1968 z28 fan

[red67l78]

Have located a 15 stamped into one of the blades. Never noticed till today. What is it?

[bertfam]

The CLUTCH is dated November 2nd, 1967 so if the fan and clutch are original to each other, 15 wouldn't be a "week built" code. Perhaps an inspectors stamp?

John may have more info on fans so hopefully he'll chime in. Or maybe Jerry or one of the other guys.

Ed

[red67l78]

The interesting thing is that the stamp happens to be on the same blade that the W is stamped on the center section of that blade.  My gut feeling is that this was done purposely. Like your suggesting , inspector stamp. After fan assembled and torqued.  Wouldn't be for 15 foot lbs?

[JohnZ]

The interesting thing is that the stamp happens to be on the same blade that the W is stamped on the center section of that blade.  My gut feeling is that this was done purposely. Like your suggesting , inspector stamp. After fan assembled and torqued.  Wouldn't be for 15 foot lbs?

It's some sort of in-process inspection stamp from the fan manufacturer; nothing was stamped at the assembly plant where the fan was assembled to the clutch.

[red67l78]

John,
Thank you
Chas