Early Clutch Master Cylinder

Author: M. Feig
Certainly looking for feedback here on originality.  I am told that the early MCs had mounting brackets holes that were aligned perfectly to the cylinder although this one is not. The Clutch MC from my ’63 has a plastic cap.  Also am unsure what the stamped circles on the body mean.  Comments welcome.

clutchmc1 clutchmc2

Early MGB D Type Overdrive Under Hood Components and Wiring

Author: A. Henderson
Overdrive became available on the MGB in January, 1963.  The early, early wiring harness contains the necessary connections for the dash switch, and the port for the power feed to the transmission, so overdrive was planned for from the beginning.  (the car photographed has had overdrive added, as it is too early for it to have been factory equipped with overdrive.)
A correct installation includes a relay and a vacuum switch mounted next to the heater box behind the carburetors.  Many early MGBs  with added overdrives do not have these components.  The overdrive will function satisfactorily without the relay and vacuum switch.  Their purpose was to protect the overdrive from harsh disengagement.  The overdrive harness, running from the wiring junctions below the fuse panel to the relay and vacuum switch can be fabricated, and is also available from Moss Motors.
Photos show the vacuum line
running from the intake manifold to the vacuum switch, and the correct location
of the switch and relay.  The wires to connect are yellow, and yellow with a red


Early MGB Radiator Surround

Author: A. Henderson
One special feature of the earliest of MGB is that early radiator surrounds did not have a large hole on the left side, roughly corresponding to the end of the front air filter for cool air passage to the filters and carburetors.
It is unknown when MGBs switched to the surround with the hole, as again this is a part which is often switched out as a result of repairs to body damage, or when replacing a radiator.  My best guess is somewhere around the car 12000 mark.  Feel free to leave a comment with you VIN # and whether your car has a rad saddle with/without the hole in question.   It is my feeling that cars after approx#12000 to the end of chrome bumper production came with the hole.


MGB Factory Hood (Bonnet) Marking

Author: A. Henderson
Early MGBs to an unknown point had the last digits of the VIN written on the underside of the engine hood in felt pen, or paint pen.  The hoods were removed as the cars proceeded down the assembly, so the hoods were marked to ensure that they were returned to the correct vehicle near the end of the line.
It is quite unusual to see this marking still in place as most early MGBs have been repainted at least once, or have had their engine hood replaced at some point, losing this unique identifier.
Marking pens used seemed to have been blue on lighter coloured cars, and yellow/white on darker colours.  It is unknown how long this practice continued, but certainly to the mid-60s, as the photo which follows is of one of the last of the pull handle cars in iris blue-  #59195

Original MGB Oil Cooler

Author: M. Feig

I believe that this is an original 10 row oil cooler.  Note that the edges were rounded.  A friend just sent me the plate that he believe belongs to the oil cooler.  Ingemar offered up a pic that shows where the plate belongs.

Updated 2/15/12 w/Oil Cooler that has correct Fittings.  2/23/12 w/Pic of plate on Oil Cooler.
Oil Cooler3

Pull Handle MGB Door – Part 2 Interior

Author: A. Henderson

Additional Pictures – InteriorFeatures identified include:
Interior Door Locking Handle (This handle has been documented as appearing on the passenger door only, but an informal survey has identified numerous cars with the inner chrome handle appearing on both doors.  No known factory records support this; however the incidence indicates that it occurred regularly.)  

Door Latch
Door Pin

Pull handle Rubber Body Buffers

















Pull Handle MGB Door Part 1-Exterior

Author: A. Henderson
These doors were used on MGBs until approximately Car #57100.  However,  there are some later recorded examples of cars numbered into the 59000s with pull handle doors.  It is likely that the official change point recorded did not include all bodies built, and as there were significant changes to the B posts and doors themselves, earlier bodies which may have been delayed at Pressed Steel may have been completed after the official change point.  #59195 in Iris Blue is 1 example of a later car.
No MGB GTs were factory built with pull handle doors.
The following photos document most of the unique features of a pull handle door.   The pull handle vent window frame will be examined in a subsequent article.
Features identified include: 

Pull handle Outer Handle
Pull handle Rubber Door Buffer
Pull handle Door Lock Cylinder


Most parts to repair the pull handle latches are available as kits from Moss Motors.  Early door lock cylinders using the Wilmot Breeden FP series keys are unavailable.

Early MGB Keys

Author: A. Henderson
The earliest of the MGBs used
keys supplied by Wilmot Breeden in the “FP” series as per the MGA.  The keys
were either round headed, or rectangular in body shape.  Ignition locks using
the “FP” series of keys had the key number stamped on the face of the ignition
lock cylinder, and on the latching part of the trunk lock cylinder, and on the
barrel of the door lock cylinders.  Key #s were also clearly stamped on one face
of the key.
Later MGBs   used the Wilmot
Breeden “FS” series of key.  It is possible that some cars may have received
sets of “FS” series keys prior to totally exhausting the supply of “FP” series
keys.  The latest car which I know received “FP” series keys had a car number
of 11,100 approx.  Later MGBs were supplied with “FS” series keys to the end of
production in 1980. “FS” series keys could be round headed, pentagon headed, or
Although it is possible to
key all of the Mk 1 MGB locks to operate with a single key, all were supplied
with 2 different keys of different code, probably so that an ignition key could
be left at a parking or service facility while enabling the driver to lock his
trunk and glovebox.
FP lock cylinders are
extremely difficult to source, as the trunk and door lock cylinders are unique
to the very early MGB. 
There are few sources for
original “FP” keys.
Photo Caption 1:    The 2
variants of the “FP” key
Photo Caption 2:    FP keys
beside the pentagon shaped FS later key.

Early MGB Key Fobs

Author: A. Henderson
The Mk 1 MGB was delivered
with leather samples to match the primary interior colour attached to two of the
factory supplied keys, 1 each of the ignition and door keys.  These samples were either black, blue or red.  The
originals have a silver stamped “MG” octagon on one side and “Real English
Leather is Used in this Upholstery ” on the other side.  Some replacement ones I
happened across are accurate as to leather colour but use a gold stamping for
the printing.
It is unknown as to when the
practice of shipping original keys with leather fobs installed was discontinued,
but before the start of Mk 2 MGB production.  It is believed that these fobs
were also shipped with the MGA.
Photo 1:  Unused Replacement
Single Key Leather Fobs
Photo 2:  The original fob in
blue to match the leather used only in iris blue cars
Photo 3:  The stamping on the
reverse side of an original fob.

Thanks for your Support!