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Date of birth

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JON

Posts: 98

Joined: Thu Feb 12, 2004 1:01 am

Location: Helsinki, Finland

Post Thu Nov 10, 2011 1:06 pm

Date of birth

Hi everybody,

My WLA´s VIN and left case number leads to early '43. case is propably no. 335 that year.
Q: How to find more specific date/month/planet?

JON
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Limey_Dave

Posts: 202

Joined: Mon Oct 02, 2006 3:08 pm

Location: Middle England UK

Post Mon Nov 14, 2011 12:14 pm

Re: Date of birth

If your WLA is early 1943 it will have engine number 42WLA**** and case (belly) numbers 42-335.
Case numbers for each model year started September 1st,so case numbers 42-335 would be the 335th pair of 45" cases machined from September 1st 1941.
From 1942-45 there were 7 types of WLA,all with engine number starting 42WLA.
If you give the first two digits of engine number with stars for the remaining numbers (42WLA52**) and the case numbers,I may be able to pin it down more.
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JON

Posts: 98

Joined: Thu Feb 12, 2004 1:01 am

Location: Helsinki, Finland

Post Mon Nov 14, 2011 1:44 pm

Re: Date of birth

Limey_Dave wrote:If your WLA is early 1943 it will have engine number 42WLA**** and case (belly) numbers 42-335.
Case numbers for each model year started September 1st,so case numbers 42-335 would be the 335th pair of 45" cases machined from September 1st 1941.
From 1942-45 there were 7 types of WLA,all with engine number starting 42WLA.
If you give the first two digits of engine number with stars for the remaining numbers (42WLA52**) and the case numbers,I may be able to pin it down more.


I Looked it again and correct belly no. is 43-*335. By Palmer´s book (How...military...) my bike´s engine no. refers to type III and that engine-number range ends at april 1943 (page 69). I also understood from his book that this belly no. is for case that was machined and stamped 1943 and ready for assembly (page 9).
Check Your pm.

JON
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Chris Haynes

Posts: 2634

Joined: Wed Jul 05, 2000 12:01 am

Location: Los Angeles, CA

Post Mon Nov 14, 2011 10:43 pm

Re: Date of birth

There should be date codes cast into the cases.
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JON

Posts: 98

Joined: Thu Feb 12, 2004 1:01 am

Location: Helsinki, Finland

Post Tue Nov 15, 2011 12:18 am

Re: Date of birth

Chris Haynes wrote:There should be date codes cast into the cases.


Date codes are new to me. More info?

JON
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Chris Haynes

Posts: 2634

Joined: Wed Jul 05, 2000 12:01 am

Location: Los Angeles, CA

Post Wed Nov 16, 2011 11:05 am

Re: Date of birth

JON wrote:
Chris Haynes wrote:There should be date codes cast into the cases.


Date codes are new to me. More info?

JON


Look on the outside of your left case behind the primary cover. You will find a letter and a number on a small raised boss. A= January, B= February, ETC. 1= 1941, 2= 1942, ETC. This is the month and year your case was cast. It was built into a motorcycle shortly after.
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JON

Posts: 98

Joined: Thu Feb 12, 2004 1:01 am

Location: Helsinki, Finland

Post Wed Nov 16, 2011 12:17 pm

Re: Date of birth

Thanks!

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