LT230 rebuild

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id say its ok ,but for future sake you start with a known small shim or with no shim if using a dti ,otherwise you have to use rolling resistance as a measure,but because its so slight rolling resistance isnt easy to measure , lr use 2 thou endfloat to zero ,we found zero to 2 thou preload better from striping their boxes, theirs from factory varied widly
 
OK gotcha, I'll swap in one of the thinner shims (or none) and see what that gives.

Also going to try some of the other shims on the layshaft.

Once I've done fiddling I'll get it built up - going to paint the case once it's assembled.

Threadlock on the centre bearing outers right?
 
Swapped shims about and got the DTI back on...

The other layshaft shims added too much drag, so sticking with the first one.

The other mainshaft shim showed 0.05mm of end play, so sticking with the other one.

Started to reassemble:

First job was to fit the end plate to the casing, also locktited the layshaft race in and fitted the oil seal:
IMG_20141230_162120.jpg


Next the selector shaft was reassembled as per the overhaul manual, 1st/2nd fork onto the shaft with the pin located in the jaw of the fork, then the selector spool is slid on and 3rd/4th located in the jaw of the 3rd/4th fork, finally 3rd/4th&spool are slid over the pin on the shaft:

IMG_20141230_171309.jpg


Next the mainshaft & selector assembly are lowered onto the centre plate:

IMG_20141230_171813.jpg


Then the layshaft is fitted - the mainshaft has to be lifted slightly to allow this:

IMG_20141230_171921.jpg


Then the pinion and 4th gear baulk ring can be fitted, layshaft has to be tilted out of mesh slightly to allow this (photo is a bit blurry, sorry!):

IMG_20141230_172123.jpg


The maincase can now be lowered on:
IMG_20141230_172237.jpg


If the selector has been assembled correctly the spool should be visible through the spool retainer hole:

IMG_20141230_172250.jpg


Flip the assembly, whip the centre plate back off, apply sealant and locktite:

IMG_20141230_173359.jpg


Fit the inner detent spring and ball bearing, I greased it up so it wouldn't fall out:

IMG_20141230_173907.jpg


Then use some slave bolts to fasten the centre plate down:

IMG_20141230_172920.jpg


I then test fitted the extension case gears, fifth & reverse - I didn't fit the reverse retaining circlip at this point:

IMG_20141230_180029.jpg


I also fitted the selector ball housing, and although I can easily select between 4th and reverse, I can't engage any other gear :(

I suspect the spool for 1/2 3/4 is the wrong way round - does this sound about right James?
 
spool has 2 tags to sit either side of interlock yours is facing the gears ie wrong

Ha, thought as much - the overhaul manual doesn't say which way round it should go, I guessed wrong - live and learn!

I'll go pull it back apart in a mo...

..will... not... be... beaten... :crazy:
 
Oops, least you've realised now though Ben.
Got to say the selector shafts was the scariest thing for me when I did the lt77 :eek: Weird really, just one of those things I guess.
 
Think I must still have the selector assembled wrong, I can only change between fifth and reverse, can't knock the selector over to get the other gears at all, even with the turret and stick on. Could I have the selector forks overlapped the wrong way?
 
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