T100r crankshaft endfloat

[Duppy Conqueror]

I thought a new post would be a good idea. We have replaced the left hand side bearing and nipped the cases to gether to make sure things were moving freely which they were. The question is how much end float there should be.

[Revband]

Very little, but you can't check it properly until you get the new timing side bush correctly fitted ?.

[Rex]

Revband, do you get the impression that "we're" not talking about the same things as the original poster?
As you say, until the bush issue is sorted, endfloat is academic.
Duppy, no offence intended, but how did you fit a replacement bearing? Did you get an O/S one made, Loctite,what?
Or, possibly more likely, we're all talking at cross-purposes?

[Duppy Conqueror]

Sorry for any confusion. We have only as yet replaced the bearing on the left hand side and wanted info on how much endfloat is allowed so for the final build we could have any shims needed already here.

[L.A.B.]

The question is how much end float there should be.

".008/.017 in." is the figure quoted in the manuals of the period. 

[Duppy Conqueror]

Thanks LAb

[Duppy Conqueror]

This bike is supposed to be 66 model by which time I think the right hand bush was replaced with a needle or roller bearing and could the right hand case been replaced with an older one. The diagram in the hanyes manual only shows the newer type and shows a spacer on the right hand side

[Rex]

No, 1966 still had the bush fitted, but then in 1966 it wouldn't be a T100R either...

[yebbut]

there are not and never have been shims on any Triumph  twin crankshaft.

[I have built 100's of them over time, of all sizes]

[Marky]

Thanks again for the comments and interest-it all helps to achieve what is becoming a drawn out rebuild!-The bike was reimported from the USA to UK in 1992 and has gone through several hands since then although I have had it for bout 6 years now.  It has engine number and frame number matching which are of the 1966 serials and all documentation indicates year of manufacture as 1966 but that is all I can really go on and what I am coming across now!

[Marky]

Sorry should have added to my last post that the numbers on the case and frame reads T100R +serial number...........

[Revband]

yebbut is correct no shims are used on the crankshaft, the clearance is built in in manufacture, if having a timing side bush made it is important that the inner collar is the correct thickness to maintain the end float, you can check what this is by,  1/ buying a new bush and measuring it, 2/ talking nicely to a supplier and asking for the measurement, 3/ assemble the crankcase  without the bush and measure what thickness is needed.

[Rex]

Sorry should have added to my last post that the numbers on the case and frame reads T100R +serial number...........

What are the numbers? You can leave off the last one or two if security is a concern, but something's wrong somewhere if the numbers indicate 1966 as that's over a year or more before the T100R came out...

[Marky]

 The number is H 4716* and a new timing bush is on order

[Duppy Conqueror]

it is starting to look to me that a 5ta has been sold as a t100r.