Re: [FWDLK] 331 hemi timing questions

[Ray Jones <hurst300@xxxxxxxxxxxx>]

Hi Chuck;
The easiest and most positive way to check for TDC is to remove the #1 
spark plug, and insert a straw in the plug hole. Place a socket and 
breaker bar on the crank pulley nut. Slowly turn the engine over in the 
proper direction of rotation, Checking the rotor to make sure its 
moving towards #1, and watch the straw. When it stops moving up and 
starts moving down you just went past TDC. Back up and slowly rotate 
until the straw just stops. Now look for your balancer mark and see 
where it is. Any mark ahead of this location is advanced and any mark 
behind it is retarded. Look real hard as some paint may have filled in 
the mark.
You will then know if the mark is for TDC, 10°, or if the Balancer 
outer ring has migrated some.

Let us know, Ray in Mena



On Jul 5, 2008, at 8:01 PM, Charles Deyoe Jr. wrote:

I just installed the new pretronix ignitor on my 55 new yorker with the 
331 hemi.   I adjusted the timing but have a question that I can not 
find the answer too.

I adjusted the timing as per the service book at 6 Deg BTDC and on the 
harmonic balancer there is a line painted on it from the rebuilder 
about two years ago and a dot on each side I am guessing is 10 deg 
before and after .

My question is when I shine the timing light to time the car the timing 
 is between the line and the lower dot on the balancer{ as close to 6 
as I can get}  is this location before or after TDC ?  as the car runs 
and I just test drove it 45 miles { went for a ice cream run }  and the 
only think I found is when I I went to start the car it was very slow 
to even turn over at first.  I have found this happens if I do not 
change the battery every three years and the new battery I ordered came 
in a little small and I told them I need the larger size to fit 
properly.

Should I readjust the timing to read above the line when I look down 
with the timing light ?  and I also noticed when i was adjusting it 
today that when I gave the car a little gas the timing went past the 
lower dot and returned to about 6 deg when I let off as I know this 
what should happen

I have not tried any other test so If any one has advise let me know.  
thanks again.

Chuck Deyoe
1955 new yorker

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