Timing Chain, Simplex, Single Row, 52 Links
The Single row timing chain was fitted to every A series engine except the twin row duplex gear set which was introduced on Cooper S cars.
Check your timing gears for wear and if need be replace or alternatively to a duplex kit C-AJJ3323 or renew original standard single row by ordering SIMPLEX.
Please note that the cam gear with the tensioner rings was superseded by the plain gear which is the only type available.