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 Post subject: GEARBOX
PostPosted: Thu Sep 21, 2017 3:21 pm 
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Joined: Wed Dec 18, 2013 5:05 pm
Posts: 214
I have had the long door TR2 gearbox inspected by Craft Diffs and Gearboxes and they tell me the synchros are worn.
I expect they will replace anything else they identify as worn but are there any other bits I should replace while it is apart? I'll find them before they start the work.


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 Post subject: Re: GEARBOX
PostPosted: Thu Sep 21, 2017 6:01 pm 
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Joined: Fri Jul 10, 2015 11:12 am
Posts: 13
you are better waiting till it is stripped down and inspected then ordering as required.
if the syncro rings are worn it would indicate high mileage and the usual parts to replace are lay shaft, thrust washers and needle bearings as well as main bearings. There is a bronze bush that 2nd gear runs on called a top hat bush because of its shape that often cracks around the thrust face and early boxes had a bronze bush where the mainshaft runs inside the input shaft and later used a needle bearing.
There are excellent write ups on web sites such as "greasy hands garage" and "buckeye triumph" and people like rimmers and moss sell recon kits although i would not trust the bearings supplied ...prefer to get name brands...... American English or Japanese.
if the cover leaks oil where the selector shafts enter there are seals under the small plate but the the complete cover has to be stripped to do the job. chances are the pins securing the selector forks will shear when you try to remove them.


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 Post subject: Re: GEARBOX
PostPosted: Fri Sep 22, 2017 10:58 am 
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Joined: Wed Dec 18, 2013 5:05 pm
Posts: 214
Thanks Peter. The gearbox was only used for 12 years from 1954 till 1967 and has comparatively few miles, but they were hard years and miles as the car was raced for all that time.
I have spare synchro rings which appear to me to have good tolerance gaps when measured on the cone. I will go over today and have a look at the box.


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