$context['previous_next'] = $modSettings['enablePreviousNext'] ? '' . $txt['previous_next_back'] . ' ' . $txt['previous_next_forward'] . '' : ''; Frame numbers

Author Topic: Frame numbers  (Read 211 times)

0 Members and 1 Guest are viewing this topic.

Offline Andymac13

  • Full Member
  • *
  • Posts: 11
  • Country: scotland
  • Location: Western isles
Frame numbers
« on: February 16, 2016, 11:03:50 PM »
Hi all im a Newbie Looking for some help or advice as to the best way to try and identify
Worn frame number. I can make out BC10. S4?? but the Rest is barley readable.

Online MilitaryRon

  • Silver Member
  • ***
  • Posts: 4241
  • Country: gb
  • Branksome, in Poole, Dorset UK
Re: Frame numbers
« Reply #1 on: February 17, 2016, 06:17:57 AM »
I've had that scenario a few times. Best advice I can give is clean it up thoroughly with a wire wheel. I then study it from different angles with a torch and magnifying glass and take lots of digi pictures from different angles with and without flash. It's surprising what you can see when you zoom in.

Otherwise there are professional forensic methods as adopted by the Police for instance, were they can often determine a frame/chassis number that has been ground right off.

Ride you bike past a copper and knock his helmet off and let them do the work for you.  ;D  Ron

Online bsa171

  • Full Member
  • *
  • Posts: 188
  • Country: us
Re: Frame numbers
« Reply #2 on: February 17, 2016, 06:28:54 AM »
I agree with Ron on a good way to figure out the complete number,
however the BC10 indicates that it is a 1953 C10 or C11.

John
« Last Edit: February 17, 2016, 06:47:28 AM by bsa171 »

Offline Andymac13

  • Full Member
  • *
  • Posts: 11
  • Country: scotland
  • Location: Western isles
Re: Frame numbers
« Reply #3 on: February 17, 2016, 07:05:08 AM »
Thanks i will try the wire wheel and see where that takes me 👍

Online timsdad

  • Gold Member
  • ****
  • Posts: 5938
  • Country: england
Re: Frame numbers
« Reply #4 on: February 17, 2016, 07:23:31 AM »
It can be tricky when some of the digits have been carefully filed off by a previous owner.

The frame number on my old bevel-drive Ducati was perfectly legible until I had the frame powder coated. Now it's a job to see where it is!

Ray
Just a motorcyclist.

Offline a65rocket

  • Full Member
  • *
  • Posts: 16
  • Country: gb
Re: Frame numbers
« Reply #5 on: February 17, 2016, 10:56:18 AM »
Try using a Brass Rubbing technique, thin paper and a wax crayon

Offline enfield49

  • Bronze Member
  • **
  • Posts: 1046
Re: Frame numbers
« Reply #6 on: February 17, 2016, 11:58:15 AM »
If all else fails polish up the area where the numbers have been removed then treat with a mixture of nitric acid and copper sulphate . After a few minutes rinse off .. The copper deposits itself on the disturbed crystals where the number was stamped and the number will be revealed. Graham

Offline C101112

  • Full Member
  • *
  • Posts: 542
  • Country: fr
Re: Frame numbers
« Reply #7 on: February 17, 2016, 01:03:06 PM »

S4 is for a springer with a 4 speed gearbox.
Northern France, 100 miles from London, as the crow (or the swallow, or any bird) flies.

Offline Andymac13

  • Full Member
  • *
  • Posts: 11
  • Country: scotland
  • Location: Western isles
Re: Frame numbers
« Reply #8 on: February 17, 2016, 07:24:29 PM »
Thanks for all the info. Really appreciate it. I shall keep u all posted on my progress 👍

Andy

Offline Andymac13

  • Full Member
  • *
  • Posts: 11
  • Country: scotland
  • Location: Western isles
Re: Frame numbers
« Reply #9 on: February 17, 2016, 09:40:14 PM »
is it possible you could tell me what is the mix for the nitric acid and copper sulphate Graham also the best place to source them from

thank Andy