C2 chalk marks - type of chalk

[Daniel J.]

Hope this in not a silly question...Is the chalk used on the frame for shim marks just regular old chalk? (or something special)

[Dick W.]

Re: C2 chalk marks - type of chalk

Lumber crayons. They are used by sawmills to mark the boards.

[Daniel J.]

Re: C2 chalk marks - type of chalk

thanks Dick...

[Stuart F.]

Re: C2 chalk marks - type of chalk

Would this be true for engine markings as well? Long ago when I foolishly detailed my engine, it used to have what appeared to be a figure "8" or a hastily made "Zero" on the front of the left cylinder head. I stupidly cleaned it off and repainted it. We're talking 1976. Who knew better then?

Stu Fox

[Michael G.]

Re: C2 chalk marks - type of chalk

Anyone care to comment on the color of lumber crayon used to mark shim count or frame pull date.....any color other than white used?

[Kevin G.]

Re: C2 chalk marks - type of chalk

Anyone care to comment on the color of lumber crayon used to mark shim count or frame pull date.....any other color than white used?

There are faint green crayon shim markings on my 72, also green X's on the rear crossmember.

[Joe C.]

Re: C2 chalk marks - type of chalk

1965 frame:



Quanta sells a (very expensive, considering the crap it contains) kit which will address all of your frame marking concerns.

[Michael G.]

Re: C2 chalk marks - type of chalk

Thanks for the info Joe however was any other color lumber crayon used other than white on mid year cars?

[Henry S.]

Re: C2 chalk marks - type of chalk

Lumber crayons. They are used by sawmills to mark the boards.

Dick, We used the same ones (as in Quanta's kit Joe referred to) in the Firestone plants. Believed we called them "grease markers" in my CRS mind.

[Joe C.]

Re: C2 chalk marks - type of chalk

Thanks for the info Joe however was any other color lumber crayon used other than white on mid year cars?

I cannot say for sure. I can say, however, that many report that white was used almost exclusively for the shim marks. Occasionally, an orange "slash" was placed on the the extreme fore and after ends of the rails. Green and orange was used for frame "pull dates".
Someone with photos of unrestored frames will surely respond.

[Jim D.]

Re: C2 chalk marks - type of chalk

There are pics. of mine in this thread = https://www.forums.ncrs.org/showthre...75193&uid=8895
My shim marks are white crayon.

[Dick W.]

Re: C2 chalk marks - type of chalk

BTW, I used to get these crayons at a local hardware store

[Michael G.]

Re: C2 chalk marks - type of chalk

That's great Dick as they can be purchased at Lowes and Home Depot as well however can others validate shim marks and frame pull date being another color other than white on mid year cars? Thanks.

[Keith B.]

Re: C2 chalk marks - type of chalk

when I detailed dads 67 frame I used a q-tip and some model paint. if you are careful you can make it look like a crayon marking. and it will last longer