1995 751 PUMP ISSUES

[FSHNROD]

Hello and thanks for having such a informative forum. I have read and fixxed many things based on my reads from here. I have a 751 1995 bobcat with the puke-it motor. The other day the left control started whining real bad so I stopped checked fluid and all was filled correctly. By the time I got it to park 75 yards away the left control completley went away and both pedals locked up. Bobcat has the machine now and says the pump is blown apart and that there was so much metal in the system it could not be cleaned out and was not worth fixing? Now at the same time they are wanting to sell me a 751 that they just happen to have in there that has a blown motor and swap my motor ( 200 hrs on rebuild) with that machine. Their price on the blown 751 is $2500.00 I have found a hydro motor for $599.00 . My question is I guess ..... Is this pump that hard to change and system hard to clean that would make my machine "just scrap with a good motor" or is their alternatives to have it repaired eliminating Bobcat ? Thanks for any help- Rod

 

[Tazza]

I believe you could fix it, you'd have to pretty much pull out all the hydraulic components and lines though.
The pump would run you about 1,200 to replace the rotating groups and wear plates. The hydraulic pump may be damaged, that is about 600 i think.
The price you you got for the other machine seems good to me if you can swap the engine over your self. I think you could have more into it when you replaced the damaged parts. It depends on how far the metal got though.

 

[FSHNROD]

I believe you could fix it, you'd have to pretty much pull out all the hydraulic components and lines though.
The pump would run you about 1,200 to replace the rotating groups and wear plates. The hydraulic pump may be damaged, that is about 600 i think.
The price you you got for the other machine seems good to me if you can swap the engine over your self. I think you could have more into it when you replaced the damaged parts. It depends on how far the metal got though.

Ok well I got it back and they have it apart. ( I just payed them and picked it up) The pumps that control the left side are apart and the ones that control right are all still together. It looks like two pumps ? One with some brass things on a wobble and one that has some teeth in it that are broken. So I assume this is the hydrostatic pump and the hydro pump ? I found a John Deer dealer who can hook it up to a caddy and clean the fluid they say. If I do that does the system still need to come apart?

 

[Tazza]

Ok well I got it back and they have it apart. ( I just payed them and picked it up) The pumps that control the left side are apart and the ones that control right are all still together. It looks like two pumps ? One with some brass things on a wobble and one that has some teeth in it that are broken. So I assume this is the hydrostatic pump and the hydro pump ? I found a John Deer dealer who can hook it up to a caddy and clean the fluid they say. If I do that does the system still need to come apart?

That is your hydrostatic pump. The rotating group has 8-10 little pistons in it with shoes that wobble on the end. This and the plate they run on are the parts that do the bulk of the work.
I guess that setup may do the job, but you really need for all the components to run to get the fluid moving. That included the lift and tilt rams and the drive motors. Even inside the pumps will need cleaning out.
I personally would rather pull it all down then you know it's totally clean. I take tube lines off and spray the insides with solvent and push in small pieces of foam. Then using a compressor, blow the foam out the lines, this should pickup and push out any particles that may be stuck in there.

 

[FSHNROD]

That is your hydrostatic pump. The rotating group has 8-10 little pistons in it with shoes that wobble on the end. This and the plate they run on are the parts that do the bulk of the work.
I guess that setup may do the job, but you really need for all the components to run to get the fluid moving. That included the lift and tilt rams and the drive motors. Even inside the pumps will need cleaning out.
I personally would rather pull it all down then you know it's totally clean. I take tube lines off and spray the insides with solvent and push in small pieces of foam. Then using a compressor, blow the foam out the lines, this should pickup and push out any particles that may be stuck in there.

Thank You very much