Governor Valve

[TrannyTrubl]

I've isolated the problem in my transmission to a dirty governor valve in the transmission. The governor valve is located at the rear of the transmission in the tailshaft assembly. Has anyone ever replaced or cleaned their governor valve? If so, does it require complete removal of the transmission, or can you take the tail shaft assembly apart without dropping the tranny all the way out? I know I would have to at least drop the exhaust and drive shaft. What about fluid? I'm assuming the whole tailshaft assembly is full of fluid. Any advice?

[bad man working]

First thing I’d do is drop the fluid as you’ll have to change it, and when drop the sump and valve body the sump is easy a few 10mm bolts. The valve body’s not so easy when the sumps off you can see the valve body and there’re loads of torques bolt everywhere but the ones that hold it up is the T27 not the T25 so take all the T27 bolts out and the valve block will come down. You can clean it (be very clean) but don’t strip it unless are really know what you’re doing lots of tiny springs and oil seals all different length/sizes

[bad man working]

Sorry should also of said that the tail section of the box does come off in place but I think it only give access to the park mechanism