I started getting rid of a lot of trans oil and noticed it running out the bottom. Finally traced to to the shaft on top that shifts from forward to reverse. It has a lot of sideways motion like a bearing,bushing or seal being out. Anyone know which it is and can it be replaced very easily? Thanks for any help
Two things that might help getting a more accurate answer. First and most important is a machine serial number, just an example: And this list is only down to the level of "Prefix" and each one of those could have several breakdowns depending on exact serial number! Second thing that would help if possible is a picture of the point of the leak.
my 6D shifter shafts are worn exactly like yours with the same effect. when the trans comes out for an OH then these bits will all get fixed up like new. kind of like the old detroit motors, when they leak so bad you can't stand it then it is time for a major.
It's a 10K7470. Hard to get a pic as the brake rods pass directly over it. It's on the left side, near the front , top. The shaft comes straight up and it is the forward/reverse selector. Having trouble locating it in the book. I can't tell if its a bearing, bushing or what but whatever it is it's missing.
My last couple of days I lost 5-7 gal. /day. Best I can tell it's all coming out at that spot.
Could it be the part in the red circle in this picture? Cat calls ti a "bearing" but most likely is just a brass bushing. The numbers in the red box show the 8H8175 which would be the original part number and the 376-3636 would be what Cat calls the "Classic" part another name for an aftermarket part in a Cat box. Seems like there should be a seal or maybe just an oring there. Need to dig a little deeper to find the actual linkage. Note if the bearing is that worn the shaft might be worn pretty good to so might want to see about one of them.
Here's the diagram in my parts book for that s/n........(that's a top view of the trans valve body and shift linkage.) I'd pull the top cover on the trans and you'll be able to see what's going on if it's a loose bushing/worn shaft/bad seal.
Your a little ahead of me here is what I'm posting right now: Not sure why they are calling it a Governor control shaft, but this also shows a "Classic" part number. Now we have to find the external linkage to see if they show a oring/seal to go with the shaft and bearing. If this is like most of the old machines I worked on there will be a hard to remove snap ring holding a washer over the oring seal, best to order a new one as they often get destroyed coming off.
Here's where SIS is not the best for older equipment. In the picture below I have circled the lever that I believe you are having the leak with and it is not a real clear image but I think that it shows just a washer under the lever but no oring or seal or even a snap ring. You may have a better picture in your parts book. If it was mine I would get the "Classic" shaft and bearing and a new cover gasket and clean things up real good and replace both parts.
thanks for the help guys! We cleaned it up where we could get at it and turns out a brass bushing is worn almost all the way through one side and above that is an oil seal. We also found a bigger oil leak underneath , the hose coming from the trans filter.
Dang things just don't last for ever! Wonder how many times it took shifting forwards to reverse and back again to wear it out? I was wondering last night about you saying you had lost 5-7 gallons of oil, did not seem like that much could come out of that spot no matter how worn the bushing was, glad you found the "real leak". Shifting should feel much better too!
glad you found the other leak, most likely it was the major contributor. put two clamps on each end of the hose coming from the filter, btw.