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Sorry, know nothing about the hydraulics yet. Haven’t even looked at them. Once the brakes are finished I’ll be giving the whole tractor the once over so want to get familiar with this side of things. I do have a workshop manual - probably should look at it at some point huh...? 😇
Ok, had a look through the workshop manual - there were 5 different types of auxiliary pumps used in this model over the years, but only 3 different types used in models with multi power, but as there’re inside in the back case with the main pump, I doubt I’ll find out any time soon what type I have, but the aux pump is installed directly above the main hydraulic pump on a bracket and uses a gear from the main shaft to drive them. Multi power pump is a seperate pump to these so 3 pumps all up in mine - Main, Aux and Multi Power pumps. Multi power pump also sits above the main pump but behind the aux pump. Must be quite tight in there. 😉
Aux pump is factory fitted for the remote so this sort of confirms that the lever and valve is where the factory put it and was put there by them.
If there is a need to remove the top cover during my works I’ll have a closer look. I do need to remove the standpipe to change an o ring but if there’s more than that to do with I’ll be pulling the top cover anyway. Stay tuned. 👍
Ok, I have been having a browse around the internet. Evidently the aux pump was fitted just for the remotes, as the single pump was just 4 gpm, the aux 13 gpm. The same Scotch Yoke pump just used for the linkage is fitted to a whole range of tractors if the internet is to be believed. Have yet to find what type of pump the aux is.
One comment about the stand pipe says it needs to be tight enough to tap in place with a leather or such like mallet. If you can push it in by hand it will leak. It doesn't say what the cure is if it is loose!
Hopefully an o ring is the fix - looks like there’s one on the drawing, but it’s not clear. More mysteries to solve. 👍
The following may be helpful. Seems to be more than just an "O" ring?
ORK5951 Hydraulic Stand Pipe O-Rings Massey Ferguson 35 65 Tractor & MF 135 165 | eBay
and then I found this:
Service of the Hydraulic Standpipe 883788M91 on MF 135 Models w/ Pressure Control
Will check to see if mine has pressure control - I haven’t even looked at the hydraulic functions yet.
Far too long ago, but I thought that they all had it after it was introduced. For sure the 135 we had prior to replacing it with the 165 had it. It may be marked on the control quadrant.
It more than likely has, and will be marked on the quadrant yes.
Ah Gav, you give me hope that I'm not the only idiot who takes on this sort of thing. Here's a link to a thread covering my 'quick tidy-up' of our old Ford 4100
General freshen up of 1967 Ford 4100
If I'd known you were thinking of starting this I could have sent you this link earlier to warn you.[biggrin]
Wow, that’s a great resto - much more than I have planned for the Fergy. Hopefully once the brakes are done, I’ll give it a clean and repaint, redo the wiring, sort out a fuel leak and that’s about it. I don’t plan on splitting it - the clutch appears to work fine although it is out of adjustment. Once I adjust it, I’ll know for sure, but fingers crossed, I’m not planning on that.