M610 Questions

[drider77]

Hey guys, new here and new to bobcats. I recently got my hands on a M610 for cheap, but it has no motor. I have found several wisconsin motors to buy, but I am having a hard time finding out if they will work or not. They question I have is, the motors have a generator/alternator where the hydraulic pump should be. Are the parts hard to find to change that over? Also I need to find out if the engine needs to have a tapered crank or a straight shaft crank for the pulley. I went down to my local bobcat dealer, and they said the pulley is still available (700 bucks!!!) but he couldn't tell me if it was tapered or straight. Also where is there a good source for used parts for these things? Thanks guys.

 

[OldMachinist]

The Wisconsin engine in the 610 had a tapered end on the crankshaft. You might want to have look at the conversion kit that Small Engine Warehouse sells for the 610 it says it contains the pulleys needed. Plus you would have a modern engine that parts are readily available for. http://www.smallenginewarehouse.com/RepowerItems.asp?Brand=Bobcat&Model=610

 

[drider77]

The Wisconsin engine in the 610 had a tapered end on the crankshaft. You might want to have look at the conversion kit that Small Engine Warehouse sells for the 610 it says it contains the pulleys needed. Plus you would have a modern engine that parts are readily available for. http://www.smallenginewarehouse.com/RepowerItems.asp?Brand=Bobcat&Model=610

Hmm thats kinds disappointing. The motors I can buy right now have straight shafts on them. Has anybody ever put just a non adjustable pulley on instead of the variable drive pulley? I would think it would be fairly easy to find a pulley for a straight shaft. I have looked into the vanguard motor, but that is more money then I want to spend. I was hoping to get it running for 6-700 bucks. The guy who has the motors wants 250 bucks for a good running one. Which sounds good to me. At this point I think i am still going to try and find a wisconsin to put in it.

 

[6brnorma]

Hmm thats kinds disappointing. The motors I can buy right now have straight shafts on them. Has anybody ever put just a non adjustable pulley on instead of the variable drive pulley? I would think it would be fairly easy to find a pulley for a straight shaft. I have looked into the vanguard motor, but that is more money then I want to spend. I was hoping to get it running for 6-700 bucks. The guy who has the motors wants 250 bucks for a good running one. Which sounds good to me. At this point I think i am still going to try and find a wisconsin to put in it.

drider......I'll address what I can. Because I'm commercial, I never cut corners on our machines but I would be very surprised if you do this for $700. The pulley does require a tapered shaft.....there were two that I know of, a long and short taper......you need the short taper. A now retired machinist I used years ago would take the long straight shaft cranks, weld the key way, straighten the shaft and cut the bobcat taper for me but, bobcat had sent him specs on two short tapers, each with different angles of taper. I have never seen or known what the application for the other one was. The entire variable speed sheave assembly (complete and new) is about $700 from Bobcat....you can find the parts on e-bay (or other sources) with some patience and knowledge and save a few dollars that way. If you are going to go with a Wisconsin engine.......keep in mind that if you go with anything but an engine spec'ed out for a bobcat you will have problems. You didn't mention what all parts you have so I'll list just a few. The bobcat engine has a distributor assembly with an output shaft to operate the hydro pump, idler pulley run on taper roller bearings, hardened crank gear and (I believe) hardened idler gear (all different from the engine you are looking at). You will need hydro pump, bracket, some type of 'love joy' connector and hydro connectors to be standard. I can't address the vanguard engine......no experience with it. Other then updated electrical, fuel pumps and oil filters.....I'm a big fan of standard but I realize, others with lots more knowledge make other things work.

 

[drider77]

drider......I'll address what I can. Because I'm commercial, I never cut corners on our machines but I would be very surprised if you do this for $700. The pulley does require a tapered shaft.....there were two that I know of, a long and short taper......you need the short taper. A now retired machinist I used years ago would take the long straight shaft cranks, weld the key way, straighten the shaft and cut the bobcat taper for me but, bobcat had sent him specs on two short tapers, each with different angles of taper. I have never seen or known what the application for the other one was. The entire variable speed sheave assembly (complete and new) is about $700 from Bobcat....you can find the parts on e-bay (or other sources) with some patience and knowledge and save a few dollars that way. If you are going to go with a Wisconsin engine.......keep in mind that if you go with anything but an engine spec'ed out for a bobcat you will have problems. You didn't mention what all parts you have so I'll list just a few. The bobcat engine has a distributor assembly with an output shaft to operate the hydro pump, idler pulley run on taper roller bearings, hardened crank gear and (I believe) hardened idler gear (all different from the engine you are looking at). You will need hydro pump, bracket, some type of 'love joy' connector and hydro connectors to be standard. I can't address the vanguard engine......no experience with it. Other then updated electrical, fuel pumps and oil filters.....I'm a big fan of standard but I realize, others with lots more knowledge make other things work.

Well that is pretty disappointing to hear. I am having a very hard time finding out definite information about the engine. I called Wisconsin, but they refereed me to one of their dealers. As far as he knew there was nothing special about the Bobcat Wisconsin other then they had a tapered shaft. Internally he thought they were all the same. So this is the first I have heard about different gears and what not. I knew the bobcat Wisconsin had a different distributor set up, but from what I could gather it was a bolt on thing. I also called bobcat but they could tell me nothing about the motor. They couldn't even tell me if it had a tapered shaft or not. Well maybe I will just keep my eyes out for a bobcat engine, and also for another 30 ish HP motor I could shove in it. I just cant believe these things have become so scarce. I would have thought there would be quite a few of them out and about.

 

[6brnorma]

Well that is pretty disappointing to hear. I am having a very hard time finding out definite information about the engine. I called Wisconsin, but they refereed me to one of their dealers. As far as he knew there was nothing special about the Bobcat Wisconsin other then they had a tapered shaft. Internally he thought they were all the same. So this is the first I have heard about different gears and what not. I knew the bobcat Wisconsin had a different distributor set up, but from what I could gather it was a bolt on thing. I also called bobcat but they could tell me nothing about the motor. They couldn't even tell me if it had a tapered shaft or not. Well maybe I will just keep my eyes out for a bobcat engine, and also for another 30 ish HP motor I could shove in it. I just cant believe these things have become so scarce. I would have thought there would be quite a few of them out and about.

Sorry about the news....... Were I in your shoes (depending on your capabilities), after looking at the link provided by OldMachinist, I would give his advice some serious thought.....especially if I had only one machine and it was just for home use. The Wisconsin VH4D is not a cheap engine to rebuild or buy. I spec'ed one out new a couple of years ago so I think they can still be special ordered.....if you like. You don't mention where you are located in your profile so it's a little hard to give you any advice.

 

[mrdeere1959]

Sorry about the news....... Were I in your shoes (depending on your capabilities), after looking at the link provided by OldMachinist, I would give his advice some serious thought.....especially if I had only one machine and it was just for home use. The Wisconsin VH4D is not a cheap engine to rebuild or buy. I spec'ed one out new a couple of years ago so I think they can still be special ordered.....if you like. You don't mention where you are located in your profile so it's a little hard to give you any advice.

$3808.80 for a reman from bobcat

 

[drider77]

$3808.80 for a reman from bobcat

I am in Southern Oregon. Well I guess this project will probably get put on the back burner for a while. I was able to get my hands on a service manual and it looks like they made sheaves for tapered and straight shafts. However It was not clear what sheave went with what motor.

 

[drider77]

I am in Southern Oregon. Well I guess this project will probably get put on the back burner for a while. I was able to get my hands on a service manual and it looks like they made sheaves for tapered and straight shafts. However It was not clear what sheave went with what motor.

Anybody know if there are any generic variable drive sheaves that may work. For some reason, my guess is that Bobcat sourced the sheave instead of making it in house. If that is the case somebody could still be making it, or making something that could work.

 

[oldreliable]

Anybody know if there are any generic variable drive sheaves that may work. For some reason, my guess is that Bobcat sourced the sheave instead of making it in house. If that is the case somebody could still be making it, or making something that could work.

I just replaced the drive sheave on my 500. There were 2 choices of sheaves from the dealer: straight shaft or tapered shaft. My 23 hp Kohler is a straight shaft and is 1.5 in diameter. I do know that that wisconsins had a taperd shaft but dont have any specs on it. Good luck finding a source other than Bobcat for a sheave; I'd been looking for the past 15 years till I finally broke down and bought the one from the dealer. I'm glad I did, as it is an upgraded version and is designed way better than the original. As for repowering, we put a new kohler in ours in 1992 and haven't had any serious issues with it. Kohler also has 30+ hp v twins

 

[oldreliable]

Most of the repower engines like kohler or vanguard have built in generators and are self contained within the flywheel. You would need to order or build an adapter shaft to run your hydraulic pump off of the flywheel.