CITROEN SM - Engine Dismantling: Case Stripping and Valves; Chain Limiter and Valve Removal; Valve Grinding and Case Stripping

8 SM VEHICLES
OVERHAULING THE ENGINE S 100-3
DISMANTLING Contd.
i 3 Contd.
Remove the free-play limiter of the chain.
Contd.
Grind the seatings and the valves (grindstone
1 630-T)
Width of the bearing faces of the seatings
In let : 2,5 mm
Outlet : 2S2 mm
- Grind the va Ives
in.
After grinding in,
clean the parts
carefully and blow
them with compres
sed air in order to
eliminate all trace
of abrasive
materials.
Stripping the timing case
Remove ;
- The oi I pump
- The gasket (1) (tube spanner c/> : 33 mm
length : 1 00mm)
- The accelerator control return lever (4)
- The plug (2)
- The union (3) and the by-pass valve
(if necessary).
Remove the valves
(universal compressor and tool D from
the set 3064-T)