Governor Needed for 632 w/Ford Engine

[Andy Kavie]

Recently purchased a 632 and giving it some much needed TLC. I was checking the governor and it's pretty bad - shaft was wobbling. I disassembled and the pilot bearing in the case is totally trashed. I may be able to repair if I can find a new pilot bearing, shaft bearing and a new shaft seal. What are my options here? Replace based on measurements?

Otherwise, I'm looking at needing a different unit. Where would one procure such an item?

Part number on current unit is a GC9999R. Google says these can be replaced with a GC979R5.

Any help appreciated. Thx

 

[Sapientoni]

Very few machines have "proprietary" bearings. An industrial catalog will have bearing dimensions of all parameters, if you can't read a number on them. Unless it's been totally destroyed you should be able to determine the bearing design (Conrad? Needle? {not likely}) and go from there. Just remember bushings have clearance requirements also and in some applications (engine distributors especially) they might appear too loose at first glance. Try to use the Machinists Handbook as a guide in most cases. Ball bearings have different fit requirements, mean loose fit, mean tight fit, etc. if you have repairing or replacing shafts or bores. Oil levels and belt tightness are critical to proper action of the governor and I am still dealing with my 1700 that I have owned for 40 years after a piece of the linkage broke, and I just dealt with it. Now that engine is rebuilt it really needs a detailed adjustment and I've just not used it that much. I have put some hours into fiddling and I have a small manual detailing the procedures. For my needs I sometimes just skid around it and keep rolling. Best of luck!

 

[ZekeSkyree]

Here's the parts manual. Search for governor and the bearing parts numbers are there.

I hope it helps....

View attachment BOBCAT_642_SKID_STEER_LOADER_PARTS_MANUAL_501411001___Above.pdf

 

[Andy Kavie]

I ended up purchasing a unit from this ebay seller
https://www.ebay.com/sch/i.html?ite...id=p4429486.m3561.l161211&_ssn=tractorparts08

Was spendy but unit is solid and it works well.

 

[monika]

That GC9999R governor issue you’re describing on the 632 is very consistent with a worn pilot/bushing and shaft wobble, and at that point replacing “just the bearings” is usually the correct approach if you can still get accurate measurements. In most setups like this, the pilot bearing, shaft bearing, and seals are standard-sized components even if the assembly is sold under a specific part number, so cross-referencing GC9999R to the GC979R5 replacement is common practice rather than a one-off oddity. The key is measuring the case bore and shaft journals carefully and matching proper interference fit for the bearings—once the original TBS bearings are wallowed out from wobble, reusing the housing without restoring correct Rolling Mill bearing fit will just bring the problem back. If the housing itself is not damaged, sourcing replacement bearings and seals by spec rather than full assembly is usually the most cost-effective fix; if the bore is egg-shaped or fretted, then a full governor unit swap is the safer route because even new bearings won’t correct misalignment in the shaft and bearings.