Generac Power Systems 53187 - Manual (Page 81)

SECTION 2.5
ENGINE REASSEMBLY
1
Crankshaft & Bearing Holder (Continued)
Liquid packing
Figure 4. Liquid Packing
Piston and Connectinq Rod
1. Coat parts w ith clean engine oil. Move the piston
rings around to provide plenty of oil in the ring grooves.
2. Set the ring gaps 90' apart from each other. How ­
ever, do NOT place the ring gaps tow ard the piston pin
or at right angles to the piston pin.
3. Use a ring com pressor to com press the rings around
the piston.
4. Face the alignm ent m ark on the connecting rod
tow ard the injection pum p. Install the parts, starting at
the front and m oving tow ard the rear.
5. Tighten the connecting rod caps to their specified
torque.
CONNECTING ROD CAP TIGHTNESS
22-25 Ft.-Lbs. (3.0-3.5 m -kg)
6. After installation, check that the crankshaft can m ove
slightly the specified axial distance.
CRANKSHAFT AXIAL PLAY
0.004-0.012 Inch (0.1-0.3m m )
PART 2
ENGINE MECHANICAL
Suction Pipe and Filter
Install an o-ring onto the suction pipe. Install the
pipe into the cylinder block. Install the suction filter.
SUCTION FILTER TIGHTNESS
7-9 Ft.-Lbs. (0.9-1,3 m -kg)
Oil Pan
Tighten oil pan boltsevenly and in diagonal incre­
m ents. Install the front plate.
Camshaft Assembly
Install the cam shaft assem bly ana plate. Tighten
the plate to the specified torque. See Figure 8.
PLATE TIGHTENING TORQUE
7-9 h.-Lbs. (0.9-1.3 m -kg)
PAGE 2.6-2