Frankenstang, there are several ways to change it, some better than others. I wouldn't do it at the cam because there is one bolt attaching it, and it can be a problem area.
The crank gear adjustment is from different keyways. Picture a gear with the key aligned with a tooth on the gear. Stamp a zero on that key and tooth.
Now pick another tooth and cut a keyway that is offset +X degrees and mark that keyway and tooth as +X.
Each keyway has a coresponding tooth, and the tooth will be indexed X degrees to adv or ret the cam.
Hope this clears it up some.
Crosley, don't hold it against Mike or the gear manufacturer. They all suffer from inaccuracies. Cloyes is one of the best and theirs was the first I had problems with! It's just something you learn to accept, and double check!
Aside from all of the different areas for inaccuracies, think how far you have to tear into it the second time. When you are building the engine, you are as close as you are gonna get, you might as well do it!
The crank gear adjustment is from different keyways. Picture a gear with the key aligned with a tooth on the gear. Stamp a zero on that key and tooth.
Now pick another tooth and cut a keyway that is offset +X degrees and mark that keyway and tooth as +X.
Each keyway has a coresponding tooth, and the tooth will be indexed X degrees to adv or ret the cam.
Hope this clears it up some.
Crosley, don't hold it against Mike or the gear manufacturer. They all suffer from inaccuracies. Cloyes is one of the best and theirs was the first I had problems with! It's just something you learn to accept, and double check!
Aside from all of the different areas for inaccuracies, think how far you have to tear into it the second time. When you are building the engine, you are as close as you are gonna get, you might as well do it!