Having just done another one, these are my personal recommendations based on rebuilding them on a fairly regular basis over a period of 30 years
Pakking: get the complete pakking set. It casts almost nothing.
Synchromesh: you can replace the balls and springs on the 1st/2nd and the springs on the 3rd/4th. Don't bother, replace the whole units they wear where the springs etc come into contact and the gear change will be a lot smoother.
Selector Forks: check for wear. The end of the fork should be smooth and not stepped where to comes into contact with the gears/ synchro hubs. a couple of mm off the end of the fork makes a big difference to the feel of the gear change.
Oil Seals: Replace them all. the input shaft one, the one between the gearbox and tussenbak and the output shaft seals on the tussenbak. Again the cost nothing.
Detent springs and balls: Replace all 3 on the main box, they become weak, cost nothing.
Reverse Gate Springs: Replace them.
In my humble experience the bearings and gears themselves are virtually bomb proof but check all of them and if you are unsure replace.
Re-assembly: Use the paper gaskets but follow the instructions and use a thin smear of Hylomar Universal Blue http://www.hylomarsealant.com/_resource ... ducts.html on both sides of the gasket. Do not use "kit" at all, the box will leak. I have never ever had a leaking gearbox after a rebuild by following the manufacturers instructions. The only leaking ones that I have seen is when they have been re-assembled using unsuitable sealing materials. Clean everything before assembly and use rem reiniger to degrease all mating faces.
The Haynes "Book of Lies" will tell you how to do it but I have taken the liberty of creating an Overhaul Manual and Parts Manual for you and they are now on the kennisbank.
LT76 Overhaul Manual: http://lrch.nl/node/1085
LT76 Parts Manual: http://lrch.nl/node/1086
Rob (oh bugger, I appeared to have agreed with Edward on a number of items
)Statistieken: Geplaatst door RobStewart — 27 Jun 2013, 18:45
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