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when this tractor is a rockin', don't come a knockin

D

Dan-IA

Member
My cockshutt is stuck. We talked about this a while ago. I pulled the plugs to rule out hydraulic lock and filled the cylinders with ATF to help soak 'em loose.

Now I know not to abuse the crankshaft pulley trying to roll it over like I did on the F20. And I don't have a spare battery handy to use the starter (and the boss here thinks that's likely to ruin the starter) so I'm thinking about trying the 'rocking' method. Do I need to jack up the tractor on a rear wheel to do this, or do I leave it on the ground? I put it in 4th gear and I can rock it hard enough to get some weird clacking noises happening, but I'm not sure that's not just backlash in the rear end.
 
Put it in road gear and get two people to have a go at the top of the rear tires. the starter will not be hurt if you just bump it, not hold it on!
setting the rear tires up on a RR tie so the tractor wants to fall off frontwards (in high gear) and bumping the starter is pretty powerful. Bending con rods is possible if the pistons in any cylinder are close to up. JimN
 
You will not hurt the starter unless you hold the starter button down for say more then 5 sec. Short fast taps works well and does not hurt the starter or the engine in any way. BTDT many many many times
Hobby farm
 
Dan,
I have had good luck freeing up stuck tractor motors by booming the tractor down on my flatbed trailer. Then removing the oil pan, take a little bottle jack cribbed up off the floor of the trailer to one of the counter balances on the crank shaft. Jack it up slowly till its tight.
I have had some come loose at this stage, Some I had to tap on the counter balances that's not being jacked on with a bfh.
One tractor was so stuck that I removed the the rod caps on the rods that the pressure was pushing down against so the pressure was put to the rod and not the rod cap. It came loose too but required the extra steps. If you don't boom it down it will just lift the front of the tractor off the ground.
Make sure your valves are not stuck before you try this or you will bent a push rod for sure.
Good luck!
 
Hi Dan-IA. Check out the KING OF OBSOLETEs web site ! look for KINGS bar starter and see if can help. Im not sure how your starter is set up, but Im sure if you can build something like he did,it will be very effective. It cant hurt your clutch,the teeth on the fly wheel,or crank shaft pulley. GOOD LUCK!! hope it works
 
It's a 30. Coop E3 technically, but the difference is just paint. I know on a 20 you can completely R&R the clutch without splitting or pulling the engine, no such luck on the 30.
 
What do you mean by 'booming'? I don't have equipment big enough to pick up a tractor and drop it like a kid's toy.
 
Alternately Dad handed me half a 540 PTO shaft with a U-joint. He says turn it to 90 degrees at the U-joint so it won't flex, engage the PTO lever and rock the engine with that. Shaft is about 2 feet long, so I'd have a fair amount of leverage here. Think this might work?
 
Okay so from this I get that both tires should be on the ground. I like that idea because I was mostly concerned with work losses with the spinning inside the differential.
 
Dan.
Chain it down to a trailer as if you was going to tow it down the road. Chain booms we call it booming, or booming down.
 
Id have to agree with Traditional Farmer on this one Ive always had better luck with a pinch bar on the ring gear than rocking the machine, just seem like I get a lot more leverage. I also think bumping the starter while youve got pressure on the ring gear is usually a big help. (a 3rd hand could be required)
And lastly if your working on the same side of the machine as the spark plug holes throw a tarp or something over the holes cause when she comes loose the oil comes out in a hurry and can cover everything in the area in a blink of the eye.
Good Luck......OCG
 
I had a CO-OP E3 that sat in a field for 30 years
The pistons were rusted solid to the sleeves Made
a sleeve pusher, and the sleeve and piston pop right out together. The pictures and explanation
are in Help Identify.
id12071.jpg

id12072.jpg
 
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