Big Seven Running Adjustments:
Tappet adjustment, Valve Grinding  & Fitting Head Gasket

With the quality of modern petrol and oils decarbonising is a thing of the past but tappeets require adjustment, new valves are often required when rebuilding an engine and gaskets fail, so these notes will help.

B7 Adj 1


B7 Adj 2


B7 Adj 3


See also:

De-coke the Side-valve Engine From Practical Motorist and Motor Cyclist, July 1955.

Fitting Cylinder Head Gaskets From Practical Motorist and Motor Cyclist, June 1954.


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