Simon,
The tri-carb engines had the "29E" prefix. The center shift gearbox was
introduced during tri-carb production. So I would go with Clausager's
explanation. Shame he doesn't state what he thought the 'U' meant.
Cheers,
Bob Haskell
AHCA 3000 MkI registrar
http://www.ciahc.org/registry_3000mk1.php
On 10/19/2018 06:21 AM, simon.lachlan@alexarevel.plus.com wrote:
> It is 29D/RU/H4908
>
> 29 = 3,000cc (+/-!)
>
> D = MkI BT7 or BN7 (per Clausager)
>
> R= Overdrive fitted
>
> U = Centre shift (per BMC parts manual)
>
> The BMC manual is quite specific. See attached.
>
> Who is wrong? Did 29D engines continue into later tricarbs which is
> when, as I understand it, centre shifts appeared?
>
> Or what?
>
> I am considering buying an engine and rebuilding it. There?s a block on
> eBay with that number on its plate. I think it?s a MkI and that RU
> stands for overdrive and that U does not stand for centre shift.
>
> Am I right?
>
> Thanks,
>
> Simon
>
>
>
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