Ares 507-607 – 06.2005 – GB
A3.3
Technology of non-moving parts
Engine block
111msm00
Fig. 2
This can be identified by:
A cavity within which the oil cooler is fitted.
A interchangeable insert ring in the front camshaft bearing.
The locating keyslot in the bearing cap is positioned differently to distinguish between the two bearing shells.
A3.4
Ares 507-607 – 06.2005 – GB
Technology of non-moving parts
Wet liner
The upper flange between the liner and the block
incorporates a slope of 0,5.
A range of shims are available for setting liner
protrusion (A).
The base of the liner is located by 3 seals:
1. Square shaped neoprene gasket fitted on the
sleeve for sealing.
Note: Check location when rebuilding.
2. White O-ring, fitted in the block ensuring vibration
stability.
3. Black O-ring, fitted in the block, ensuring vibration
stability.
111msm01
Fig. 3
A
1
2
3
Ares 507-607 – 06.2005 – GB
A3.5
Technology of non-moving parts
Cylinder head
131msm00
Fig. 4
This can be identified by:
The cross-flow design.
The intake ducts are designed to increase turbulence inside the cylinders to enhance the air/fuel mix (SWIRL).
A cast letter (H) in the inlet port identifies the model of cylinder head.
The cylinder head now incorporates a housing for the direct mounting of the thermostat.
The cylinder head gasket is specific.
It has a compressed graphite film on both surfaces.
H
A3.6
Ares 507-607 – 06.2005 – GB
Technology of non-moving parts
Valves
131msm01
Fig. 5
The valve guides are machined directly in the cylinder head. A helicoidal open groove improves lubrication
between the guide and valve. An "umbrella" type seal (D) allows the passage of a controlled quantity of oil to
provide lubrication for the valve stem. Each valve is fitted with a rotator (B) ensuring a 3 rotation upon each valve
actuation. The contact surface between the valve head and the seat insert is thus always clean.
Nomenclature
A Collets.
B
Valve rotator.
C
Spring.
D Umbrella seal.
131hsm10
Fig. 6
A
B
C
D
Ares 507-607 – 06.2005 – GB
A3.