Recent content by GOM

Does any know the thread size of the hydraulic sight glass for my 642B? If it happened to be a pipe thread or another standard thread it would facilitate using a generic standard sight glass for replacement. My old machine doesn't warrant a $50.00 replacement if a $5.00 unit for an air...

I'm wondering if anyone knows what the extra solenoid is for on my 642b? It is on the opposite side from the fuel shut-off solenoid. It is located on the inside of the main frame on the left side (as you look into the engine compartment) fairly high up and forward of the hydraulic filter. It...

I'm curious if anyone knows if the Mitsubishi 4G32 in my 643B Bobcat is a freewheeling or an interference engine. There is no timing belt replacement interval in the manual, and the engine is evidently a lower compression, much less powerful version of the car/truck engine. I'd like to think...

I think I've got the hose routing in mind, and I may simply sleeve the hoses for protection and let them protrude through the mounting tab on the arm a few inches with a standard coupler threaded directly to the end of the hose. A worm drive hose clamp would prevent them from pulling back...

Also consider that the accelerator pump enriches the fuel mixture when the governor opens the throttle quickly (as when the load on the engine suddenly increases.) The accelerator pump "squirts" a tiny stream of fuel into the carburetor throat to get the engine transitioned to the higher load...

After a long, busy summer, I'm back to the Bobcat aux. hydraulics project. I've got plenty of room for hydraulic hoses to run the length of the boom (rather than the tubes) and I have the third spool moving freely when the unit is not running, so the valve seems OK. I've got the linkage issue...

Is the Mitsubishi engine in a 642B freewheeling or is it an interference engine that will bend valves if the timing belt breaks? My service manual doesn't list an interval for changing the timing belt (if you can even get them now) so I'm hoping that the low horsepower of the engine compared to...

I recently purchased a 642B, It came with a deluxe enclosed cab with a lexan door, but was never equipped with auxiliary hydraulics! The third spool is present in the valve, and the tubes run to the left side of the machine and are capped. I can create a linkage for the valve myself. It probably...