Help deciphering bearing grinding marks

viiking Officially Full-On Dubber

253 posts · joined May 2012 · 23 Sep 2012, 8:52 pm

#923342

I have disassembled my 1500 T1 motor and it has the following inscription painted on the motor. I know it most probably is the undersize oversize markings, but is there a specific code that would have been used? The motor I believe was originally fully refurbished by Volkswagen King in Sydney.

20-22
30-30
and what looks like 5 plus minus 6 - the 6 is not fully legible so I am guessing and the plus minus is the plus and minus on top of each other.

I know I need to micrometer up the bearings, but was interested in what these markings meant.

Any ideas?
Thanks viiking

psimitar Son of Jim - Creator of Good

2,506 posts · joined Jan 2009 · 24 Sep 2012, 10:47 pm

#923520

looks like imperial thousandsth. 20thou is just over 0.5mm and 30 thou is close to 0.75mm 🙂

madness is in the eye of the beholder 👍

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 25 Sep 2012, 7:55 am

#923544

or is it deck height's????.....more info req'd, maybe take a pick so we can see where it's written as that can shed some light.... too many numbers to be bearing related IMO

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