Below is an extract from the above
leaflets reproduced for clarity
BSA. Exchange Replacement Units
are built to a high standard and fully-guaranteed. They provide the
most economical repair service available to motorcyclists.
To obtain the best results from your investment in
an exchange unit always examine associated parts for wear or damage and
replace if necessary. New BSA. control cables will add to your enjoyment
of a service exchange engine or gearbox, whilst if you purchase a smaller
unit such as a re-bored cylinder, there are specially packed BSA. gasket
sets and engine repair kits to help you obtain the other parts essential
to satisfactory completion of the job. BSA. service literature gives
step-by-step instructions for carrying out repair work.
Ask your BSA. Dealer for any help you may
How the Exchange Replacement Service
The Exchange Replacement Service is designed to
provide a rapid overhaul service on major components and assemblies for
the owners of BSA. machines. Any of the replacement units listed in this
leaflet can be obtained in the following manner:—
Ask your nearest BSA. Stockist or Dealer for
the unit you require. If this is an item he does not carry in stock he
will obtain it for you from BSA. Service Department. Care should be
taken always to quote the fullest possible information concerning your
machine, including the Engine and Frame Numbers with prefix letters,
and colour of machine, if applicable.
When the unit is available your Dealer will
ask you to bring your machine in and will retain it only for the
period of time necessary to remove the old unit and to fit the
replacement. If you intend to fit the unit yourself then your Dealer
will require you to hand in the original at the time of collecting the
Your Dealer will then return the old unit to
the factory for recovery. Normally this will be the end of the
transaction as far as you are concerned, but you may be required to
pay an additional sum if upon examination a major component of the old
unit (such as crankshaft or crankcase in the case of an Engine) is
found to be beyond repair.
The advantages of the Exchange Replacement Service
are obvious. Your machine need only be off the road for a few hours while
the factory-built replacement unit is exchanged for the old one and all
exchange replacement units are fully covered by the BSA.
This is what you could get in the
1960's, sadly, it is no longer available today.