3-68 ENGINE AND ENGINE (fVERHAUL
Fig. 229 Apply a strip of gauging material to the bearing jour-
nal, then install and tighten the cap
Fig. 228 Most pistons are marked to indicate positioning in the
engine (usually a mark means the side facing the front)
-»Varnish build-up or C-clip groove burrs may increase the difficulty
of removing the wrist pin. If necessary, use a punch or drift to care-
fully tap the wrist pin out.
- Insure that the wrist pin bushing in the connecting rod is usable, and
lubricate it with assembly lube.
- Remove the wrist pin from the new piston and lubricate thfl pin bores
on the piston.
- Align the forward marks on the piston and the connecting pod and
install the wrist pin.
- The new C-clips will have a flat and a rounded side to them. Install
both C-clips with the flat side facing out.
- Repeat all of the steps for each piston being replaced.
ASSEMBLY
Before you begin assembling the engine, first give yourself a
free work area. Next, clean every engine component again. The k
good assembly is cleanliness.
Mount the engine block into the engine stand and wash it one
using water and detergent (dishwashing detergent works well). V\g it, scrub the cylinder bores with a soft bristle brush and thor
clean all of the oil passages. Completely dry the engine and spra
assembly down with an anti-rust solution such as WD-40® or sii
uct. Take a clean lint-free rag and wipe up any excess anti-rust s
from the bores, bearing saddles, etc. Repeat the final cleaning pr
the crankshaft. Replace any freeze or oil galley plugs which were
during disassembly.
Crankshaft
» See Figures 229, 230, 231 and 232
- Remove the main bearing inserts from the block and bf
caps.
- If the crankshaft main bearing journals have been refinist
definite undersize, install the correct undersize bearing. Be sure
bearing inserts and bearing bores are clean. Foreign material um
will distort bearing and cause failure.
- Place the upper main bearing inserts in bores with tanc
slot.
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y to a
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hilewash-
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'the entire
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'emoved
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er inserts
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Fig. 230 After the cap is removed again, use the scale supplied
with the gauging material to check the clearance
