Wacker Neuson WM 130, Repair Manual

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WM 130/170/270 Repair Troubleshooting
wc_tx000386gb.fm
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Rough Idling
1. Carburetor system 1) Low idling speed Adjust
2) Slow system passage clogged Check and clean
2. Intake system 1) Air mixing from air intake sys-
tem joints Check and tighten;
replace gasket
3. Cylinder head 1) Gasket faulty (blow-by) Replace
4. Valve system 1) Improper valve clearance Adjust
2) Leakage from valve seat Repair
3) Excessive clearance between
valve stem and guide Replace guide and
stem
5. Ignition system 1) Weak spark Check; adjust or
replace plug
Excessive engine
oil consumptiom
1. Oil leakage 1) Loose oil drain plug Tighten
2) Faulty oil drain gasket Replace
3) Loose main bearing cover
bolts Tighten
4) Faulty main bearing cover
gasket Replace
5) Crankcase oil seal (front, rear)
defective Replace
2. Oil up 1) Faulty piston oil ring Replace
2) Piston ring seizure, wear, or
poor contact Replace
3) Excessive wear of piston and/
or cylinder Replace
4) Faulty stem seal Replace
5) Excessive oil level Adjust
6) Breather defective Repair or replace
Problem and possible cause Remedy