How hard is it to properly adjust timing without a light?

"Chuck 2(O=[][]=O)2" (pompei426) 05/04/2014 at 12:37 • Filed to: None

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I don't have a light and a few o2 owners from yesterday's Bethesda C&C said it was off. I know how to do it, but I don't want to make it worse. You are supposed to listen to it, but is the best sound going to be the best setting?

And yes, those are Hellas on a Chevy Van.

wontacceptthis > Chuck 2(O=[][]=O)2 05/04/2014 at 12:51

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The way I did it on my bug was as followed:

1. Advance the timing until the idle speed reaches it's peak. It should slow down if you go past this point in either direction.
2. Back off a degree or two.
3. Shut it down.
4. Try starting it a few times - if it is hard to start, retard the timing.
5. Drive it hard up some hills. Go WOT through the whole rpm range. If it pings, retard the timing.

Chuck 2(O=[][]=O)2 > wontacceptthis 05/04/2014 at 13:06

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Thanks, will definitely try this method.

BlythBros. > Chuck 2(O=[][]=O)2 05/04/2014 at 13:44

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Can't you rent a timing light from a car parts store for free?

crowmolly > Chuck 2(O=[][]=O)2 05/04/2014 at 13:51

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Can you set timing by ear? Yea. Will it be right? Probably not. You can end up with more advance than you need. Don't forget to disconnect the vacuum can (and plug the hose) if you've got one.

I have this one because I have an MSD box:

http://www.summitracing.com/parts/ino-3551…

Works great and is pretty inexpensive.

AMG-tech > Chuck 2(O=[][]=O)2 05/04/2014 at 16:28

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Trust me, just rent a light or pick one up from harbour freight for maybe $15.