high rpm miss

« **on:** August 03, 2011, 10:27:19 PM »

Getting a miss around 4800 rpm. if i set the timeing at 8 degress i get a miss so i retard it to 4 degress the miss goes away but the motor will only turn 4500 rpm. what do you guys think distributor wore out? DID A COMPRESSION CHECK there all within ten pounds! distribuator is about 10 years old mallory YL with a ignitor 3 pentronics unit bran new . wondering if any of you ever hered of this before.

« **Reply #1 on:** August 03, 2011, 11:44:32 PM »

What kind of motor are we dealing with?

« **Reply #2 on:** August 04, 2011, 01:02:44 AM »

big olds 468 ci

« **Reply #3 on:** August 05, 2011, 07:00:10 AM »

Set the timing at 36-38* at bout 2500 rmps. See how she runs on the top end

« **Reply #4 on:** August 06, 2011, 01:59:10 AM »

If its intermittent Look for a loose ignition wire or connection, maybe even the switch has become loose inside rom vibration.

« **Reply #5 on:** August 12, 2011, 08:43:47 PM »

ok lets start with the standards. carfully look at the points they may be old or dirty. also when was the last time you tuned it up?

« **Reply #6 on:** August 13, 2011, 10:26:15 PM »

No points, brand new pentronics ignitor 3 conversion. but the distributor CAP is 10 years old!! replaced it with new runs good now..thanks for the imput guys.

renegade

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