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re: TR4 Rear

To: triumphs@autox.team.net, pbrandsema@triad.rr.com
Subject: re: TR4 Rear
From: CarlSereda@aol.com
Date: Wed, 20 Aug 2003 14:18:22 EDT
Paul,
'All of the symptoms' might be $7 worth of planet gear thrust washers. Easy 
to install. Just need to pick the right thickness - see workshop manual.
Other than this unlikely 'solo' problem and simple fix (for wear adjustments 
on other items) he might bring rear-end to good local rear-end rebuilder for 
diagnosis and adjustment - this rear-end is a very typical design. But 
rearranging shims to correct the crown-pinion 'backlash' is finicky for 
first-timers 
(sometimes requiring multiple full re-dismantlings even by the experienced 
rebuilder) and removing the deepest pinion bearing race is quite rigorous (do 
you 
have the right bearing race driver and good sledge hammer?).
ps; although the manual states you need a Churchill 'case spreader' (crown 
gear carrier bearings are 'preloaded') all the rebuilders I talked with said a 
large crow bar to yank the guts was fine - and a very typical practice.
Having a local rebuilder diagnose and repair the rear-end seems high at your 
quoted $1200 - I guess this includes all new bearings, seals, and a 
crown/pinion gear set too? It actually might not need new gears, only one 
bearing, seals 
- and the resetting of backlash.
Carl
'63 TR4 since '74

Asking this question for a fellow TR owner of a 63 TR4.  He has come to the
conclusion that he needs some major work on his rear end.  All of the symtoms
point to it.  The question is whether a home rebuild is doable, or is it worth
the money ($1200) to have it rebuilt?
Thanks,
Paul Brandsema
61 TR4

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