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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

390 timing

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Old Aug 18, 2012 | 10:58 AM
  #16  
orich's Avatar
orich
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From: **** hole San Jose ca.
If it has the duel ported vacuum advance dizzy with smog heads they set at 0.21...
orich
 
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Old Aug 19, 2012 | 07:58 PM
  #17  
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Ford_Six
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From: The Big, Oregon
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.21 would be huge- .021, or about two matchbook covers. Not the most precise way, but it did work reliably. I used to work with a guy who would use a single cover for V8s and two for fours and sixes, said he hadn't even used a feeler gauge on one in years.
 
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Old Aug 19, 2012 | 10:21 PM
  #18  
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orich
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From: **** hole San Jose ca.
Originally Posted by Ford_Six
.21 would be huge- .021, or about two matchbook covers. Not the most precise way, but it did work reliably. I used to work with a guy who would use a single cover for V8s and two for fours and sixes, said he hadn't even used a feeler gauge on one in years.
I mic-ed match book-cover a few times and it was a close 0.17 plain white covers. But did come across some that were 0.22 They had the inset colored printing on them. I have only one truck manual and it's for my 1971 Points listing as follows

390 2-V, F100 at 0.21.
390 2-V, F250, F350 at 0.17
I-6 300 1-V, F100 at 0.27,
I-6 300 1-V, F250 AT 0.25
302 at 0.21 F100,E100,E200,E300
240 1-v at 0.25
But who knows what's been changed under the hood since beening new..
orich
 
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Old Aug 22, 2012 | 08:27 AM
  #19  
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Wildcat455
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From: Phoenix, Az
LOL@ the Matchbook cover trick! Brought back some memories there...
My Dad showed me that when I was a kid. Another handy part is you can use the "Strike Strip" on the matchbook to clean up your point contacts. We always had a few books of matches in the glovebox, but I also kept feeler gauges in my tool box, (Along with a spare set of points) which was mounted under the hood.
 
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Old Aug 24, 2012 | 06:15 PM
  #20  
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Wildcat455
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From: Phoenix, Az
So it's been 12 days since the OP's last post... Is it safe to assume he got it figured out?
 
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Old Aug 24, 2012 | 07:02 PM
  #21  
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CougarJohn
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From: Cupertino
Set the points at .018 and make sure that they are tightened down to the plate and that the ground strap inside the distributor is also tightened and electrically connected. Clean out and oil or finger grease from between the points with the cleanest handkerchief that wifey can give you.
Make sure that the distributor vacuum line is connected to the port above the throttle plate on the carb.
6-8 degrees advance will work just fine with the vacuum line plugged.
These motors are very forgiving. Right, Jowilker?
 
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