Britcyclerider

Well-Known Member
Whilst rebuilding my LT77, I notice that the inner hub of the 1st/2nd synchro was fitted the opposite of what the manual describes, i.e. it should be fitted with the radial groove on the inner hub facing the reverse gear but was fitted the other way up. I was intending to rebuild it as per the manual, but in view of the number of mistakes that can be found in this document, can anyone please confirm this is correct? There are (subtle) steps on the inner hub splines and I want to be sure that they are facing the correct way. Many thanks.
1st2nd synchro.jpg
bits.jpg
 
Thanks James. Interesting you say that because when I took it apart, it was opposite to the above picture, but, as mentioned, the manual states the machined groove on the inner hub should face the gear teeth on the outer member (as above). I'm inclined to put it back as dismantled but don't want to get it wrong. Is the book wrong (again!) James?
 
I also found an annomaly when I rebuilt my R380.
Pretty sure it was to do with 4th gear. Something was opposite from the manual. I seem to remember that I rebuilt as per manual, since there was deep groove being worn on the gear.
I've had no problems since, but then, there were no problems before, not with 4th gear at least. Odd.
 
Thanks James. Interesting you say that because when I took it apart, it was opposite to the above picture, but, as mentioned, the manual states the machined groove on the inner hub should face the gear teeth on the outer member (as above). I'm inclined to put it back as dismantled but don't want to get it wrong. Is the book wrong (again!) James?
if you look at the splines carefully youll see theres a slight step that side of the splines is slightly thicker and should sit under the gear teeth on outer hub,its not unusual for anything thats been apart to be put back together wrong, when i was working at the landy reconditioners we had training from lr that pointed out all those little things that youd often not notice, also that youd mark both halves before disessembly so it wasnt reassembled incorrectly , though generally youd not notice in normal use so isnt generally vital but i like to know things are as they should be
 
I also found an annomaly when I rebuilt my R380.
Pretty sure it was to do with 4th gear. Something was opposite from the manual. I seem to remember that I rebuilt as per manual, since there was deep groove being worn on the gear.
I've had no problems since, but then, there were no problems before, not with 4th gear at least. Odd.
outer hub could be fitted wrong way round but as long as it slides over inner ok youd never notice any issue,some synchro hubs if moved from their original match will become stiff when trying to change gear
 
Yes, I had planned to mark it but the synchro outer separated before I got the chance when I removed the first motion shaft and naturally hit the deck before I could do so. Next time I will mark up as soon as the casing is off! Thanks for your comments, I will follow your advice.
 
Yes, I had planned to mark it but the synchro outer separated before I got the chance when I removed the first motion shaft and naturally hit the deck before I could do so. Next time I will mark up as soon as the casing is off! Thanks for your comments, I will follow your advice.
the problem now is that most boxes have been to pieces several times so things been exactly correct cant be relied on
 

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