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ENGINE
B1B2021D
PRESENTATION OF ENGINE 384 F ( CFA)
Engine : CFA
Cylinder head gasket
A-A : transversal section.
(3) : shim.
The cylinder head gasket used is in laminated steel.
The gasket surface is coated with NBR in order to make the cylinder head more air-tight.
NOTE : NBR (Nitrile Butadiene Rubber) : rubber material known for its resistance to heat, oil and
wear.
Cylinder head
The sparking plugs are placed at the centre of the combustion chambers so as to make the engine
less subject to knock.
The angle formed between the inlet valves and the exhaust valves is more closed. It has been fixed
at 33.5° "h" to permit a cylinder head of a more compact construction.
The combustion chambers are double wedge-shaped "k".
The shape of the inlet ducts has been optimised for improved combustion.
The cylinder head is fixed with extended tension bolts.
The extension of the coolant channels "j" into the cylinder head has been optimised for better
cooling.
B1B2020D
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