Author Topic: Another Thread question.  (Read 196 times)

Offline RoyC

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Another Thread question.
« on: 26.09. 2019 11:00 »
What is the thread for the fillister head bolts that hold the primary and timing covers on ?
My bike is a 1958 A7SS
Staffordshire UK

Offline RDfella

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Re: Another Thread question.
« Reply #1 on: 26.09. 2019 11:54 »
1/4 Whit if I recall.
'49 B31, '49 M21, '53 DOT, '58 Flash, '00 Firestorm, Weslake sprint bike.

Offline RoyC

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Re: Another Thread question.
« Reply #2 on: 26.09. 2019 12:06 »
1/4 Whit if I recall.


Thank you for that RDfella.

RoyC.
My bike is a 1958 A7SS
Staffordshire UK

Offline muskrat

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Re: Another Thread question.
« Reply #3 on: 26.09. 2019 12:07 »
G'day Roy.
RD is correct 1/4 BSW. About the only bolt/screw screwing into alloy on our A's is the rocker bolts going into an alloy head. 5/16 BSF.
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, .
Australia
Muskys Plunger A7

Offline berger

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Re: Another Thread question.
« Reply #4 on: 26.09. 2019 12:18 »
musky they go into brass inserts on ally ED not direct into ally

Offline ironhead

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Re: Another Thread question.
« Reply #5 on: 26.09. 2019 12:47 »
What is the thread for the fillister head bolts that hold the primary and timing covers on ?

The 3 big ones on s/arm models are 5/16" W
SA