Re: [Chevelle-List] Timing tab question

[RMilkiewicz]

I had the same problem on a 350 in my Nova. What I did was bring #1 piston to TDC using a piston stop and then looking at where the timing mark is. I was off about 10 deg. because of an aftermarket timing tab. When I figured out where TDC was I applied a timing tape to the balancer. Be sure your on the compression stroke. Rich ACES # 05066 ----- Original Message ----- From: Tom Tomlinson To: [EMAIL PROTECTED] Sent: Saturday, June 14, 2003 10:48 AM Subject: RE: [Chevelle-List] Timing tab question Bill:     I discovered this problem when I was making a tape for the balancer. Just seemed like the tape and the tab should match, not be off by a factor of two.        I think I'll follow your suggestion. Given the other weird things I've found on this engine, I have no idea what my timing is right now. Reading off the timing tab its 4 deg BTDC, but it could be 8 deg, or something else.   Tom -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Bill Vander Werf Sent: Saturday, June 14, 2003 10:23 AM To: [EMAIL PROTECTED] Subject: RE: [Chevelle-List] Timing tab question The farther away from the balancer the timing tab is the larger the error will be. The tab should be close to the balancer. The larger the balancer the farther apart the degree marks will be around the circumference of the balancer. I would get degree tape for the diameter of your balancer and a pointer from one of the mail order companies, find TDC and mark your balancer.   Bill Vander Werf     -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Tomlinson Sent: Saturday, June 14, 2003 12:32 AM To: [EMAIL PROTECTED] Subject: [Chevelle-List] Timing tab question   I'm going through the timing on my '71 350 Malibu and have a question on the timing tab.   First, my timing tab is located 1.25" from the balancer, which introduces a lot of parallax when you try to adjust the timing. Second, I measured the distance from the 0 deg mark to the 8 deg mark on the tab, and it measures 1.25". When I calculate the circumference of the circle the tab is on (6.75" for the balancer + 2.5" for the timing tab offset), I get 28.27", which is .0785"/deg. This would make 8 degrees on the timing tab equal to .628", or half the 1.25" I measured.   Shouldn't the degrees on the timing tab measure the degrees around the balancer? Is my tab off by a factor of two, or are my calculations off?   Tom Tomlinson