The J-H gearbox was a Sunbeam 4-speed close ratio gearbox which was
changed to a Getrag 5-speed gearbox in late ?74 or in ?75. The Sunbeam
box is the better shifting and quieter box. Both boxes were non-O-D. The
J-H 4-speed is considerably quicker than the J-H5 on 0-100km/h. The
final drive ratio was slightly taller on the J-H 5
Many J-H?s are coverted to a Sunbeam 4-speed with O-D.
A Vauxhall gearbox was never used.
Kees Oudesluijs
Op 4-8-2018 om 10:08 schreef Patrick & Caroline Quinn:
> Hello
>
> Lotus did indeed design and built the engine that went into the
> Jensen-Healey. Initially the gearbox came from Vauxhall while later cars were
> fitted with a ZF five-speed. It was the first modern DOHC four-valve engine
> built on a production line.
>
> There were a few problems with the engine as Jensen pushed Lotus to supply
> the engine before it had sufficient testing. There were faults that came out
> in the hands of owners and subsequent expensive service claims. It was the
> costs to repair the engines that sent Jensen into the red.
>
> However to drive a well sorted Jensen-Healey is a delight, especially one
> fitted with the ZF gearbox.
>
> As to the Renault engine, I think you might be thinking of the S1 and S2
> Lotus Europa that was fitted with a Renault 16 engine and gearbox that was
> turned around the other way than what it was in the Renault. Later Europas
> had the DOHC Lotus engine, but still with a Renault box.
>
> Hoo Roo
>
> Patrick Quinn
> Blue Mountains, Australia
>
> -----Original Message-----
> From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Bob
> Spidell
> Sent: Saturday, 4 August 2018 12:15 AM
> To: Healeys
> Subject: [Healeys] Jensen-Healey Question
>
> Reading an issue of 'Old Cars Weekly,' I came across an article about
> the Lotus Elite. It stated:
>
> "... the new rear-drive 1974 Elite offered a front-mounted Lotus
> 907-series 1973cc twin-cam four-cylinder engine. In fact, it was the
> first Lotus to offer this potent mill. This was essentially the same
> engine that the company supplied to Jensen Motors for its Jensen-Healey
> sports car."
>
> I don't know much about the J-H, but I'd always heard it had an engine
> from Renault. I doubt a small company like Lotus could design and build
> its own engine, was the short block supplied by Renault or did Lotus
> actually design and build an engine, and did it power the J-H?
>
> Bob
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