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Author Topic: What size spanner for tappets on a Douglas 600?  (Read 1671 times)

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Offline summers1

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What size spanner for tappets on a Douglas 600?
« 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
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Offline Doug

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Re: What size spanner for tappets on a Douglas 600?
« Reply #1 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
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Offline summers1

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Re: What size spanner for tappets on a Douglas 600?
« Reply #2 on: 08 May 2017 at 13:55 »
hi douglas aero 600 thanks for the reply
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Offline Doug

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Re: What size spanner for tappets on a Douglas 600?
« Reply #3 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
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Offline summers1

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Re: What size spanner for tappets on a Douglas 600?
« Reply #4 on: 09 May 2017 at 20:49 »
hi thanks i thought it was 1/4 whit.
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