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Tech- - Engine / 318 pinging
« on: April 25, 2012, 01:07:20 PM »
Many thanks for such a quick response!

Tech- - Engine / 318 pinging
« on: April 25, 2012, 12:30:02 PM »
Thank you, POLARACO and dana44!   I think I know what you are saying, both.  :-)
My springs are light: I agree.  It seems to advance on just a touch.  Thank you.
I do have to check the total mech advance... It might be in the 25 range, so I may need to back off the crank setting.

Finally, just a follow-up:  What SHOULD my target IDLE speed be?  I ask because when the headlights are on, and I'm at a light in neutral, do I want that red dial straight in the middle or does it HAVE to be "charging" to the right?

Good day, All!

Tech- - Engine / 318 pinging
« on: April 24, 2012, 11:31:30 AM »
That was a fine read/thread re: 318 pinging!

If anyone is still listening, I'm looking for advice on the proper timing of a '66 300 440 with a mechanical Mallory with Pertronix and Mallory Super Coil (or something super Mallory).
I only run the highest octane I can get, and, like previously mentioned, throw in an octane booster in the summer or whenever I can remember... Some stations sell the same "brand", but their gas doesn't always smell the same.... [ I miss that lead ethyl smell.] 

My thermostat is the 180 and my water temps are between it and 190 down the highway, and up to 210-220 at a stop light.

I don't ping or knock or make any sound with the current set up:  TOTAL advance is 12.5 degrees BTC.  

My question starts with this: The '66 manual states in a chart a setting for vacuum distr (less than 12.5) and one for mechanical (12.5 at the upper RPMs).   BUT, further down on the same page, I can read "Basic Timing" is 12.5 BTC.   AND, if I remember, correctly, the reading portion in the manual talks about "basic timing" at idle...   I'm confused and I'll re-read it all, again. 

I wanted to know if I'm silly to advance the timing and test until pinging with a full load (1000 pounds of people) and WOT - then, back off?  

Thank you!

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