Manifold & Cylinder Head

Inspection & Repairs

1. Thoroughly clean all components in Kerosene or Diesel and blow using compressed air.

2. Be sure all oil passages are free from sludge and sediment.

3. Check the valve lever shaft expansion plugs.

4. Check the clearance between the valve rocker arm shaft and valve rocker arm bushings.

5. Check the valve lever bracket for wear in the bore.

6. Replace valve rocker arms that show excessive wear of hammering at the ends (2-3) which contact the valve, remove only enough material to give an even face on the end of the valve lever and take care that the rounding is maintained lengthwise to ensure perfect grinding action on valve stem.

Note: Replace worn screw & nut with new ones

7. Check expansion plugs on both ends of the lever shaft for leakage and replace plugs, if necessary, using sealer.

8. Check valve lever springs against specifications and replace with new ones if signs of corrosion chafing or fatigue show.

Assembly

1. Insert Circlip, Washer, 6th rocker arm.

2. Insert Bracket, Washer, 5th Rocker arm & Spring.

3. Insert 4th Rocker arm, Washer, Spacer,

4. Insert 3rd rocker arm, bracket and locating pin.

5. Now insert 2nd rocker arm, bracket, 1st rocker arm, Washer & insert circlip with plier.