Originally Posted By: tlowe #1716
I know you are new to alot of things mechanical. We never quit learning.
How exactly are you setting the timing?

It should go something like this.
1. Pull vacuum line from distributor and plug the carb end of hose.
2. Start engine and check timing with light. It should be idling and the timing # should be between 6-10 degrees BTDC.
3. When hooking vacuum line back up , the timing will go higher, maybe 20 ish.
4. Adjust idle back down to 750 RPM with idle screw and adjust mixture screw for highest idle and then bring idle back down with idle screw to 750.


Start with that. Tom


Well i'm not knew to mechanics, just to actually working on a car

I pulled the vacuum line but forgot to plug the carb.

I can't really read the timing marker though. I see an 'A' at one end and a '0' at the other but I can't see marks in between. Is 'A' 8 degrees or 4 or what?

When I hooked the vacuum line back up when it was idling, It actually went a little retarded.(toward the 0 and away from the 'A'.

I tried turning the screw out 2 and a half turns and then I set the timing in increments from super-retarded to super-advanced and it never did start.


69 Buick Special Deluxe. Intercooled Turbo Chevy 250 @ 15psi on a stock long block. It's kinda fast.