Page 31
Notice G05 - 3 590 503
Issue: 11/2011 - Rev.A
ERVOR (SCA) - 6, Rue Désiré Granet - Z.I. du Val d'Argent - 95100 ARGENTEUIL FRANCE
(33) 01 34 11 50 00 (33) 01 34 11 50 10
Web : www.ervor.com - Email : info@ervor.com
TIGHTENING OF THE VALVE NUTS
- After tightening the castellated nut to a torque reading of 1 daN.m continue to tighten the
nut until the first notch is in front of the pin hole of the valve stem.
- After tightening the nut make sure that the valve slides freely in its guide and has not been
jammed during assembly. The valve should rise 1mm.
- Reassemble the cylinder head and collector in the reverse order to that described in the
paragraph «dismounting of valves».
- Systematically fit new gaskets when reassembling.
- After reassembling ensure that the intake valve is placed on the inlet side and the compression
valve on the outlet side.
TIGHTENING TORQUE OF LP & HP CYLINDER HEAD SCREWS :
2,4 DAN.M
FREQUENCY
- Tightening of valves:................................................... every 500 hours of operation
- Changing of valves: .................................................... every 2000 hours of operation
!
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