that pressure would be long gone. The tractor is too old for things to be sealed up so tight the pressure would not bleed down.

Did you try to rotate the engine backwards with the pry bar at all?

I know more questions, but we are not there so need to ask things we would do if there in person.

If you shift it into neutral will it roll free? Have you tried having someone push down the clutch peddle while trying to turn engine over with plugs out using a bar on the flywheel teeth?

To be honest I'm not familiar with this tractor/engine. So if this sounds dumb so be it, how hard to remove the hydraulic pump to be 100% sure it is not locking up.

If trying to turn over with a bar on the flywheel teeth does it turn even a slight amount? Try turning clockwise and also counter-clockwise.

Try seeing if you can pry the crankshaft back and fourth end-wise by prying on the flywheel or front pulley. Don't go crazy and break anything it should move pretty easy something like 15 thousands give or take a bit.
 
(quoted from post at 07:14:32 09/11/20) Well, right off the bat if you can't turn the engine over with a pry bar you can rule out battery and starter as the potential causes.

As for hydraulics locking the engine up, that would be very very unlikely. After two days even if something was completely screwed up and the system had somehow built pressure, that pressure would be long gone. The tractor is too old for things to be sealed up so tight the pressure would not bleed down.

Did you try to rotate the engine backwards with the pry bar at all?
I thought for sure that the engine would turn over with the plugs out and pry bar on the flywheel yes I did go both directions but nothing
 
Thanks for replying Ken I did Jack the rear of the tractor up and yes the wheels spin freely in neutral and also I put it in gear thinking I could turn the engine with the rear wheel but turning the wheel and engine still wont move even with all the plugs out and I've tried with and without the clutch I'm a fairly good mechanic but I've never seen anything like this because motor sounds good when it runs no smoke or noises
 
bought a cub and the engine turned over o k. filled with coolaant and the problem began. coolant was leaking into the cylinder and rusting the cylinder wall.
 
If it doesn't turn even a fraction of a degree, with the clutch blocked down, There is a major engine problem that isn't going to get better from the outside.
With no abnormal noise when shut down, I would look at a siezed piston, broken piston, or broken ring that is scoring a cylinder wall. These could easily lock up
and stop rotation. My diagnosis effort would be to use a fiber scope to look in the cylinders to see if any faults can be seen there. Next would be to remove
the oil pan to look for broken or discolored rotating parts. Next would be the valve cover, looking for bent.components (not likely) then pulling the head.. I
would also discuss the failure with the previous owner to get history, or some bucks returned. The lockup off the trailer is really troubling. Jim
 
(quoted from post at 09:23:44 09/11/20) If it doesn't turn even a fraction of a degree, with the clutch blocked down, There is a major engine problem that isn't going to get better from the outside.
With no abnormal noise when shut down, I would look at a siezed piston, broken piston, or broken ring that is scoring a cylinder wall. These could easily lock up
and stop rotation. My diagnosis effort would be to use a fiber scope to look in the cylinders to see if any faults can be seen there. Next would be to remove
the oil pan to look for broken or discolored rotating parts. Next would be the valve cover, looking for bent.components (not likely) then pulling the head.. I
would also discuss the failure with the previous owner to get history, or some bucks returned. The lockup off the trailer is really troubling. Jim
Actually it did it on the trailer as well this is the second time this has happened I dont really think its a major engine problem but I am going to camera the cylinders but I dont suspect they are too bad as there was no smoke whatsoever and the engine sounds good and I got it cheap enough so Im not worried about a refund
 
So I think the only way to access the flywheel on that tractor is to remove the starter, so you do have the starter
off? The reason I asks that you say you replaced the starter, I think there are several nose configurations for the
starters in that era of 6 cylinder IH tractors. Funny things in the starter drive to flywheel gear mesh have been
talked about on here in the past. If you are trying to turn the flywheel through the starter mounts hole disregard
this. Secondly, I would assume you would tell us if the oil looked milky. I wonder if there is a bunch of antifreeze
in the oil pan below the oil and it just locked up the bearings. You would think there would be some noise
associated with that. Other thing would be a valve dropping, but if it was just a normal engine shut off and then
you would think it would turn backwards. However, a TA can keep an engine from turning backwards. Blocking
the clutch down would eliminate that possibility.
 
(quoted from post at 11:31:30 09/11/20) Before you tear into it too far, have you checked the cables and connections? Any poor one even with a new battery will do that.
Yes even went with #1 welding cable new battery and new starter
 
Not familiar with 606 but was wondering if you have live PTO? Could that
be holding the engine? Or maybe clutch is stuck or rusty. Doesn't
exactly fit you description, just thinking out loud and maybe cause you
to think further.
Keep us updated.
Dave
 
I bought a tractor that you could pull to turn it over that was ok
then you couldn’t turn with crank. The gas in tank and motor
was bad. The varnish must have stuck the motor till I got the
bad gas out of it now it is fine.
 
if it has a pump mounted on the front of
the engine to run the loader. It may be
locked up. Or under pressure. Holding it in
place. Otherwise something is amiss with
the clutch im guessing. Does it look like
it has been apart recently? Could be
someone reassembled something wrong then
sold it to get rid of the headache.
 
(quoted from post at 21:07:35 09/11/20) if it has a pump mounted on the front of
the engine to run the loader. It may be
locked up. Or under pressure. Holding it in
place. Otherwise something is amiss with
the clutch im guessing. Does it look like
it has been apart recently? Could be
someone reassembled something wrong then
sold it to get rid of the headache.

Ok guys Thanks for all youre help and suggestions
I found the problem when I got ready to back the tractor off the trailer when I bought it I had it in 1st instead of reverse and it lurched forward and got up on the rail of my trailer and when it did it died.I then got off to assess the situation looked under the tractor and there was only one bolt holding the steering wishbone on and it had fell out and was not in good condition so I put a little longer one in but left it a little loose.Thats when the tractor first locked up but finally started.I used it a little bit then happened to remember the wishbone so I got three bolts a little longer that the stock one And put them in and its been locked up ever since.Well just so happens the farthest bolt is just under the flywheel of the tractor and when I tightened it up it was against the flywheel locking it up tight.The way I found it was to backtrack everything I had done to the tractor when I looked and saw the bolt u der the flywheel I new what had happened so hopefully this will help someone in future Sorry the post is long but wanted to explain what had happened.
Thanks for all the help and suggestions
Tractor runs like a top again.
 
By the way, BE CAREFUL! The circumstances that led to this engine lockup indicate that you are a novice tractor operator. Take it slow and easy, and THINK before you let out the clutch. Check the gear selection 2-3-4 times. You don't want to let out the clutch thinking it's in neutral when it's really in 3rd, and run someone over, or hit something important.
 
And put them in and its been locked up ever since.Well just so happens the farthest bolt is just under the flywheel of the tractor and when I tightened it up it was against the flywheel locking it up tight.

That's why not giving the people trying to help the full story is so important! If you had mentioned the problems you had tried to fix between the last time it ran and the first time it would not turn over there is a good chance someone who was familiar with the configuration of the tractor could have saved you hours of time and probably a bunch of money you spent on unneeded parts!

Just glad you were man enough to come back and say what the real problem was once it was running.
 

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