bluegoose

Hello everybody
I am very confused about this...dont know why I am..guess I am double guessing my self and now I am really confused.

Here the question, I have a 383 with Super Ram and Dual Sync Dizzy and an ATI Balancer, with full 360 timing marks.

Anyway I have the car set at TDC, the rotor is centered in number one spark plug, the number one port on the dizzy.

Anyways I need to put the motor at 25 deg BDC, for the dual sync fine tuning, so do I put the balancer at 25 or do I put it at 335. When I watch the rotor it appears that I must use 25 but is that really 25 deg ATDC, I am so confused here can someone please clear my old brain dust!!

Thanks in Advance

sofakingdom

iTrader: (1)

Looking at the balancer from the front, the marks that extend clockwise from 0 (from 0 counting upwards) are BTDC, and marks that go CCW from 0 (backwards from 360 downwards) are ATDC.

Make sure as you approach your desired setting, that you are moving the engine CW, which is the direction it rotates while running; and of course that you're doing this at the instance of TDC that's #1 firing (remember, the engine goes through #1 TDC TWICE during a complete cycle), not the instance of TDC that's #6 firing.

bluegoose

Thanks for the quick answer, I got it and understand it...thanks