CITROEN SM - Engine Assembly: Left Hand Cylinder Head Timing; LH Cylinder Head Timing Adjustment; LH Timing Adjustment Check

26 SM VEHICLES
OVERHAULING AN ENGINE
S 100-3
ASSEMBLY Contd.
43
TIMING ADJUSTMENT (L. H. CYLINDER HEAD)
- Disengage the camshafts,
- Find TDC on cylinder 6
- Replace the bearing caps with the false bearings
- Fit gauge support A on the exhaust pushrod
- Bring the needle to " 0 "
Inlet : Push in the pushrod by 1 mm (direction of engine rotation)
- Tighten the false bearing
- Find the correct engagement point of the toothed ring.
- Tighten the nut
Exhaust : Fit support A in position on the exhaust pushrod
- Bring the needle to " 0 "
- Push in the pushrod by 1.3 mm (opposite direction to that of engine rotation)
- Tighten the false bearing
- Find the correct engagement point of the toothed ring.
- Tighten the nut.
44
CHECKING THE TIMING ADJUSTMENT (L.H. CYLINDER HEAD)
USING MARKS
With the cylinder 6 at TDC and valves in " rocking "
position, the short marks on the camshafts should
be in line with the marks on the bearing caps.
USING GAUGES
Use the same procedure as that used when checking
the timing adjustment of the R.H. cylinder head.