New bobcat owner needs help identifing model

[RPW]

Hello all. I'm a new (used) bobcat owner and need some help identifing this model. First a little history. I purchased this machine at an auction recently and was told that it did run but rough. I knew I was going to have to work on it before I could use it. The motor turns over but does not start (no sputter either). Originally when the motor was cranked the fuel pump dumped fuel through the air intake (stuck float). Have checked the old mechanical fuel pump and confirmed it is bad. Pulled the carburator and cleaned and adjusted float (rebuild kit on order) to some basic info I found on the web. This machine has been pretty much stripped i.e. no instrument cluster just a switch and push button for starter. The data plate is missing but from what I can find it appears that the chassis is a 742 but the motor (ford) is probably from a 632 or 722 (not sure). This weekend I am going to try and see if it has any spark. I suspect not as there isn't a ballast resistor inline with the coil and I believe the points are shot. The other information I have gleaned from the web is that this motor is basically the same as what was used in a pinto or fiesta and may have origins in Europe. I've included a link to some pictures. Again I didn't pay much for this machine.

Here is the link to my Photobucket albumn: Image hosting, free photo sharing & video sharing at Photobucket

Thanks Richard.

 

[RPW]

I hope somebody can help in the history of these machines. A bit more on what I've accomplished. I found that I didn't have any spark so I've replaced the coil, points and added a ballast resistor. Now I've got spark. I'm still waiting on the carb rebuild kit.

Thanks, Richard

 

[chvet73]

Motor does appear to be the Ford 1.6L. They are similar to a Pinto but had more durable valves.
I have a 722 and that is definetly not a 722 chassis. I got mine in pieces and rebuilt the engine with parts from an Industrial Ford dealer. Got a distributor from a Pinto. Replaced the bad fuel pump with a cheap electric. I found a new carb on the internet.
After all repairs mine has been great.
Hope this info helps some.

 

[RPW]

Thanks, I'm in the same thinking that this started life as a 742 but probably the engine died and they used what they could get their hands on. On the down side it means about 4 - 6 HP less but probably won't be a problem. I've gotten new points from O'reilly's for a 73 pinto, a new coil, ballast resistor from TSC and new plugs. At least now I've got spark. I'll have the carb rebuild kit plus a few other parts tomorrow from the Bobcat dealer. After I get it off the trailer and in my driveway I'll proceed to change hydraulic oil as no telling how long it's been in there and I'm wary because the hydralic tank cap is a piece of plastic held on by a hose clamp. I'll also be creating a complete wiring harness as there isn't one. So I have my work cut out for myself. I plan on posting some before and after pictures.

BTW; one question has been bugging me. Can you move a skid steer without the engine running? What I've been told that if you hold the steering levers in the direction of desired movement you can move it. Hopefully someone can enlighten me.

 

[dfkrug]

Can you move a skid steer without the engine running? What I've been told that if you hold the steering levers in the direction of desired movement you can move it. Hopefully someone can enlighten me.

You are not supposed to move a non-running SS by forcing the
wheels to spin. The hyd wheel motors depend on oil for lubrication,
as well as the variable piston pump. The latter uses a charge pump to
keep oil flowing when the engine is turning but the wheels stopped.
If you actuate the fwd levers while the SS is pulled fwd, that will reduce
the braking action of the wheel motors while the SS is off. Not a
good practice, but for a very short distance you may not cause much
damage. I imagine the operator's manual has something to say about
this.

My local rental yard moves dead SS's with a very large forklift.

BTW, Bobcat has some good historical info on old machines on their website:
Models - Bobcat Company

 

[RPW]

Good info. What I'm trying to do is to move the SS off of my trailer so I can work on it more conveniently. We used a large wheel loader to sling the SS on to my trailer. I'm hoping (weather permitting) to get it running shortly so I don't need to drag it.

 

[dfkrug]

I'm hoping (weather permitting) to get it running shortly so I don't need to drag it.

This was (is) an issue I have in my quest for a skidsteer project machine.
I asked around a lot about moving dead units.

It is interesting that the simplicity of a SS, versus an HST tractor, is also
its disadvantage. With a gearbox (HST tractors have this), you can
disconnect the drive wheels from the HST motor. With SS's, you can't.

 

[J_J]

In all the Power-Trac, the variable speed pumps have a screw that is turned to open the relief valve, and then the machine can be towed for a short distance. All wheels have hyd motors, and the motors are acting as pumps. By opening the relief valves, you are letting the fluid by-pass from one side to the other side. If the pump can be relieved, and let the fluid flow from input to output, you should be able to move the machine slowly.

Other machines may have something similar.

If your machine will move down a hill, or a raised trailer without power, then let it roll off by it self.

 

[RPW]

Thanks. I was suppose to get my parts on Friday but due to a miscommunication between myself and the dealer they thought I wanted them to "work" on my machine and not just drop off the parts. Clarified that today and will have the parts tomorrow. So with any luck I should have a running (maybe not running well) by this weekend. If that's the case I'll have it in my driveway and can start on the rest of the service,restore, repair of this machine. My biggest fear is that the hydraulic oil is contaminated and has damaged the pumps. I will be completely flushing the hydraulic system when I can get it in the driveway. I've been cleaning out my garage and finding parts I can use "gauges, switches and lights".

 

[J_J]

In all the Power-Trac, the variable speed pumps have a screw that is turned to open the relief valve, and then the machine can be towed for a short distance. All wheels have hyd motors, and the motors are acting as pumps. By opening the relief valves, you are letting the fluid by-pass from one side to the other side. If the pump can be relieved, and let the fluid flow from input to output, you should be able to move the machine slowly.

Other machines may have something similar.

If your machine will move down a hill, or a raised trailer without power, then let it roll off by it self.

Is your SS driven by hyd motors? If so, read below.

Another suggestion that might work in moving a dead hyd machine. Since most pump/valve have a relief valve for relief pressure, if you were to remove the relief valve, would that let the fluid moved by the wheel motors go back to tank, or if closed system, fluid would go from input to output.

Maybe jump the hyd motor with a short hose from input to output, and let the fluid recirculate in the motor for a short distance.

My Case SS has chain drive as the final drive. If yours has chain, just remove a link and and it will be free wheeling.