How long is your gearbox input shaft? 1850/1500 differences

[Malc]

The input shaft on 1500 Overdrive boxes to be specific. Q1. How long is is from the front of the box to the splined end.<br>
Q2. How many splines on a 1500 input shaft TKC1267.<br>
Q3. I assuem cos an 1850 input shaft is TKC1268 it has a diff number of splines or is a different length.<br>
<br>
Any other ways to tell if an OD box is from an 1850 or a 1500?<br>
<br>
Malc

<p></p><i>Edited by: <A HREF=http://p206.ezboard.com/bthetriumphdolo ... omiteuk</A> at: 19/10/06 3:01 pm<br></i>

[alun n]

.......by the bellhousing......if it still has one.

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[alun n]

....but also by the prefix of the number stamped into the side of it!<!--EZCODE EMOTICON START :eek --><img src=http://www.ezboard.com/intl/aenglish/im ... ns/eek.gif ALT=":eek"><!--EZCODE EMOTICON END-->

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[alun n]

YD/DR for the 1500 flavour, WH/WM for the 1850

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[Malc]

The bellhousings are missing. So just the box to go on. YD or DR for 1500, what prefix are 1850.<br>
<br>
I should stick to Sprints, much easier in the box department

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[Malc]

Blimey, on the ball tonight Alun, managing to answer questions before I can even ask em <!--EZCODE EMOTICON START :) --><img src=http://www.ezboard.com/intl/aenglish/im ... /smile.gif ALT=":)"><!--EZCODE EMOTICON END-->

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[Jod Clark]

1850 input shaft is considerably longer, but I can't tell you by how much coz my gearboxes have been evicted from the front room.<br>
<br>
Women eh? They dont appreciate the true beauty of these things.<br>
<br>
Jod

<p><!--EZCODE IMAGE START--><img src="http://www.towingandleisure.co.uk/images/bash.gif" style="border:0;"/><!--EZCODE IMAGE END--></p><i></i>

[Jon Tilsom]

is to tell by the number of turns on 1st gear. If you dont have a bellhousing that is...<br>
1850 input shafts come in two sorts depending on the clutch spline count. I think the change came when moving to single rail box...but as the shafts are actually interchangeable and the sngle rail box bell housing is the same as a 3 rail one...<br>
1500 ones also come in 2 sorts...depending on the type of oil seal on the front pinion. If you have the wrong sort the bellhousing wont fit over the shaft...which is damn irritating I can tell you.<br>
There is no guarantee on numbers either. The stamping only applies to how it came out of the factory...Noone knows how many times its been reconditioned or what gear sets were put in since.... ...You could even have marina ones. Tee hee Ive got a Spit box casing that now has a TR7 set within and overdrive on the back.<br>
So look in the book and look at the ratios...put box in 1st gear and count the number of ins and outs<br>
You cant mix n match input shafts...they have to go with the gear set and laygear. In addition Canley classics do a special input shaft that lets a Spit 1500 use a TR7/Dolly gear set. I hope you havent got one of them... I think they come form a GT6 3 rail but I'm not sure.<br>
Its all good fun isnt it....<br>
<br>
Jonners<br>
<br>


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[alun n]

....not likely to move 'em herself now is she? <br>
<br>
Therefore the source of endless amusement and delight, attrition she cannot win<!--EZCODE EMOTICON START :D --><img src=http://www.ezboard.com/intl/aenglish/im ... /happy.gif ALT=":D"><!--EZCODE EMOTICON END-->

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[speedracer]

Isn't that why houses are built with spare(s) rooms? <!--EZCODE EMOTICON START :lol --><img src=http://www.ezboard.com/intl/aenglish/im ... /laugh.gif ALT=":lol"><!--EZCODE EMOTICON END--> <br>
<br>
speedracer

<p><!--EZCODE LINK START--><a href="http://www.triumphowners.com/2">1975 Dolly Sprint</a><!--EZCODE LINK END--></p><i></i>

[Jod Clark]

I didnt move them!<br>
<br>
I'm sure she could move just about anything by nagging at it long enough.<br>
<br>
Maybe she could nag me a garage?

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[John Skinner]

Did a sketch of the ital and 1500 input shafts last year. <br>
<br>
The 1500 is approx 5 13/16 inches from circlip to end<br>
The ital/marina single rail was approx 6 7/8.<br>
<br>
The 1500 has 16 teeth and the ital/marina has 17 both 20 spline with 24 tooth synchro.<br>
<br>
As an aside I was chatting to the guy at Canley classics who did the recon gearboxes and if I understood him correctly he suggested that you could swap scroll and oil seal type input shafts on the 1500 as long as you swapped the cover ie. you didn't need the whole bell housing. Anyone know if this is correct?<br>
<br>


<p></p><i>Edited by: <A HREF=http://pub52.ezboard.com/bthetriumphdol ... eclub>John Skinner</A> at: 25/2/04 9:20 pm<br></i>

[Malc]

Looking at the parts book, the G'box case is the same part no (RKC461) irrespetive of O/D or Non O/D. The Dolly parts book lists<br>
<br>
Bellhousing UKC 3478<br>
Front End Cover & Oil Seal 122566<br>
<br>
Thats it. Reference to the Rimmers Spitfire parts book shows <br>
UKC 3478 Bellhousing to box no FR33414 Scroll type seal<br>
312151 Bellhosing from box no FR33415 Rubber Oil seal.<br>
<br>
Does this mean Dolly 1500's were only ever fitted as std with scroll type seals, the rubber type being sptitfire bits that have found their way into Dolly circles.<br>
<br>
Jonners?, you are our resident 'box expert' <!--EZCODE EMOTICON START ;) --><img src=http://www.ezboard.com/intl/aenglish/im ... s/wink.gif ALT=";)"><!--EZCODE EMOTICON END-->

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[Jon Tilson]

Ive had 1500's with the oil seal type of box from the factory.<br>
Its an early late issue...and I just take each box as I find it now, Dont order bits til ya know....<br>
<br>
Jonners

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[Malc]

Might have known it wasn't going to be s'forward, and of all, you would know Jonners <!--EZCODE EMOTICON START :) --><img src=http://www.ezboard.com/intl/aenglish/im ... /smile.gif ALT=":)"><!--EZCODE EMOTICON END--> <br>
<br>
If you have a box 'sans bellhousing', how do you tell by looking at the input shaft if the box is shafted for a scroll seal or a rubber seal?<br>
<br>
Can I anticipate that you only know when you come to fit a bellhousing. Is it a case of a scroll bellhousing will not fit a rubber shaft, and a rubber bellhousing will not fit a scroll shaft (if you get my drift) or is it even more complicated <!--EZCODE EMOTICON START >D --><img src=http://www.ezboard.com/intl/aenglish/im ... s/grin.gif ALT=" >D"><!--EZCODE EMOTICON END--> .<br>
<br>
And I thought only Sprints were complicated <!--EZCODE EMOTICON START :D --><img src=http://www.ezboard.com/intl/aenglish/im ... /happy.gif ALT=":D"><!--EZCODE EMOTICON END-->

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