68 t100c teardown and rebuild - Page 9 - Triumph Forum: Triumph Rat Motorcycle Forums
Member's Restoration & Rebuild Projects Details of member's own projects.

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post #81 of 135 (permalink) Old 11-10-2012, 04:20 PM Thread Starter
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Got the Case halves together today and put it up in a motor stand. Camshafts in. Pretty Straightforward. Pics to come.
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post #82 of 135 (permalink) Old 11-12-2012, 07:21 AM
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Good progress there yagman and thanks for putting up the photobucket link, that's incredibly helpful to me. GPZ has now moved my rebuild thread to this section, as it should be:

http://www.triumphrat.net/members-re...c-rebuild.html
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post #83 of 135 (permalink) Old 11-12-2012, 09:21 AM
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Love this thread, such a cool bike. Thanks for all the pictures.
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post #84 of 135 (permalink) Old 11-13-2012, 11:43 AM Thread Starter
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OK, humbled again. Read the manual carefully! Tearing the cases apart again tonight. the TS Busing needs a ream. Crank is a little too tight. Good news is I heard from my Shop and the Valves are finally in and the head should be done soon, so I should be able to pick up the barrels and head soon, and hope he has the reaming tool to do the TS bush. in the meantime I started a rebuild on photobucket too. Frame pictures don't really do it justice, cause there is a fair amount of dust in my garage that I did not wipe off before attempting pictures.

http://www.photobucket.com/y68rebuild
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post #85 of 135 (permalink) Old 11-13-2012, 08:17 PM Thread Starter
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ok,torn apart again, anybody know what the standard ID the TS bushong should be reamed to? I can't find it in the General Data of the Workshop Manual, nor does the tool list it.
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post #86 of 135 (permalink) Old 11-13-2012, 10:34 PM Thread Starter
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well upon further inspection the bush and crankshaft TS are within spec, although the spec is listed in my manual as a t100s tiger, not the t100c trophy. approx 36.52 mm for the Crank and 36.55mm for the ID on the bush.
So I think I will fit the timing side tomorrow and see if it turns on its own, without the other half attached. the DS turned fine by itself, only bound when the halves joined. so if the TS turns ok on its own, then maybe it does not need reaming, and maybe the DS bearing is not seated flat, a close inspection tonight and it seems a little higher on one side. Something to do tomorrow night
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post #87 of 135 (permalink) Old 11-18-2012, 06:17 PM Thread Starter
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OK, re-mic'd the crank and bush. they seem to be ok, Manual lists the Crank journal as 1.4375-1.4380, mine is 1.4378. the manual lists the bush as 1.4385-1.4390, tougher to measure mine, got reading sll over the block seems to be 1.4384 is the closest I can get to not being really undersized. So I am thinking it is ok, closer inspection of the DS bearing showed that I could get a feeler gage between the bearing and case on the bottom side, so I don't think I had it flush into the case. Little heat and a light drift to get it down all the way. Will have to clean off the case faces and try a test re-fit this week. Hopefully it will spin freely.
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post #88 of 135 (permalink) Old 12-06-2012, 02:51 PM Thread Starter
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Crank is spinning, call from the Triumph shop, barrels and head are ready for pickup, so I will head to the shop Saturday. then a thorough inventory of any parts I will need to start rebuilding. I will have to spec the oil pump, although most on here seem to say 'replace!' if you have gone this far.
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post #89 of 135 (permalink) Old 12-09-2012, 09:31 PM Thread Starter
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got the barrels, pistons and head back from the shop, looking good. Need to inventory parts one last time, know I need the layshaft roller bearing before I go any further, should be good on most everything else. thinking I will paint the block too before proceeding, even after the bead blasting, the shape of the block will not last long.
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post #90 of 135 (permalink) Old 01-12-2013, 08:00 PM Thread Starter
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Another missed problem

anybody got expeirence bending cases?? I got looking at mine today and vaguely remember dropping this side of the case. Never noticed the damage, but the top corner of timing cover is definitely is cracked, the hole for the timing cover is bent to the point where the dowel will not go in as is. Also along the vertical plane the case has a fair bump where the case cracked and the timing cover does not lay flat. I can fix most of it but the best option would be bending the lip of the case back up, I am concerned that the inlet cam pinion gear may be too close to the timing side case.
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