13-3
SeCTIoN 13: TroubleSHooTING
ProbleM
PoSSIble CAuSeS
reMedY
7. engine surges or
. Vent hole in fuel tank cap plugged.
. Open vent hole in tank cap.
runs unevenly
2. Governor parts sticking or binding.
2. Clean governor parts and replace
as necessary.
. Carburetor throttle linkage,
. Clean, lubricate, adjust or repair
throttle shaft binding.
sticking parts.
. Intermittent ignition spark.
. Test ignition as per Section 8,
repair or replace bad parts
as necessary.
5. Improper carburetor adjustment.
5. Adjust carburetor.
6. Dirty carburetor.
6. Clean carburetor.
8. engine uses excessive
. Engine speed too fast.
. Adjust engine speed to
amounts of oil.
specifications.
2. Oil level too high.
2. Drain excess oil from crankcase.
. Oil filler cap loose, or cap gasket damaged. . Replace cap gasket and tighten cap.
. Breather damaged or dirty.
. Clean or replace breather
as necessary.
5. Drain holes in breather clogged.
5. Unclog drain holes in breather.
6. Gaskets or seals leaking.
6. Replace gaskets or seals
7. Valve guides worn excessively.
7. Replace cylinder head.
8. Cylinder walls worn.
8. Replace crankcase.
9. Piston rings and/or grooves worn.
9. Install new rings and/or piston.
0. Oil passages obstructed.
0. Clean out oil passages.
9. Crankshaft oil seal leaks.
. Crankcase breather dirty or defective.
. Clean or replace breather.
2. Oil seal hardened or worn.
2. Replace oil seal.
. Crankshaft seal contact surface is worn.
. Check crankshaft size and
replace if worn.
. Crankshaft sleeve bearing worn.
. Replace sleeve bearing.
5. Seal not seated squarely in bore.
5. Replace with new seal.
6. New seal damaged during installation.
6. Replace with new seal.
7. Bent crankshaft.
7. Check crankshaft for straightness,
replace if necessary.
10. breather is passing oil.
. Engine speed too fast.
. Adjust engine speed to
specifications.
2. Oil level too high.
2. Drain excess oil from crankcase.
. Oil filler cap loose, or cap gasket damaged. . Replace cap gasket and tighten cap.
. Breather damaged or dirty.
. Clean or replace breather
as necessary.
5. Drain holes in breather clogged.
5. Unclog drain holes in breather.
6. Piston ring end gaps are aligned.
6. Rotate ring end gaps, stagger 90º
apart.
7. Rings not properly seated.
7. Check for worn or “out of round”
cylinder. Install new rings. Break in
new rings with engine under
varying loads.
13
0C1103Arev0.indd 3
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Содержание OHVI GSH 190
Страница 1: ......
Страница 30: ...NOTES...
Страница 44: ...Notes...
Страница 56: ...Notes...
Страница 62: ...14 6 Notes...
Страница 68: ...15 6 Section 15 specifications Large Frame Engines...
Страница 69: ...15 7 Section 15 specifications Large Frame Engines 15...
Страница 70: ...Notes...
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Страница 72: ...Generac Power Systems Inc P O Box 310 Eagle WI 53119 Part No 0C1103A Printed in USA Revision A 06 20 06...