SBC DISTRIBUTOR INSTALLATION???'s

[dickeymoore]

I have a recently built sbc 406 I installed timing chain as usual crank dot up cam dot down. I ran engine on engine stand fired right up and run put engine back at tdc removed distributor and installed another distributor, tdc xero on balancer and rotor point to number 1 cylider,finally got engine to run with different distributor but has to advance distributor all the way till the vacuum advance hits the intake but it still needs more advance ANY HELP,?THANKS

 

[64nailhead]

You’re off a tooth. Easiest way to confirm this is to move all of the plug wires one hole counterclockwise (from why you’re describing) and reset the base timing.

I’ve never been one to get wound up about how the plug wires land on the distributor - and yes I know there is a factory alignment position for them, but that involves pulling the dizzy and turning the oil pump drive only to find out you moved it to far or not far enough.

 

[dickeymoore]

So after switching the wires don't I have to remove the distributor to get initial base timing?

 

[78Delta88]

You might, but won't know until you have a timing light on it first. But it should be back to "normal" and only have to move it a little to get back to correct base timing.

 

[57 Handyman]

Pull distributor and redo once again. Alignment of distributor housing (vacuum advance canister) is not tied to rotor pointing toward #1 cylinder when installed.

 

[dickeymoore]

I got it Thanks, All

 

[Ernest]

If you really want to do things more thoroughly...