the No. 1 bearing on the oil pan mount-
have the threads extending 1.84" below
ing flange of the block.
the block surface.
NOTE
The current service replacement
cylinder blocks use a special cyl-
inder head bolt in all positions.
13. Check the drive pins (which plug the
vertical oil galleries) in the corners of
the block to be sure they are flush with
or below the top surface of the block.
14. Check the remaining cylinder block
surfaces and threaded holes. Check all
of the mating surfaces, or mounting
pads, for flatness, nicks and burrs.
The flatness of the blower mounting pad
Markings
must not vary more than 0.004". Clean
up damaged threads in tapped holes with
3. Install all of the required cylinder
a tap or install helical thread inserts, if
block plugs and drain cocks. Use a good
necessary.
grade of non-hardening sealant on the
threads of the plugs and drain cocks.
15. After inspection, if the cylinder
Install the plugs flush with or below the
block is not to be used immediately,
surface of the block.
spray the machined surfaces with engine
oil. If the block is to be stored for an
4. Clean and inspect all engine parts and
extended period of time, spray or dip it
subassemblies and using new parts as
in a polar type rust preventive such as
required, install them on the cylinder
Valvoline Oil Company's "Tectyl 502-C",
block by reversing the sequence of dis-
or equivalent. Castings free of grease or
assembly. The procedures for inspect-
oil will rust when exposed to the atmos-
ing and installing the various parts and
phere.
subassemblies are outlined in the follow-
ing subsections of this section.
A s s e m b l e and Install Engine
5. Use a chain hoist and suitable sling to
transfer the engine to a dynamometer
After the cylinder block has been cle-
test stand.
aned and inspected, assemble the engine
as follows:
6. Complete the engine build up by in-
stalling all remaining accessories, fuel
NOTE
etc..
Before a reconditioned or new ser-
vice replacement cylinder block is
7. Operate the engine on a dynamometer,
used, steam clean it to remove the
following the RUN- IN procedure outlined
rust preventive and blow out the
in Subsection 11H, Engine Tune-Up.
o i l galleries with compressed air.
1. Mount the cylinder block on the over-
CYLINDER BLOCK END PLATES
haul stand.
2. If a new service replacement block is
Description
used, stamp the engine serial number
and model number on the pad located in
A flat steel plate, one bolted to each end
the upper right hand corner on the
of the cylinder block, provides a support
blower side of the block. Also stamp the
for the flywheel housing at the rear and
position numbers on the main bearing
the balance weight cover and crankshaft
c o v e r a t t h e f r o n t o f t h e e n g i n e . Since
11B-12