Bobcat 610 vh4d

[utahcoyotehunter]

I have a bobcat that i replaced the 5ish years ago and i had some trouble with the alignment of the distributor and the oil pump and i destroyed the coupling and have had it in storage since. well now i need to have it running and there are a few things that are not working on it. #1 I broke the distributor cap and haven't been able to find a correct replacement but i have purchesed one that looked real close when i purchased it. #2the alignment is still poor and it looks as though the lugs on the motor casting are too long and need to be ground down. #3 The starter starter free spins and doesn't engage as i work on it i may ask for help on the second and third issues. but for now can any one help me with getting the correct distributor cap. Thanks in advance.

 

[6brnorma]

There were three different distributors used on the VH4D….Prestolite IAD-6004-2P (Engine s/n 6164220 & below), Colt (Engine s/n 6164221 & above) and a solid state (Engine s/n 6193828 & above). The Prestolite is Bobcat pt#870925, the Colt is Bobcat pt#6634242…..all were available through NAPA at one time but I have only used the solid state for so many years now that I don't have pt numbers and don't know if they still carry them.

 

[alchemysa]

You don't need to grind the coupling. Each half of the coupling is in 2 pieces. You can adjust the position of the coupling on the shafts so that there is a good gap. But you'll need to remove the hydro pump in order to do this as you have to get to the screws in the faces of the couplings (under the rubber thingy).
As I recall, alignment of the pump is done by adjusting the position of the pump bracket.
Its all a bit fiddly but its essential to get it right.

 

[utahcoyotehunter]

You don't need to grind the coupling. Each half of the coupling is in 2 pieces. You can adjust the position of the coupling on the shafts so that there is a good gap. But you'll need to remove the hydro pump in order to do this as you have to get to the screws in the faces of the couplings (under the rubber thingy).
As I recall, alignment of the pump is done by adjusting the position of the pump bracket.
Its all a bit fiddly but its essential to get it right.

Gentlemen, Thank you for your response I now have a distributor cap coming. As far as the pump alignment the coupling is fine and it is not a mater of moving the bracket around and tightening the nuts down. The new engine casting is not in the correct place it is off by about .062" in both directions. It is doable but a pain that I cant just bolt it on like I could on the old engine.

 

[utahcoyotehunter]

Gentlemen, Thank you for your response I now have a distributor cap coming. As far as the pump alignment the coupling is fine and it is not a mater of moving the bracket around and tightening the nuts down. The new engine casting is not in the correct place it is off by about .062" in both directions. It is doable but a pain that I cant just bolt it on like I could on the old engine.

The beast lives. Today I got the the old thing running for the first time in 6-8 years the engine purred like a kitten. I backed it out of the garage and turned it 90 degrees and took it over to the gravel drive that goes to down the side yard. Moving forward the left drive is slipping and not pulling at all. The right is pulling fine in forward and in reverse. due to the poor left drive i sank the right side through the gravel into mud that i didn't even know that existed. Tomorrow evening I hope to look at the clutches and see if it is a simple adjustment. Thanks for the help and support.