When
blocks enter the shop they are magnafluxed (to detect any cracks or
flaws). All threaded bolt holes are chased with a tap (to assure the
threads are good) and all gasket surfaces receive additional cleaning.
The blocks are bored to the next smallest oversize the block will
clean up at (or have parts available from the manufacturer) .020 -
.030 - .040 - .060
After boring, all blocks are decked to assure the surface is flat
and has a good surface for the head gasket to seal on. Then each cylinder
is precision honed. We use Sunnen CK-10 & CV-16 Honing Machines
set up with Diamond Hones which assure a perfect cross-hatch, the
desired surface finish, and exact cylinder size.
At this point all blocks are checked for crank saddle alignment. Any
blocks requiring align honing are honed at this time, then each block
is jet cleaned.
After jet washing, each block receives a final inspection (check bolt
holes, cylinders, check for overall condition of the block). After
final inspection the block receives a final cleaning with soap and
water, and the cylinders and oil lines are brushed with soap and water
to assure they are totally clean. The blocks are painted and proceed
to the assembly room. |
