450 CASE TORQUE CONVERTER

Phil H

Member
Just finished installing a completely rebuilt 207 diesel eng in my 450 track hoe. Started right up ran perfect, checked for leaks
looked great except hyd. oil running out of the torque converter dust cover plate where the bell housing and eng. meet. Looked at
the book and looks like the only thing that it can be is a bad seal on the output shaft. I have never rebuilt a torque converter,
and looks like there are no rebuild kits available. I can get the different parts, bearings, seals, etc. A rebuilt converter is
around $3000.00 with $1000.00 refundable for the old core. Has any one had any experience rebuilding one, does't look that
complicated from the parts book. Probably can rebuild the old one for around $500 to $600. Now just have to pull the engine
AGAIN!!!!!!!! Wish I had thought of rebuilding the converter before I put everything back together #$@@@&&&*****!!!
Any ideas on rebuild or just buying one already rebuilt? thanks....Phil
 
(quoted from post at 19:16:52 03/26/18) Just finished installing a completely rebuilt 207 diesel eng in my 450 track hoe. Started right up ran perfect, checked for leaks
looked great except hyd. oil running out of the torque converter dust cover plate where the bell housing and eng. meet. Looked at
the book and looks like the only thing that it can be is a bad seal on the output shaft. I have never rebuilt a torque converter,
and looks like there are no rebuild kits available. I can get the different parts, bearings, seals, etc. A rebuilt converter is
around $3000.00 with $1000.00 refundable for the old core. Has any one had any experience rebuilding one, does't look that
complicated from the parts book. Probably can rebuild the old one for around $500 to $600. Now just have to pull the engine
AGAIN!!!!!!!! Wish I had thought of rebuilding the converter before I put everything back together #$@@@&&&*****!!!
Any ideas on rebuild or just buying one already rebuilt? thanks....Phil
You do not have to pull the engine , remove the starter and turn the fly wheel with a screw driver to remove the pressure plate from the fly wheel one bolt at a time , of course remove the driveshaft first .
 
You must be careful removing the torque converter , I believe it weights about 120 lbs. and does not have a lifting eye , I remove my torque from the bottom , under the tractor , used a strap around housing , must be careful it will tilt and slide out , I will install a lifting eye on mine next time I remove a torque , I have three 450's . Do not be in a rush and be careful , watch your fingers and don't remove it by yourself. The torque is a tight fit going out the bottom , has to be turned side ways to get out , tight fit .It will come out with out pulling the engine . I remove my torque converter with my tractor sitting on a cross tie under each track to have working room and to slide the torque from under the tractor .
 
thanks Bill, I don't know just what is the best way. I think I figured out what went wrong with the seal. Before I pulled the tired engine out I noticed the converter pressure was real slow to come up. But it would eventually work, I think since I replaced the engine with a NEW charge pump, the pressure was greater than the old pump, and that is what caused the seal to fail. I think I will just get a rebuilt converter, and just get it done. A lesson learned the hard way.
 

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