mcprp
Senior Member
heres the shaft , unbelievable that all the other gears are good
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case450 final drive
- Thread starter mcprp
- Start date
mcprp
Senior Member
the guy that owned this thing before should have been shot
alrman
Senior Member
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- QLD Australia
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- Diesel Fitter;Small Business Owner;Cleaner
Unfortunately, with older machines, many people seem to feel they don't deserve to have money spent on them.
That seal looks like the bevel gear was not running true. Were the bearings OK?
Luckily those bull pinion gears are separate to the bevel gear on those early models.
That seal looks like the bevel gear was not running true. Were the bearings OK?
Luckily those bull pinion gears are separate to the bevel gear on those early models.
mcprp
Senior Member
all bearings seem good . no slop , smooth , no wear . what did you notice about the seal . I don't see anything unusual about it . other than it was not as flexible as it should be and you
could tell it was just old and ready for new . how about that upper pinion shaft though . I still don't know how that could look so bad and all the other gears that joined it are perfect . amazing to me . I had a hell of a time getting the spanner nut off though , the threads were nulled on the nut not the shaft and could only turn it with a hammer and chisel 1/4 inch every three swings , what a bitch that was . that seal , you probably saw where I tried to tap it out the wrong way and bunt it a little
mcprp
Senior Member
can you tell me what a welch plug is and what is its purpose ?
mcprp
Senior Member
can you tell me what a welch plug is and what is its purpose ?Are these tools absolutely necessary to do this job or can they be improvised some how . I obviously don't have special tool or parallels
mcprp
Senior Member
can these tools be improvised
alrman
Senior Member
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Other names for a Welsh plug are expansion or casting plug. Commonly used in engine blocks & cylinder heads.
Re those tools,
the sliding parallels, you can use T gauge & micrometer.
The tool for the pinion depth, cannot really be improvised, however a machinist can fabricate one if necessary.
....... are you thinking of playing with or replacing the pinion shaft inside the transmission now???
Re those tools,
the sliding parallels, you can use T gauge & micrometer.
The tool for the pinion depth, cannot really be improvised, however a machinist can fabricate one if necessary.
....... are you thinking of playing with or replacing the pinion shaft inside the transmission now???
mcprp
Senior Member
no but since I took it apart, I thought that I was supposed to do these things to make sure its put back right and adjusted properly . I guess I just over thought it .
mcprp
Senior Member
once you pull all that stuff off , that pinion shaft inside the transmission just falls back . nothing holds it in until you put the shims and the shaft housing and bearing back on .
mcprp
Senior Member
well Arman , I think I'm over my head in it now, UDATE .. I put everything back together and everything went very well besides waiting on parts . I was never able to fix the right break pedal adjustment . did everything I learned but the pedal still goes down a lot farther and doesn't work good like the left one . I was running her today and after it warmed up it seemed to work pretty good except for the pulling to the left . putting the left transmission lever on high and the left on low keep her moving more straight for what ever reason . after running it for awhile I noticed trans mission fluid coming from the control valve . I should have taken the time to see exactly where it was coming from but it was getting late . I just know now that I have a leaking control valve . I'm not sure I can handle this one . I want to bring it to the case dealer so they can put the flow meter on it and check it out but they are outrageously expensive . flow meter check alone is 400.00 and just to tell me what wrong . I keep praying that their isn't anything internally wrong with the tranny as I know that will be thousands of dollars . I guess ill have to bring it to them when I have the money and then decide if I want to dump it for what I can get . I guess the only question I have now is , is it hard to pull the control valve and rebuild it or maybe im better off just buying a good used one , either way is it a hard job ? thanks for your time .
alrman
Senior Member
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Remove the seat, check your transmission oil level, top up if necessary, run the engine at idle.
Click through all the gears & look at the transmission valve to see where it is leaking - likely it is just a hose.
A flow meter test won't fix your leak.....
Click through all the gears & look at the transmission valve to see where it is leaking - likely it is just a hose.
A flow meter test won't fix your leak.....
mcprp
Senior Member
ok , did pull the seat and the oil seemed to be coming from the valve its self . im not sure yet but I didn't see a leaking hose , ill check again , it looked to me like it might be one of the piston seals but what do I know . after looking at the transmission color diagram it looks like the breaks are tied into the control valve . could this be my whole problem with the right break and the veering to the left … ?
alrman
Senior Member
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On a 450, Brakes & the transmission control valve are rarely the cause of the tracking issue you are describing - but you never know 
Considering the age of the machine ..... & the lack of care it has been shown in the past....... I would think it will involve going deep inside the transmission to fix your problem.
You may need some serious diagnostic help to figure it out.
Considering the age of the machine ..... & the lack of care it has been shown in the past....... I would think it will involve going deep inside the transmission to fix your problem.
You may need some serious diagnostic help to figure it out.
mcprp
Senior Member
mcprp
Senior Member
you were RIGHT ! after further investigation it was only a loose fitting . everything is fine now except for the pulling to the left . going to bring it to the local case equipment repair near me . thanks again for all your help .
Coy Lancaster
Senior Member
Have you checked your track tension? Also have you checked your shift linkage making sure it is correct?
Nice buck by the way.
Nice buck by the way.
mcprp
Senior Member
track tension is good , I don't know how to check shift linkage . I don't think I have low gear on the right side . would that be a clutch . I got to have it checked out . its running good but it a pain to keep having to adjust the steering with the brake . also the right brake is messed up . doesn't work well at all and the pedal goes way down .