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Old 23-03-09, 03:02
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Mike K Mike K is offline
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Join Date: Feb 2003
Location: Victoria, Australia
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Default valves info

I found the 1941 supplement in the 1940 GMH issued manual .The supplement also has info on the WO split rims .The front cover states :

Third edition
reproduced for the use by
THE AUSTRALIAN COMMONWEALTH MILITARY FORCES


QUOTE

The 1941 engine , with the exception of several improvements, remains the same as the 1940 engine. These changes are briefly , the addition of an inlet valve spring cap cover, improved timing gear lubrication, and revised machining of the inside of the flywheel to prevent lubricant geting onto the clutch plate.

The inlet valve stem is changed above the valve spring to make provision for the use of an inlet valve spring cap cover , umbrella type.

The 1941 intake valves can be identified by the number "41" stamped on the head . The stem is shorter to allow for the fitting of the umbrella and is not hardened. The valve, therefore , can be used in 1940 engines , providing the umbrella is also used


END OF QUOTE

Mike
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Last edited by Mike K; 23-03-09 at 03:12.
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