Recent content by danman

Thanks for all the help, I checked pressure today it was around 95 psi. Oil is leaking at the pintle arm only when fully forward. my pump has taper bearings,but on the outside cover plates there is a plastic shim it looks like a gasket at first glance.Maybe I can take the shim out of each side I...

Tazza, Which sending unit? Is it on top of the pump the one with two wires ? I found the leak today It is coming from the side seal only when I push the lever full forward.It does not leak in reverse. Is it possible that I am forcing the shaft past its rotation? Also wondering if mabe the taper...

langoley, Do you have the piston pumps? If so would you sell them?

I will send you pics this weekend

If anyone is interested I repowered my bobcat after doing a complete overhaul ,new paint,tires and just installed a high flow second set of aux lines . It was original with a mitsu 32hp gas that was blown up. I found an izuzu C223 diesel, machined the flywheel to fit and installed an external...

I did get the seal from Bobcat .My next step will be to check the charge pressure.

I talked to a bobcat dealer today .He thought it was unlikely the rotating group was blowing by. They never had a failure like that. But if the U-joint happens to go out while running it has a high chance of bending the input shaft on the pump.The other thing they have happen is the 4 steel oil...

So oil would be blowing past the pistons? That would explain why I had to replace the o-ring and seal plate on that side. But they were leaking with the machine off. Is there anyway to verify this and any ideas where to get parts?

Great web site. It has helped alot. Here goes my new problem. 4000 hrs on my machine noticed oil on the floor after machine was shut off for a couple of days. seemed real excessive. I used a flexible video cam and verified oil was leaking from rear seal on input shaft with the machine off. Did...

good info on this post . I have the same machine with oil coming out of the input shaft seal. I pulled everything Replace seal and had to replace both seals on the other 2 shafts. I also opted to replace all hydraulic hoses at the same time. I was able to verify oil leaking from seal with a...

I have a 642b that had this problem. It would work under a small load as soon you would put the motor under more load it woud feel like it kicked out of gear. It did make a noise as if oil was bypassing. Anyway I ordered a new seal kit it was around 40.00 and that solved the problem.I also found...

Thanks for the quick response there seems to be more power in reverse because I can steer much better but it is hard to tell because only using the steering and not pushing with the bucket. Can the reliefs be cleaned ? is there anybody that has directions on taking them out?

What a great forum I have been reading for 6 months or so lots of good info. I have a 642B that I rebuilt from the ground up original a gas motor installed an izuzu diesel in. approx 3000 hrs. on the machine. I will post some photos later. I noticed that the right drive side seems to be weak or...