Reassembly Procedures
WM 90 Repair
wc_tx000389gb.fm
54
8.
Reassembly Procedures
8.1
Notes on Reassembly
Observe the following prior to/during reassembly of the engine:
•
Clean each part carefully, taking special care with the piston, cylinder,
crankshaft, connecting rod, and bearings.
•
Scrape off any carbon deposits on the cylinder head and the piston
head. Be particularly careful when removing carbon from the piston
ring grooves.
•
Inspect oil seals for any damage to the lip. Replace them if damaged.
Apply oil to lip before re-assembling.
•
Replace all gaskets with new ones.
•
Replace keys, pins, bolts and nuts with new ones if necessary.
•
Tighten nuts and bolts to the specified torque settings.
•
During re-assembly, apply oil to all moving parts.
•
Check clearances and end plays. Adjust the clearances as necessary.
•
When mounting any major moving part, rotate it with your hand to
check for any jamming or abnormal noise.
8.2
Crankshaft
See Graphic: wc_gr001898
8.2.1
Wrap the keyway portion of the crankshaft (a) with polyvinyl tape (b)
and insert the crankshaft into the crankcase, taking care not to damage
the oil seal lip.
wc_gr001898
b
a
Summary of Contents for WM 90
Page 1: ...www wackergroup com Engine WM 90 REPAIR MANUAL 0160157en 002 0207 0 1 6 0 1 5 7 E N...
Page 2: ......
Page 17: ...WM 90 Repair Safety Information wc_si000143gb fm 17 2 4 Label Locations...
Page 34: ...Theory of Operation WM 90 wc_tx000388gb fm 34 4 9 Cross Section Along Shaft 1 4 10 14 g...
Page 90: ...Recoil Starter WM 90 Repair wc_tx000627gb fm 90 wc_gr002882 a d e b c...
Page 102: ...Troubleshooting WM 90 Repair wc_tx000393gb fm 102 Notes...
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