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- Joined
- Jun 1, 2012
- Messages
- 1,497
Could be the governor. Most were neglected and oil never changed or kept full.
If it is the Mitsubishi engine. I had problems with the fuel pump wearing out and not having enough pressure. Best way to solve that issue is with an electronic fuel pump. Just make sure you get the proper pressure.
- Joined
- Jun 1, 2012
- Messages
- 1,497
I believe that a closer match to that engine is actually the Ford Kent mainly sold in Europe. But I do know that some of the Pinto parts will also work on it.
Yes, your machine should have a belt driven governor. It opens up the carburetor more when the machine is under load.
Since you don't seem to know maybe what or where the governor is, there is a good chance that it has no oil in it or the linkage has come off.
Here is a link to the parts catalog so you can look at it:
partscatalog.bobcat.com
Yes, your machine should have a belt driven governor. It opens up the carburetor more when the machine is under load.
Since you don't seem to know maybe what or where the governor is, there is a good chance that it has no oil in it or the linkage has come off.
Here is a link to the parts catalog so you can look at it:
Bobcat Parts Catalog - Find Diagrams for Your Equipment - Bobcat Company
Locate all parts and component information about your Bobcat equipment with detailed visual diagrams and illustrations with parts numbers and add to your list.
I have a 642 with the Ford engine and it started running poorly and starving for gas, died and eventually wouldn't start. For what it's worth, I replaced fuel lines, filter and fuel pump (replaced mechanical with electric) turned out to be a chunk of debris had found it's way and clogged the inlet to the needle valve to the float. Rebuilt the carb and runs better than ever.
When cleaning the carb, pay attention to the fuel shutoff solenoid if so equipped. You need to apply power to the solenoid in order to open it up (or remove it altogether) to clean that hole. When I got my 732 some years back, I had trouble with that for several years as it would clog and either stick shut and starve the carb or sick open and flood.
I have 4 filters, one at the tank, and and three before the carb. All clear so I can see if they are getting full. If one gets full I can replace it or bypass it with just screwdriver. I have pressure washed the talk out and replaced all the hoses (at 30 years old they rot inside). That carb takes so little dirt to raise hell. By pass the mechanical fuel pump. Even a high quality pump will fail don't know why but in 20 years I have put 3 in. I replaced it with a high quality electric pump. Mount it high and away from the engine for fire reasons. The carb is easy to clean on the engine (remove the float bowl) Multiple clear fuel filters in series is the answer I found. Good luck I hope this helps. I have 642, 643 and a 743b all rock rock 743b!
