TROUBLESHOOTING - TM-5-3895-349-14-P0414

TROUBLESHOOTING

TESTING AND ADJUSTMENT

Problem

Cause

Correction

Not Enough Lubrication

Check lubrication in valve compartment. There must be a strong flow of oil at

13. LITTLE MOVEMENT OF

engine high rpm, but only a small flow at low rpm. Oil passages must be clean,

ROCKER ARM AND TOO

especially those sending oil to the cylinder head.

MUCH VALVE CLEARANCE

If there is too much wear, install new parts or rocker arms. Make adjustment of

Rocker Arm Parts Worn

valve clearance according to the Specifications.

End of Valve Stem Worn

If there is too much wear, install new valves. Make adjustment of valve clearance

according to Specifications.

Too Much Valve Clearance

Make adjustment according to Specifications.

Worn Push Rods

If there is too much wear, install new push rods.

Make adjustment of valve

clearance according to the Specifications.

Cam Followers Worn

If there is too much wear, install new cam followers. Make adjustment of valve

clearance according to the Specifications.

Worn Cams on Camshaft

Check valve clearance. Check for free movement of valves or bent valve stems.

Check for cam follower wear. Install a new camshaft. Make adjustment of valve

clearance according to the Specifications.

Loose Bolts Holding Rocker Arm

Tighten to 18 5 lb. ft. (2.5 0.7 mkg).

Assembly

14. VALVE SPRING LOCK IS

Broken Locks

Broken locks can cause the valve to slide into the cylinder. This will cause much

FREE

damage.

Broken Valve Spring(s)

Install new valve spring(s).

15. OIL AT THE EXHAUST

Too Much Oil in the Valve

Look at both ends of the rocker arm shaft. Be sure that there is a plug in each end.

Compartment

Worn Valve Guides

Reconditioning of the cylinder head is needed.

Worn Piston Rings

Inspect and install new parts as needed.

16. LITTLE OR NO VALVE

Worn Valve Seat or Face of Valve

Reconditioning of cylinder head is needed. Make adjustment of valve clearance

CLEARANCE

according to the Specifications.