Re: 1987 JCB 3CX Sitemaster 2WD
Posted: Sun Sep 13, 2020 11:46 pm
Ok, maybe the output shaft nut isn't on finger tight...plus someone has been in there before made a right old mess of staking the nut to the shaft and there are signs of sealant being applied. I hope they haven't damaged anything, because the manual is quite specific about only applying not more than 1.5lbft of torque to the nut otherwise the collapsable spacer needs replacing. I wonder if my leak is because that spacer has been crushed too much and as a result there's nothing to seal the shaft spline in the bearing and seal? With any luck the 44mm socket I ordered from Amazon arrives early doors tomorrow so I can crack on with sorting out the gearbox.
I need to order some new handbrake pads as the old ones were soaked in oil, and pretty much down to the backplates, I had to chuckle that a stack of washers had been added to the adjuster to get what was left of the pads to clamp onto the disc
The correct steering ram pins arrived on Friday and while fitting them I also took the opportunity to shim all the drag link and ram ends where they sit in the hubs, hopefully in doing that I'll reduce any forces on the bushes in the wrong plane.
I've completed the refurbishment of the front loader controls, which entailed putting a new bush into the main link arm*, drilling out the hole in the bucket lever to take a bush, making up some spacers from copper washers, discovering a new pin for the bucket lever in a 5/16 bolt, crossed drilled to take a roll-pin, new clevis pins, a new rod end and a new UJ. What little slop there is now is entirely in the ends of hydraulic pistons that take the clevis pins, and there is nothing I can do about that.
*I think I went about it a bit cock-eyed in the end, as the generic 'oilite' bush I bought needed a lot of fettling to fit and without a metal turning lathe to hand I had to make do with a woodturning lathe and a file to reduce the OD and some emery cloth wrapped around a piece of copper tube to ream out the centre bore:
The now bushed bucket lever:
With it all reassembled:
I got a bit freaked out by the loader arm lever sticking when you push it fully forward then releasing it made a noticeable 'thunk', I thought it might be catching on something, perhaps there was something wrong with the way I assembled it, or worse; a problem in the distribution block. I checked everything and couldn't find anything wrong. Then late on Friday night, I was reading through the manual to work out which piston it was, before popping a question up on here, when I read a note about there being a detent on the loader control to engage the 'terrain-following' function!
I mentioned that the seat post has been braced, this is the finished result after a quick coat of paint:
And back in the cab with the seat refitted too, along with the console for the front loader controls:
I still need to sort out the drop on the left-hand door and window so I can get them to open and close better, plus fit a seal to the right-hand side window. I also need to lube the runners for the rear window. Once that and the gearbox seal are done I want to get the engine warmed up so I can drain the rather treacle-like oil and give it some nice clean stuff, I fear this engine hasn't had an oil change in a while. I also need to check the levels on the hydraulic reservoir and change its filter, along with the rear diff and slew gearbox oil levels.
Maybe then I can get on and use it for what it was bought for!
I need to order some new handbrake pads as the old ones were soaked in oil, and pretty much down to the backplates, I had to chuckle that a stack of washers had been added to the adjuster to get what was left of the pads to clamp onto the disc
The correct steering ram pins arrived on Friday and while fitting them I also took the opportunity to shim all the drag link and ram ends where they sit in the hubs, hopefully in doing that I'll reduce any forces on the bushes in the wrong plane.
I've completed the refurbishment of the front loader controls, which entailed putting a new bush into the main link arm*, drilling out the hole in the bucket lever to take a bush, making up some spacers from copper washers, discovering a new pin for the bucket lever in a 5/16 bolt, crossed drilled to take a roll-pin, new clevis pins, a new rod end and a new UJ. What little slop there is now is entirely in the ends of hydraulic pistons that take the clevis pins, and there is nothing I can do about that.
*I think I went about it a bit cock-eyed in the end, as the generic 'oilite' bush I bought needed a lot of fettling to fit and without a metal turning lathe to hand I had to make do with a woodturning lathe and a file to reduce the OD and some emery cloth wrapped around a piece of copper tube to ream out the centre bore:
The now bushed bucket lever:
With it all reassembled:
I got a bit freaked out by the loader arm lever sticking when you push it fully forward then releasing it made a noticeable 'thunk', I thought it might be catching on something, perhaps there was something wrong with the way I assembled it, or worse; a problem in the distribution block. I checked everything and couldn't find anything wrong. Then late on Friday night, I was reading through the manual to work out which piston it was, before popping a question up on here, when I read a note about there being a detent on the loader control to engage the 'terrain-following' function!
I mentioned that the seat post has been braced, this is the finished result after a quick coat of paint:
And back in the cab with the seat refitted too, along with the console for the front loader controls:
I still need to sort out the drop on the left-hand door and window so I can get them to open and close better, plus fit a seal to the right-hand side window. I also need to lube the runners for the rear window. Once that and the gearbox seal are done I want to get the engine warmed up so I can drain the rather treacle-like oil and give it some nice clean stuff, I fear this engine hasn't had an oil change in a while. I also need to check the levels on the hydraulic reservoir and change its filter, along with the rear diff and slew gearbox oil levels.
Maybe then I can get on and use it for what it was bought for!