Frequently Asked Questions
Q. What is a remanufactured engine?
A remanufactured engine is exactly that – an engine which has been
returned to the manufacturer’s specification to provide levels of
performance, reliability and life similar to that of the original engine.
It is not a “replacement”, “exchange” or “rebuilt” engine.
The British Standard Automobile Series Code of
Practice BSI AU
257:2002 fully details how for spark
and compression ignition
(diesel) engines, components shall be inspected and checked against
manufacturers tolerances. Key components including piston
assemblies, big and small end bearings / bushes, gaskets, seals,
timing chains and drive belts are renewed whilst items such as
tensioners and dampers are checked and replaced where necessary.
additional operations such as crack testing machined
components or deburring reworked oilways ensure original
performance is achieved with reliability.
As well as having
all key clearances, tolerances and end floats
checked after assembly complete engines are also required to be
checked for oil pressure and compression.
remanufactured engines offer the additional advantage of
having their own unique serial number stated in the accompanying
documentation which details renewed components, completion date,
test records and relevant instructions
Q. Is a remanufactured engine different from a rebuilt one?
A. Yes. A remanufactured
engine has gone through a rigorous
programme of cleaning checks etc. A rebuilt engine, although
perhaps suitable for some applications, will not be to the same
Q. Why is a remanufactured engine better?
A. Because it has been
built to a much higher standard with new
components and tolerances to the manufacturer’s specifications.
Q. Can all engines be remanufactured?
A. Generally yes, but it
depends on the damage that may have been
done to the engine. For example, if a conrod has gone through the
side of the block than the block cannot be reused.
Q. How long does it take to remanufacture an engine?
A. This depends very much
on the engine size and specification, but
typically 3 to 5 days.
Q. When a engine is remanufactured, is it my own engine that I get
A. This depends on what
you have agreed with the member. In most
situations it will be your engine. The member, however, will consider
the work that needs to be done and work out a cost for this. In some
cases it may be a less expensive option to have an exchange engine.
In this case you will not get your own engine back.
Q. What is an exchange engine?
A. An exchange engine is
just that. Within the industry there are
companies that remanufacture engines on a production line basis.
This gives them economies of scale that allow them to market
engines at prices lower than taking an engine and remanufacturing it
from scratch. In this instance your engine is sent to them on an
exchange basis for them to remanufacture.
Q. Is that a good thing?
A. A very good thing.
Remanufacturing engines is a very ‘green’ thing to
do. From the collecting of the raw materials, to making the steel, to
making the engine itself, an enormous amount of energy goes into
this process. It goes without saying , therefore, that a huge amount
of energy is saved by remanufacturing. Good for the pocket and good
for the planet.
Q. Is it only the engine that is remanufactured?
A. No. It is possible to
remanufacture a cylinder head or a short engine.
Both would be remanufactured to the same standard as a complete
engine. Again, exchange units are available if that is better for the
Q. What else should I consider when having my engine
A. You will need to
consider that if, for example, your vehicle is eight
years old, when you fit the remanufactured engine it will be as good
as new and work as efficiently as new. Not so the other parts and
ancillaries to the engine, which are still eight years old. The classic
example is the water pump. When a remanufactured engine has
been fitted and connected to the water pump it will probably be
driving harder that when the engine was taken out. This could lead to
failure and subsequent loss of coolant, which in turn could cause
damage to your newly remanufactured engine. We will advise what
else should be done to ensure the best job.
Remember..............., if you
are paying to have the engine remanufactured
it pays to be sure everything else will keep up with it!