1 tooth off?
Thread Starter
Instructor
Joined: Nov 2008
Posts: 170
Likes: 0
From: Odessa Tx
1 tooth off?
Is it possible to be one tooth off on the dizzy and the car will start up fine and timing will set fine, but once you drive it, for it to cut out and pop through the air cleaner tube? Ive tried everything else just wondering if I should see if im a tooth off?
One other question. I removed the egr. Do I have to reprogram something for removing it?
One other question. I removed the egr. Do I have to reprogram something for removing it?
Drifting
Joined: Dec 2005
Posts: 1,313
Likes: 2
From: High Ridge Missouri
Short answer no. If you installed it one tooth off, but then set timing to spec that would compensate for the one tooth off and it wouldn't be one tooth off anymore.
You did disconnect the EST connector when you set timing?
You did disconnect the EST connector when you set timing?
Thread Starter
Instructor
Joined: Nov 2008
Posts: 170
Likes: 0
From: Odessa Tx
Yes sir, I did disconnect the est while setting the timing to 6*. It runs just fine and the motor is all there when you "baby it" and drive it without getting too much into the trottle. But once you try to give it a load it starts to gain power and all of the sudden, it stops in its tracks and sounds like it sucks air. That is with the MAF plugged in. If I unplug it, it runs better on the top end and worse on the bottom end. I have replaced the MAF and the burn off module but still the same results....
Drifting
Joined: May 2006
Posts: 1,428
Likes: 7
From: Chewelah Wa
I don't think you would even come close to getting it to 6 degrees being a tooth off...6 degrees is 6 degrees regardless of where the tooth is. If you have a vac leak, idle would be very erratic....try spraying around with starter fluid, you will find it very fast. My egr is disabled and it runs fine with no codes.
Race Director
Joined: Aug 2000
Posts: 11,470
Likes: 764
this sounds familar - i went through pretty much the same thing last year on my 85 - turned out that it wasn't a timing thing, but i had the valves on one cylinder too tight - i went through the distributor indexing and timing thing several times trying to solve the problem, without any luck.
i've adjusted hydraulic lifters now for probably 40 years, but my 85 gave me fits. here's a method that worked out great for me. i tried something a little unconventional on adjusting hydraulic lifters. one thing that always bothered me is the statement "spin the pushrod until resistance is felt" that seems a little too subjective to me. so i tried this: i set "zero" lash with a .0015" feeler gauge while slowly turning the adjusting nut. when i felt the feeler gauge grab, i was fairly confident i was about .001 from zero lash. at that point, i turned the adjusting nut 3/4 turn. if you think you might have a tight cylinder, give this a try - it worked for me...
i've adjusted hydraulic lifters now for probably 40 years, but my 85 gave me fits. here's a method that worked out great for me. i tried something a little unconventional on adjusting hydraulic lifters. one thing that always bothered me is the statement "spin the pushrod until resistance is felt" that seems a little too subjective to me. so i tried this: i set "zero" lash with a .0015" feeler gauge while slowly turning the adjusting nut. when i felt the feeler gauge grab, i was fairly confident i was about .001 from zero lash. at that point, i turned the adjusting nut 3/4 turn. if you think you might have a tight cylinder, give this a try - it worked for me...
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Team Owner
Joined: Jul 2004
Posts: 28,470
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From: Hartford WI
Yes sir, I did disconnect the est while setting the timing to 6*. It runs just fine and the motor is all there when you "baby it" and drive it without getting too much into the trottle. But once you try to give it a load it starts to gain power and all of the sudden, it stops in its tracks and sounds like it sucks air. That is with the MAF plugged in. If I unplug it, it runs better on the top end and worse on the bottom end. I have replaced the MAF and the burn off module but still the same results....