A
B
C
D
E
F
G
H
L
M
N
P
section
D 5
731098/1098S - M.Y. 2007 - edition 00
Use and maintenance
The socket to which the cable (Measurement Module) (3) is to be connected is indicated on the screen with a capital letter: A, B
or C.
Turn over the engine with the starter motor until the pressure stops rising.
Check the pressure in each cylinder:
- standard value: 13 to 15 bar;
- minimum value: 11 bar;
- maximum permissible difference between cylinders: 2 bar.
An excessively high pressure value can be caused by:
- build up of deposits in the combustion chamber.
An excessively low pressure value can be caused by:
- gas escaping between the cylinder head and the cylinder;
- worn valve seats;
- bent valve stems;
- incorrect valve clearances;
- worn cylinder or piston rings.
Refit the sparkplugs, position the HT leads (19) in their respective housings and tighten the nuts (20) to the specified torque
(Sect. C 3).
When the check has been completed, refit the outer structures.
20
19
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