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THE AUSSIE 1800
(Modifications)
When the Austin 1800 was first
introduced to Australia it was virtually an English built and designed
car. However, following initial testing, changes were made to suit the
harsher Australian conditions that amounted to over 40 different
modifications.
They began with the following
changes:
* The road wheels were
completely new and locally made.
The English specification which
required wheels to withstand 30,000 cycles on the destruction machine was
not considered strong enough for our roads.
The Australian wheels were
built to withstand 100,000 cycles.
* A new type progressive
speed-up throttle opening was introduced, operated by a graduated cam;
early pedal travel is long but it shortens progressively as speed rises.
With the new throttle goes a non-jamming plastic-lined acceleration
cable.
* A similar type of non-jamming
cable was soon afterwards applied to the choke.
* The engine mountings were
made here and strengthened. The British method of rubber-to-metal bonding
was considered too weak for the bad roads in Australia.
* Exhaust pipe mountings were
strengthened - as were joints between the pipe and muffler.
* Gearbox sealing was improved
to stop persistent oil leaks around the push-pull cables leading from the
remote control lever into the gearbox.
* A new type steering rack was
fitted giving a more direct ratio. The British 1800 was 4.5 turns from
lock to lock. BMC Australia sensibly reduced this to approx. 3.5
turns.
* The handbrake lever was
lengthened because it was found that a driver wearing a three-point safety
belt could not reach it. Its general design was improved and a new type
non-jamming cable was used. The result was an excellent positive
reaction.
* Radial ply tyres were fitted
as standard.
* Door handle and door lock
mechanisms were completely redesigned and made here. The original Wilmot
Breedon hardware proved totally unsuitable for local conditions, the locks
tended to work loose or jam with dust, and striker plates would not keep
register.
* Dust sealing was improved
throughout.
Considerable redesigning of the
boot lid proved necessary.
* Window glass in Australia was
cut to three times closer tolerances than the British glass. This made
them slide better and improved waterproofing and dust
proofing.
* The seats have been deepened
and strengthened, particularly the front seat cushions which have been
given an extra inch of padding because the testers found their butts were
hitting the framework in the original setup.
* Full layback front seats,
giving a camper-sleeping version (known in Australia as a camping body),
were fitted as standard.
The straight backs are also
adjustable to in-between angles.
* Three-point safety belts for
driver and front passenger were fitted as standard, making the 1800 the
first volume production car in Australia with this important provision.
Anchorage points were provided for optional seat belts to the rear
seats.
* Trim and upholstery were
redesigned throughout, to suit our climate and also raise the Australian
content.
* Soundproofing was
improved, particularly at the engine bulkhead.
* The full width parcel shelf
under the dash was covered with anti-skid material (to prevent articles
sliding around), a central divider was also added.
* Twin padded sun visors were
fitted as standard. The English model had only a driver's visor. Our
visors also swivel sideways, to prevent side glare.
* The excellent heater-demister
was standard.
* Press button type screen
washers were standard.
* The headlining is one piece
and thickly padded with fibreglass for extra insulation.
* Electric fuel pump was moved
to the boot for better protection on Australian roads.
* Higher grade of
carpeting.
* Armrests on the front doors
(not fitted to the English model).
* Sump-guard fitted as
standard.
* Height addition to the
Hydrolastic suspension.
* The speedometer cable was
lengthened for easier travel.
* A recessed drain plug was
fitted into the fuel tank.
* A hole was made in the spare
wheel carrier, enabling easy access to the spare tyre valve when checking
inflation pressure.
* A better and quieter brake
booster was fitted.
* A wood strip (imitation) was
added to the fascia.
After the first cars had been
running for some months in Australia, it was found necessary to go a lot
further than this and the result produced a far better vehicle than it's
English counterpart.
The final changes
were:
* The jack was redesigned as
the English one was considered too weak.
* An altered clutch
design.
* Better camshaft with greater
engine torque characteristics.
* New oil control
rings.
* Internal bonnet release
lever.
* Softer rubber universal
joints for added quiet.
* Galvabond exhaust system to
resist corrosion.
Later, in the MkII, a more
powerful wiper motor was fitted.
Yet another sump-guard was
added.
PBR brakes with a dual system
was fitted - regarded as superior to the Girling brake
system. | ||||||||||
I still call
Australia
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