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Vitesse/Herald Bellhousing. Print
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Mark Hammond
January 9, 2017, 9:25pm Report to Moderator

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Not sure what impact that diff would make, or not.  I doubt whether the components within the 4 and 6 cylinder 'boxes are interchangeable.  Concensus of opinion suggests not.

M.


Herald 1200 Saloon, owned (in the family) from new, Royal Blue/Black trim
[color=purple]MX-5 Z-Sport (Tweaked to 200bhp)2007,
Suzuki Vitara S Auto, Cosmic Black, 2017.
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Matt306
January 9, 2017, 9:31pm Report to Moderator

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Hmmm what was the effect of the vitesse box in the herald?


Worcestershire Area Organiser search Facebook for Club Triumph Worcester
Triumph 13/60 1970 Convertible  first car restoration, many botches much learnt... Now back MOTd and Taxed... 2016 RBRR COMPLETE
1974 Spitfire Mk IV in Yellow and Rust... for restoration
Triumph 1000cc 1991 Daytona got to go to pay for Yellow Peril
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Matt306
January 9, 2017, 9:58pm Report to Moderator

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Quoted from Nick Jones
Can't see the mainshaft tip very clearly in any of your pics.  But if it is anything less than perfect it'll just chew itself up more.

http://sideways-technologies.co.uk/forums/index.php/topic/7107-chriss-mkiv-basket-case/page-3

Posts 53 to 68.  Didn't cost much though it doubtless helps that I know a number of machine shops.  So far untested but I know others who have done this with great success.

You do know that you won't be able to use the Herald input shaft with the Vitesse gear set don't you?  The gears have different numbers of teeth.  I'm pretty sure that very few parts are interchangeable between the 3 synchro and 4 synchro 'boxes though not certain as I gave up with 3 synchro 'boxes about 30 years ago ( )

Nick


Interesting solution to the worn tip. Did you press on the bush after the synchros went on saw you had a problem with it! What size bush did you use?

I need to know where i am going though. I have a Vitesse box, which can be made to fit but the ratios are poor for a 1300 engine.

I have a 3synchro 3 rail box which fits but needs a different shaft for the OD, not sure which box from though... all in all agggghh... I blame myself for thinking it would be simple!



Worcestershire Area Organiser search Facebook for Club Triumph Worcester
Triumph 13/60 1970 Convertible  first car restoration, many botches much learnt... Now back MOTd and Taxed... 2016 RBRR COMPLETE
1974 Spitfire Mk IV in Yellow and Rust... for restoration
Triumph 1000cc 1991 Daytona got to go to pay for Yellow Peril
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Nick Jones
January 9, 2017, 9:59pm Report to Moderator

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Quoted from Matt306


Is it a struggle to get going? I have a 3.89  diff on the rear already. Would a OD make any difference to the ratio issue?

The box is marked HC so for a vitesse. Could I use the main shaft with my 3 synchros herald box  (The answer will almost certainly be no, just checking).

Failing that could I use the main shaft from a HC box in a spit 4 synchro box prefixed FH.


Vitesse 1st and 2nd gear are a bit tall for a 1300 and hill-starts give the (rather small) clutch a good hiding.

I think I said this earlier but you can use the HC mainshaft in a 1300 MkIV Spit box, so you could source a MkIV 1300 non OD box and convert it with the HC mainshaft using the the OD and adaptor from the Vitesse (Vitesse OD may have a higher running pressure than the Spit one, but doesn't really matter).

Broadly speaking, many of the components are interchangeable between 4 and 6 cylinder boxes - apart from the gears themselves as the ratios are different.  There is even some interchangeability between single rail and three rail.  Plenty of "gotchas" too!

You cannot use the HC mainshaft with the original 3 synchro Herald box.

Nick


Nick Jones
Somerset UK

Vitesse Mk 1.5 Convertible EFI, Survivor of RBRR 2008, HCR & 10CR 2009, HCR 2010, 10CR2011, HCR 2012, 10CR2013, 10CR2015, HCR 2016 & HCR 2017.
GT6 Mk3 Roto - project in progress
Spitfire MKIV son's project now on the road as a daily driver
2.5 PI Saloon now EFI (PIe?), Engine rebuilt and running sweet.  Diff howling...... Survivor of HCR 2013 & 2014 Gone to live in Swansea

http://www.tengaston.plus.com
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Nick Jones
January 9, 2017, 10:09pm Report to Moderator

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Quoted from Matt306


Interesting solution to the worn tip. Did you press on the bush after the synchros went on saw you had a problem with it! What size bush did you use?

I need to know where i am going though. I have a Vitesse box, which can be made to fit but the ratios are poor for a 1300 engine.

I have a 3synchro 3 rail box which fits but needs a different shaft for the OD, not sure which box from though... all in all agggghh... I blame myself for thinking it would be simple!



Yes bush has to go on last as it is just (0.15mm!) too big to allow the synchros hub on it.  I started with an oilite bush 3/8" x 3/4" x 1" (P/No. 580894 I think).  All the dimensions got changed though.  The guy did it in about 30 mins flat, though I did have to pull it off again and shorten it a bit - my fault as I hadn't thought it through properly.  

Your 3 rail, 3 synchro box would need the main shaft from a Mk1, Mk2 or Mk3 Spitfire OD box.  Possibly a Vitesse 1600 box also though I'm not sure about that one.  As I said earlier we do have a complete 3 synchro box OD box here less the OD, adapter plate and remote.  Do you actually have the OD and adapter plate from the Vitesse 'box?

Nick



Nick Jones
Somerset UK

Vitesse Mk 1.5 Convertible EFI, Survivor of RBRR 2008, HCR & 10CR 2009, HCR 2010, 10CR2011, HCR 2012, 10CR2013, 10CR2015, HCR 2016 & HCR 2017.
GT6 Mk3 Roto - project in progress
Spitfire MKIV son's project now on the road as a daily driver
2.5 PI Saloon now EFI (PIe?), Engine rebuilt and running sweet.  Diff howling...... Survivor of HCR 2013 & 2014 Gone to live in Swansea

http://www.tengaston.plus.com
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Matt306
January 10, 2017, 9:39am Report to Moderator

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I have a dtype od off a rootes car I need another annulus for a triumph to make it work from a scrap od. Got to rebuild it anyway so no worries on doing that. If you have a three synchro box with od shaft it sounds like I am in need of one.
I am going to source the adapter plate locally if one doesn't pop up on eBay. No huge rush on this want it complete by 2018...


Worcestershire Area Organiser search Facebook for Club Triumph Worcester
Triumph 13/60 1970 Convertible  first car restoration, many botches much learnt... Now back MOTd and Taxed... 2016 RBRR COMPLETE
1974 Spitfire Mk IV in Yellow and Rust... for restoration
Triumph 1000cc 1991 Daytona got to go to pay for Yellow Peril
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