TROUBLESHOOTING
TESTING AND ADJUSTING 17. TOO MUCH VALVE LASH (Cont.) Cause:
Correction:
Worn Cams on Camshaft
Check valve clearance. Check for free movement of valves or bent valve stems. Install a new camshaft. Install new valve lifters. Make adjustment of valve clearance according to Subject, VALVE CLEARANCE.
18. VALVE ROTOCOIL OR SPRING LOCK IS FREE Cause:
Correction:
Broken Locks
Broken locks can cause the valve to slide into the cylinder. This will cause much damage. Install new valve spring(s) Replace valve and other damaged parts.
Broken Valve Spring(s) Broken Valve
19. OIL AT THE EXHAUST Cause:
Correction:
Too Much Oil in the Valve Compartment
Be sure that the dowel is installed in the left bolt hole of the rocker shaft. Reconditioning of the cylinder head is needed. Inspect and install new parts as needed.
Worn Valve Guides Worn Piston Rings
20. LITTLE OR NO VALVE CLEARANCE Cause:
Correction:
Worn Valve Seat or Face of Valve
Reconditioning of cylinder head is needed. Make adjustment of valve clearance according to the Subject, VALVE CLEARANCE.
21. ENGINE HAS EARLY WEAR Cause:
Correction:
Dirt in Lubrication Oil
Remove dirty lubrication oil. Install new oil filters. Put clean oil in the engine. Check oil filter bypass valve for a weak or broken spring.
Air Inlet Leaks
Inspect all gaskets and connections. leaks are found.
Fuel Leakage Into Lubrication Oil
This will cause high fuel consumption and low engine oil pressure. Make repairs if leaks are found. Install new parts where needed.
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Make repairs if
