bucharli

i finally gathered all the parts needed to replace my missing A.I.R. pump. now i would like to know the head marking, if any, and finish for the pulley bolts. 1/4 x 20 x 1 1/4" inch bolts. i have a delta marking and a "CY" marking in zinc finish.

Alan 71

Hi b,
I see no information in the NCRS 68-69 TIM&JG about the bolts used to hold the pulley in place on the AIR pump.
The new 70-72 TIM&JG makes note of the bolts being dark phosphate with natural lock washers.
There's no mention of head marking though.
Sorry!
Hopefully a 69 person will see your post.
Regards,
Alan

bucharli

the part number i found for them says phosphate finish. i know the short bolts have an anchor on them, but no mention on the longer ones the SBC motor use.

toylman

These came off a late '69 dated pump. I think your CYs are good originals. Maybe Terry (fringo) will comment, he has done a lot of research on smog components.

Alan 71

Hi toyl,
Thanks!
Regards,
Alan