Peter - as always, great info
per the listing
Nov.1957 (52602) - new six-port motor and remote reservoir now in all cars
Dec. 1957- (52704) -strengthening hoop introduced in bulkhead
I know it does not apply to my Longbridge, but what is this strengthening
hoop
TIA - jim lesher
> From: peter.svilans@rogers.com
> To: healeys@autox.team.net
> Date: Thu, 9 Dec 2010 17:29:08 -0500
> Subject: [Healeys] Closest to BN4L 052381
>
> Hi Gergo
>
> Just looking at a combination of Clausager's book and the 100-Six Parts
List:
>
> The late 100-Six engine with the six-port manifold and HD-6 carbs was
fitted
> to ALL cars from Chassis/ Engine No. 52602 on, in November 1957. The
> switchover from the old-type gallery head motor was fuzzy, the new motor
> having begun being fitted at 48863 on, but 312 old- type motors,
individually
> listed in the Parts List, continued to be fitted intermittently into the
next
> 3,740 cars until 52601.
>
> Your C/E number , 052381, is NOT in this list of intermittently-fitted
> old-type motors. The last few integral gallery-head motors in the list are:
> 51742, 51743, 51744, 51755, 51746, 52550 and 52601. So you should have the
> new six-port head motor.
>
> Some other cue points for roughly dating your car (52381) can be:
>
> Sept. 1957 (47703)- sidescreens changed from front-opening (plexi angles
> forward), to rear-opening type (plexi angles backwards like most)
> (48387) -locking door handle dropped for late non-locking
> type
> Oct. 1957 (48863) -begin motor change-over to new type
> (48863) - brake master/ clutch cyls. now have a single remote
> reservoir, not separate integral type
> (50759) - accelerator controls now snap-lock type, not
> spring-loaded barrel type as on 100's
> -----------
> Nov.1957 (52602) - new six-port motor and remote reservoir now in all cars
> Dec. 1957- (52704) -strengthening hoop introduced in bulkhead
>
> Best regards
> Peter
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