Not Ranked
Spitz,
The negative(-) side is your BTDC(or, advance), 0 being TDC, and positive(+) side ATDC(retard), all based on cyl. no. 1. If your spec calls for -6, that would be 6 BTDC. You may want find true TDC at the No. 1 cylinder, and see where everything is for a reference. Then, I would consult the engine builder to see if perhaps he was playing with cam timing or something.
You may also want to check to see that the timing indicator is in the correct location. I'm not real familiar with FE engines, or where the pointer is postioned. Don't overlook an accurate timing light, either. If you have access to the kind that has the electronic advance/retard, you can dial in whatever +/- you want until the 0(TDC) lines up with the timing indicator. These types of lights usually go up to 180 degrees + or -, which can be handy if things are really screwed up.
Regardless, I would question your engine builder about this.
Dave
|