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General => Douglas Motorcycles - General Discussion => Topic started by: summers1 on 07 May 2017 at 21:12

Title: What size spanner for tappets on a Douglas 600?
Post by: summers1 on 07 May 2017 at 21:12
hi can someone tell me what size spanner i need for the tappets on a 600,thanks ian
Title: Re: What size spanner for tappets on a Douglas 600?
Post by: Doug on 08 May 2017 at 04:55
Which one?

A 600cc 4hp, OB, OC, 600EW, E/F28-29, DT6, T6/S6, F/G31-32, OW1, Wessex, Greyhound, 600Aero?

-Doug
Title: Re: What size spanner for tappets on a Douglas 600?
Post by: summers1 on 08 May 2017 at 13:55
hi douglas aero 600 thanks for the reply
Title: Re: What size spanner for tappets on a Douglas 600?
Post by: Doug on 08 May 2017 at 20:42
Ian,

O.k., that I can answer. The 250/350/500/600cc Aero tappet adjuster has a 3/8 inch hex milled on it. The jam nut is 7/16 inch. Not sure why they did not just use the prevailing Whitworth wrench hex sizes, but they didn't.

-Doug
Title: Re: What size spanner for tappets on a Douglas 600?
Post by: summers1 on 09 May 2017 at 20:49
hi thanks i thought it was 1/4 whit.