When
the cylinders of an engine become worn it is necessary
to re-bore them. Here at Amac engineering we normally
do this by either re-boring the block, therefore increasing
the capacity of the engine and fitting oversized pistons,
or re-boring the block oversize and fitting inserts
called liners, as shown below. Re-boring an engine
is normally only necessary when the engine has done
high miles, unless there has been some kind of mechanical
failure. The life of a bore is prolonged with regular
servicing, i.e. engine oil changes. |