tr6fan Posted September 25, 2017 Report Share Posted September 25, 2017 Right, it managed the trip to the show and now I've got the back end in the air and the diff on my work bench (aka the freezer-don't tell swmbo) I can't find any damage, it seems dentally sound on all cogs. Oil was OK, smelled oily with no unexpected bits in it. The video shows how it turns and what play there is-I hope. Seems smooth when the whole assembly is turned in the same direction. The car was rebuilt completely in 1995 but, although the engine was rebuilt, the notes say for the "running gear" (I assume diff included) "Shot blast and paint black"-could be that it has never been rebuilt, but if it is still OK I'd rather leave it as Triumph set it up-any opinions? TIA Phil https://www.youtube.com/watch?v=4527gSDCJug Quote Link to post Share on other sites
TriumphV8 Posted September 26, 2017 Report Share Posted September 26, 2017 My opinion is never touch a running system. It is difficult from a video to check a diff. Would recommend to invite a clubmate or put the diff in the trunk and visit him for check. As I heard horrible stories about refurbish of diffs here in the forum and I am just involved with a TR6 diff repair with bad parts, there is some fear to refurbish an otherwise long time working item with parts that let the diff fail soon. Yesterday I spent half a day to correct bearing seats on the pinion. The bigger seat was too large it was 0.05mm and the small one was too large by 0.03mm. It is a pain to fit bearings on that oversize shaft and as I am not the specialist who does that every day I will have to remove the bearings several times to re-shim for proper CWP position and preload. -Wonder if others will do that work in the lathe- Quote Link to post Share on other sites
GT6M Posted September 26, 2017 Report Share Posted September 26, 2017 TR6fan, the planets have too much play inem, onece thrusts wore in, they will become even moer slack, bung some new bigger small thrusts in, { if ye got the fibre thrusts in, scop em away, bung the metal ones in } needs t,be as TAF whenst re done, as it,ll soon wear to the grooves int carrier, so it,ll become slack M Quote Link to post Share on other sites
GT6M Posted September 26, 2017 Report Share Posted September 26, 2017 Yesterday I spent half a day to correct bearing seats on the pinion. The bigger seat was too large it was 0.05mm and the small one was too large by 0.03mm. It is a pain to fit bearings on that oversize shaft and as I am not the specialist who does that every day I will have to remove the bearings several times to re-shim for proper CWP position and preload. -Wonder if others will do that work in the lathe- Andreas, im at a loss as t,what yer trying to say, way I read it, your unable to get the Pin pree load right, or Pin depth right, correct,!! If yer havin trouble getting the PIN bearing off { bigg,n }, to fit shim underneath, then why not wak its bearing race oot, then fit shims under that, it moves pin upwards into carrier dooing it this way, {same result as fitting shim under Pin heed } M Quote Link to post Share on other sites
TriumphV8 Posted September 27, 2017 Report Share Posted September 27, 2017 The diametre of the shaft was too large you could not press the bearings on! Quote Link to post Share on other sites
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