Vlado cherokee j8s.pdf - VWClub.BG

ENGINE AND PERIPHERALS
Specifications 10
Valve springs
The inlet and exhaust valve springs are identical.
Free length (in mm): 45.2
Length under a load of (in mm):
23 daNm
60 daNm
39.3
29.8
Sealing turns (in mm): 27.2
Wire diameter (in mm): 4.25
Internal diameter (in mm): 21.5
Rocker arm rail
When performing operations on faults that cause
metallic particles to become suspended in the
lubricating oil, e.g.:
– damaged con rod bearing shells or crankshaft,
– parts grating,
it is essential to replace:
– the oil filter (A) located in the rocker arm rail shaft,
– the oil filter located on the main pipe,
– the lubricating oil.
REMINDER: The rocker arm rail filter must be
replaced if an operation requires the removal of the
rocker box cover.
Camshaft
All types except J8S 736 and J8S 740
Longitudinal play (in mm): 0.05 to 0.15
Number of bearings 5
Timing diagram:
– Inlet opening advance
– Inlet closing retardation
– Exhaust opening advance
– Exhaust closing retardation
14˚
46˚
50˚
10˚
With a theoretical clearance to the valve stem of
0.35 mm (All types).
Engines J8S 736 and J8S 740
Longitudinal clearance (in mm) 0.05 to 0.15
Number of bearings: 5
Timing diagram:
– Inlet opening advance
– Inlet closing retardation
– Exhaust opening advance
– Exhaust closing retardation
14˚
46˚
58˚
14˚
The value of the theoretical clearance to the valve
stems is only valid following a check on the timing
diagram and has no relation to the rocker arm
clearances.
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