8-1
CHAPTER 8. ENGINE ASSEMBLY
ENGINE ASSEMBLY
The following procedures apply to most engine specs.
Actual procedure may vary.
1. Use new gaskets and seals at all locations. Clean
all internal engine parts with solvent and blow dry
with compressed air or allow to air dry.
2. Apply engine oil to the crankshaft bearing surfaces.
Using seal protector 670330, insert the tapered end
of the crankshaft into the crankcase. Slide the
crankshaft in until it bottoms.
3. Assemble the piston and rod together. The
connecting rod match marks must be facing the
same side as the arrow on the side of the pistons.
4. Apply engine oil to the piston skirt, rings, connecting
rod bearing surface, and the cylinder bore. Having
installed and staggered piston ring end gaps, use a
band type ring compressor to compress the rings,
and push the piston assembly into the cylinder (Illust.
8-1). The match marks on the connecting rod(s)
and the arrow on the side of piston(s) must be
facing out of the crankcase. Push the piston
assembly(s) in until the rod is positioned on the
crankshaft rod journal surface.
8-1
5. Align the match marks on the rod cap and rod. Install
the rod cap bolts and tighten the bolts in equal
increments to 210 inch lbs. (24Nm).
NOTE: If reinstalling a connecting rod assembly, the
original rod and cap must be assembled together.
Do Not Interchange.
6. Assemble the compression release components to
the camshaft. Install spring end “A” through the
weight from the shaft side. Wrap spring end “B” over
the rivet head as shown (Illust. 8-2).
8-2
SPRING END
“B”
SPRING END
“A”
7. Pre-lube and install the lifters and camshaft. Align
the timing mark or notched tooth on the crankshaft
gear to the mark or hole in the camshaft gear.
(Illust. 8-3)
8-3
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