Author Topic: cam id  (Read 1140 times)

Offline andy2565

  • A's Best Friend
  • ***
  • Join Date: May 2010
  • Posts: 167
  • Karma: 0
cam id
« on: 26.05. 2010 18:06 »
i just took a cam out of a spare da10 engine,and it has no numbers anywhere,is it possible to id it by the  measurements,overall width of a lobe is 33mm,thickness 24mm,each lobe is slightly raised on one side,
near wolves uk,will keep riding as long as can stay upright,tribsa,tt500,2xJAP grasstrackers+jawa.gold flash.triumph metisse,and others.

Online muskrat

  • Global Moderator
  • Wise & Enlightened
  • **
  • Join Date: Jul 2009
  • Posts: 8257
  • Karma: 106
  • Lake Conjola NSW Oz
    • Shoalhaven Classic Motorcycle Club Inc
Re: cam id
« Reply #1 on: 26.05. 2010 21:06 »
G'day Andy,
                    I might be wrong, but it looks like a 357. I have a few cams in the shed I will look at tonight.
 The best way is to set it up in a lathe with a degree wheel and using a dial gauge work out the timing. 1 degree of the cam = 2 at the crank.
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7

Offline dpaddock

  • NC, USA
  • Valued Contributor
  • ****
  • Join Date: Jul 2006
  • Posts: 429
  • Karma: 5
Re: cam id
« Reply #2 on: 27.05. 2010 07:22 »
DA10 is a GF engine from 1958-on. According to Roy Bacon, the 1958 Flash was fitted with the 67-334 cam and the 1959-63 models had the 67-356 cam.

If you follow Muskrat's good advice, you can compare your measurements with Table 7, p.209, in Bacon's 'BSA Twin Restoration'.

David
David
'57 Spitfire


Offline andy2565

  • A's Best Friend
  • ***
  • Join Date: May 2010
  • Posts: 167
  • Karma: 0
Re: cam id
« Reply #3 on: 27.05. 2010 08:20 »
i'll buy the book then,ad try and learn how to dial a cam,cheers andy
near wolves uk,will keep riding as long as can stay upright,tribsa,tt500,2xJAP grasstrackers+jawa.gold flash.triumph metisse,and others.

Offline A10Boy

  • Wise & Enlightened
  • *
  • Join Date: Jun 2008
  • Posts: 1075
  • Karma: 11
  • Solihull, Near Birmingham England.
Re: cam id
« Reply #4 on: 27.05. 2010 11:26 »
A very wise investment!!  *smile*
Regards

Andy

1958 Super Rocket
Plus
1974 Kawasaki Z1a
Yam XJR 1300

Offline andy2565

  • A's Best Friend
  • ***
  • Join Date: May 2010
  • Posts: 167
  • Karma: 0
Re: cam id
« Reply #5 on: 14.06. 2010 13:10 »
been to a few dealers and mates,this is different to all standard cams,could be one of the last maybe 358,but could be a one off race cam of a sort,
near wolves uk,will keep riding as long as can stay upright,tribsa,tt500,2xJAP grasstrackers+jawa.gold flash.triumph metisse,and others.

Online muskrat

  • Global Moderator
  • Wise & Enlightened
  • **
  • Join Date: Jul 2009
  • Posts: 8257
  • Karma: 106
  • Lake Conjola NSW Oz
    • Shoalhaven Classic Motorcycle Club Inc
Re: cam id
« Reply #6 on: 14.06. 2010 13:36 »
G'day Andy,
                    now you've got to dial it up, you might have a piece of treasure.
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7

Offline andy2565

  • A's Best Friend
  • ***
  • Join Date: May 2010
  • Posts: 167
  • Karma: 0
Re: cam id
« Reply #7 on: 14.06. 2010 15:56 »
be a while until i build the engine up,going to get the end feed job,i actually found a 1126 head amongst my bits,having the fins repaired now,as soon as i do i'll let you know.
near wolves uk,will keep riding as long as can stay upright,tribsa,tt500,2xJAP grasstrackers+jawa.gold flash.triumph metisse,and others.