Yeah thanks for that Rick, I'm not super confident in the vaseline trick as a couple of the O-rings are slightly large for their recesses and have a tendency to pop out of position, the lube effect of vaseline will increase their tendency to do so. Might be worth a try though before I go to the trouble of inverting the axle.
Dave M7040
Elite Member
- Joined
- Dec 10, 2012
- Messages
- 2,757
- Location
- Williamstown Ontario Canada
- Tractor
- Kubota M7040 Nuffield 465
I was helping a guy with hydraulic issues on his MF35. The manner and location of the diverter valve are identical at least in location and being supplied with oil from below.
They are using a May Hill diverter valve now. Here is the link:
3 Port Hydraulic Isolator Diverter Valve - Massey Ferguson 35, 135, 148, 165, 24
The MF tractors of that era seem to have been popular in the UK. I have a recollection than some fords were also of British origin so may share systems.
With the diverter valve, you can easily install a double acting spool valve with one of several blocks built as one like on a FEL
Consider making a blank plate with hydraulic fitting silver soldered to the vertical pipe where a conventional hydraulic fitting could be installed to allow you access to high pressure oil.
Dave M7040.
RickB
Super Star Member
- Joined
- Sep 18, 2000
- Messages
- 15,143
- Location
- Up the road from Dollar General WNC
- Tractor
- Just a Scag
You lack confidence because you haven't tried it. Vaseline has been used by pros for exactly this for decades.
I don't expect it'll be necessary to change the existing valve arrangement Dave, the diverter valve is one of the few things on the tractor that was working as it should! Just a matter of being able to bolt it back in place effectively with the damaged lugs. As it was working properly before removal, and as it wasn't leaking (also one of the few places on the tractor that wasn't leaking oil!) I've re-installed it after stripping down, cleaning out all the crud and fitting new O-rings. I'm confident it will function as it did previously, just a matter of whether it leaks oil having been disturbed. It's one of the most accessible and easily removed components on the machine so I'm prepared to take the chance of having to take it off and weld the lugs then machine the base, but I can do without the work if it proves unnecessary.
I stripped down the front axle, the kingpin bushes were badly corroded and one of the thrust bearings was almost non-existent, rollers long gone and the two halves of the bearing shell that have been rubbing on one-another for years were pretty much worn away. tI was able to drive the lower kingpin bush on the LH side out with a drift but could not move the upper one, I mounted it in my shaper with a slotting tool and cut through it opposite the split, it almost fell out on it's own in two halves.
This tractor seems to be a bit of an amalgamation of several models; going by the measurement of the front axle spindles it has a 4600 front axle under it; apparently the 4100 front end does not have the tombstone housing that this tractor does. makes it interesting finding parts.
I took advantage of the first fine weather we have had in ages and spent today stripping and painting the major components.
Lots and lots of small bits and pieces to clean up and paint yet but this felt like a major step toward beginning reassembly. I'm waiting on a new l/h spindle, then I can reassemble the front axle and tombstone, then hang the engine. Going to see if I can find a spray-can of high-temp engine enamel in something close to the colour.
This tractor seems to be a bit of an amalgamation of several models; going by the measurement of the front axle spindles it has a 4600 front axle under it; apparently the 4100 front end does not have the tombstone housing that this tractor does. makes it interesting finding parts.
I took advantage of the first fine weather we have had in ages and spent today stripping and painting the major components.
Lots and lots of small bits and pieces to clean up and paint yet but this felt like a major step toward beginning reassembly. I'm waiting on a new l/h spindle, then I can reassemble the front axle and tombstone, then hang the engine. Going to see if I can find a spray-can of high-temp engine enamel in something close to the colour.
City Farmer
Platinum Member
- Joined
- Jan 3, 2013
- Messages
- 528
- Location
- Chesterfield, Mi
- Tractor
- Ford 3000, 4400 & 4500TLB Case 830 Case 350 dozer
Looking like it's coming along real good. :thumbsup:
Water can ruin certain types of orings in a hurry, I always warm up the hydraulic oil to soften them up. Do you have a service manual by any chance? I use black RTV for the plugs on the back of the engine. When you remove the rear main seal, the service manual says to take 100(?)grit emery and work it on an angle to clean up the seal surface. When you install the new seal, it's important to install it to a certain depth. The old seal is probably a single lip and the replacement will be a double. They give you the dimension so the new seal doesn't ride in the old groove.
Andy
Water can ruin certain types of orings in a hurry, I always warm up the hydraulic oil to soften them up. Do you have a service manual by any chance? I use black RTV for the plugs on the back of the engine. When you remove the rear main seal, the service manual says to take 100(?)grit emery and work it on an angle to clean up the seal surface. When you install the new seal, it's important to install it to a certain depth. The old seal is probably a single lip and the replacement will be a double. They give you the dimension so the new seal doesn't ride in the old groove.
Andy
I've been working on the front axle yesterday and today. I installed the new kingpin bushes, the top bushes crushed down too tight to accept the spindles and frustratingly my only big adjustable reamer came up about 1mm shy of the required size. A time-consuming setup in the milling machine got one side bored to size, still have to do the other.
I'm waiting on seals for the stub axles so couldn't get the front axle finished, although I did get the centre section mounted to the tombstone and hung the engine on it.
Moved on to the back end and acheived a major milestone- got the gearbox re-hung.
I'm waiting on seals for the stub axles so couldn't get the front axle finished, although I did get the centre section mounted to the tombstone and hung the engine on it.
Moved on to the back end and acheived a major milestone- got the gearbox re-hung.
