Honda CB750 Sandcast

General Category => General Discussion => Topic started by: hondasan on February 22, 2010, 08:13:33 pm

Title: Blue spot on upper crankcase?
Post by: hondasan on February 22, 2010, 08:13:33 pm

Hi everyone
Anyone know the significance of the blue spot matking on the upper crankcase of some sandcasts. The picture shows it on engine #1003089. Have also come accross another one, marked exactly the same, on a very closely numbered engine (#1003272).
Thanks - Chris R.
(http://i215.photobucket.com/albums/cc190/kerrycbx/bluespot.jpg)