setting timing need help

[beerthirty]

Is there a good round about number for setting the timing or do you just do it by ear? what would you suggest setting it at for a 302. And what does the advancing and retarding the timing change I know ite the spark but is it better for advance or move back. Thanks

 

[Tito]

I believe ~ 12* before TDC is optimal for out 302s.

 

[bronko69er]

A good round number for base timing would be 10*+/- a few.
It is gereally best to get as much advance as you can without pinging.
Can you reword your second sentence a bit, I didn't wquite catch what you're asking?

 

[beerthirty]

jus wondering if one way or the other gives you more power

 

[bronko69er]

Yes, generally you want as much advance as it will handle without pinging.

 

[beerthirty]

sounds good I dont know what the problem is, im gonna check my timing but I was just started my bronco and its running like its missing but I was just driving it ten minutes before and it was fine its really strange any idea's

 

[Tito]

The motors came stock retarded to pass emissions (well the later models and all CA sold at least). I often have to take mine way back to get it to pass but to get power you want it advanced.

 

[beerthirty]

sounds good. I dont know what the problem is, im gonna check my timing but I was just started my bronco and its running like its missing but I was just driving it ten minutes before and it was fine its really strange. any idea's

 

[COBlu77]

It also depends on altitude. Start at 12 BTDC and you might get away away with up to 20 degrees at our altitude. When I ran a stock 302 12 worked best and when I had a cam, headers and some other go fast goodies it liked 20 BTDC better. If you're up to a trip to Arvada this weekend, I'll help you set it.

 

[surfer-b]

If the timing chain and gear have not been changed that could be the prob as far as the missing in the engine you are having.

 

[302fix]

Check to see if the vacuum advance line or a plug wire came off.

 

[beerthirty]

evrything is hooked up, I cant figure out what is going on it was running fine and I just put on a new air filter, It was running great and as I was walking into the garage to put the tools away it started having a ruff idle but when I rev it up it sounds fine.

 

[bronco213]

if it was running good and all of a sudden it runs roug ,,its prolly starting to leak at the float vavle