Hi IM, I think you've posted this, but what is the distance around the balancer that coincides with 30 degrees of advance on a '65 Buick 300? I'd like to check my total when I get it out...If it doesn't hurt your feelings or the feelings of the others on the board, could you tell me the same thing for a '65 F**d 289? Thank you in advance and sorry for dirtying the board. p Aaron
Aaron, Not sure of the answer to your question on a 300 motor, but on the 350-455's it is 1.76" You could figure this out yourself if you want. Just measure the circumference of the balancer with a long strip of paper or tape. Once you know that, just divide the measurement by 12. The full circumference is 360* divided by 12 = 30* Alternately, you could measure the diameter of the balancer, than multiply by pi to get the circumference, then divide by 12. On a 350-455, the balancer is 6.75" in diameter X pi(3.14)=21.195 divided by 12 =1.766"
I don't go through all that math stuff, even though I have 4 degrees that are math based. An easier no-brainer method is to set the line on the balancer at 10 degrees on the timing scale on the timing cover, make another line at TDC, move the new one to 10 degrees, make another line at TDC, etc. Now, the second line is 10, lined up with 6, it is 16, fourth line, 30, set to 8 at rpms, 38. A small number by each line will let you know which multiple of 10 you are at, 1 for 10, 2 for 20, etc. Like I said, all that Pi stuff, and you could have 5 new lines done on the dampener before the calculator spit the answer out.
I want to make something very clear, Larry's method math is a GREAT method to find degrees and mark dampeners, this is of no doubt. In my older age, I always shoot for the easier method, ones that work fairly, to nicely well, and that is what my method is. Larry's is a lot more professional and accurate method than my quicky, and if you have the time and are able to do the math, his is not a bad deal at all to do.
