Author Topic: A7SS/A10 Primary Crankcase Spacer. 42-7518 .Gaskets or not?  (Read 236 times)

Offline Peter Gee

  • Valued Contributor
  • ****
  • Join Date: Apr 2015
  • Posts: 268
  • Karma: 1
Do not appear to be any listed, but could be a huge source of leaks.

My approach would be, a great place ( one of the few) for a good silicone gasket compound on both sides of the spacer 42-7518, with the primary case joint face greased beofre offering up, progressive tightening over 12 hours to form a film..and removable primary afterwards, if ever needed????


Offline chaterlea25

  • Wise & Enlightened
  • *
  • Join Date: Jun 2009
  • Posts: 3179
  • Karma: 45
Hi Peter,
Search for my topic on setting up the primary chain / case alignment
I'm on a mobile while in USA so do not have the link to hand
John
1961 Super Rocket
1963 RGS (ongoing)

Offline a

  • Valued Contributor
  • ****
  • Join Date: Feb 2011
  • Posts: 273
  • Karma: 4
Do you mean these gaskets?
https://mikesclassiccyclespares.com/product/42-7509/
BSA A7 A10 ROCKET GOLD STAR 1950-62 CRANKCASE TO INNER CHAINCASE GASKET 42-7509
Thanks, Brett.

Online bsa-bill

  • Wise & Enlightened
  • *
  • Join Date: Mar 2006
  • Posts: 5415
  • Karma: 61
part No 42-7509

here and elsewhere [url][https://www.draganfly.co.uk/index.php/accessories-a-misc/product/9029-/url]
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco