First of all I did not read any responses prior to making my previous post, so now I will address those whom I need to.

Yes Richard, I could consider TDC the centerline of the crank, however we are actually discussing L.C.A. = cam lobe centerline. I think it would make it too confusing to call TDC,... centerline. Hey, to each his own. I am the odd man out.

For instance, the entire industry speaks of intake lobe first and then exhaust. Now that just doesn’t compute in my little brain. Am I going to change the entire industry, hahaha! I guess each one tries their best to communicate a notion to the other person in the way they see it. In the end, they may still fail , however another person comes along and says the same thing a little differently, and wohlaa, he gets all the praise and is the hero! Hahaha, oh well! Why did it work for the second guy, cause the two of them were on the same wave length!

Vara, me too! I really didn’t like that other nick, it didn’t suit me!

Apparently Bob’s query has been satisfied while I was working on a reply, oh well, maybe it will speak to someone else!