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when did AJS stop using the piecrust petrol caps
Posted: Wed Jan 31, 2018 11:01 pm
by Invicta
My model 18 AJS first registered in March 1949 has a flat topped petrol cap. The parts manual shows the piecrust cap for that year. Is it possible that the factory started using flat top bayonet fittings as early as 1949 , or has my bike been fitted with a later tank? I have bought a piecrust cap , which of course will not fit the tank.
Re: when did AJS stop using the piecrust petrol caps
Posted: Thu Feb 01, 2018 12:17 am
by Duncan
1947 was the last year for the petrol tank and 1948 for the oil tank, parts pictures were not robustly updated but the part number usually was.
Re: when did AJS stop using the piecrust petrol caps
Posted: Thu Feb 01, 2018 3:28 pm
by Rob Harknett
They were Matchless caps, but used early post war on AJS. Probably just to use up old ex WD Matchless stock and / or until the factory got fully back to producing both marques . They would have also had to match up with oil and petrol tanks. Prewar Matchless had pie crust oil tank cap. AJS had just plain with very slight dome cap.