Jake,
We are duplicating effort here. I'm going to post the PMs you have been exchanging with me so that the rest of us might learn from your problem and hopefully. the solution. No more PMs please.
Quote Originally Posted by coloradodave - 09-08-2014 04:43 PM
Jake,
Is your motor completely stock?
If not, what all has been done to it?
Did you take off the distributor cap and try to turn the rotor?
If so, did it 'snap' back?
Your last statement said it would advance 10 degrees if you rev it. If I understand you, your initial timing is 13* and when you rev it you are getting 10* more, for a total advance of 23* when reved?
Please answer these questions one at a time and we'll see if we can get you fixed up.
Dave
Quote Originally Posted by Mopar-Charger - 09-08-2014 05:29 PM
I have upgraded Cam - Purple shaft .509" lift
Dual Plane perfomer Intake
750 Holley
I did that and the rotor did snap back, well it wouldn't torn freely*
Yes It started at 13 I with throttle it would go up to 23 total timing. Not sure if the timing is close to what it should be? I had to place a piece of tape on harmonic balancer because the stock hash mark would be under the water pump when i tried to look at it. However TDC was still at 0.
Right now it runs fine low end, no smoke, stuttering, but the top lags per-say. It used to climb quickly through the RPMs now it just takes it's sweet old time.
Jake,
Since the rotor snapped back we can assume that the advance mechanism is working. The rotor will only turn about 1/8 of a turn due to the advance stops. It sounds like someone may have modified the distributor so that the advance is limited to 10*, which is a very common tuning trick.
Your total advance is not near enough at 23*. You should have about 34-36* total, which is pretty much impossible to tell if you can't see the timing mark. It's also possible that the outer ring on the balancer may have 'slipped' and that's why the marks don't line up.
Here's what I would do:
1) Get the motor up to operating temperature.
2) Loosen the distributor hold down bolt until you can turn the distributor.
3) Advance the timing by turning the distributor 1/4" CCW (small block) and then snug the bolt down.
4) Shut motor off and let sit for 3-4 minutes.
5) Restart motor.
6) If motor turns over easily and starts, repeat above (#3, 4 & 5).
7) At some point, the motor won't want to turn over or will try and kick back. When this happens, turn distributor back the other way 1/4". This point will be your best initial advance.
8) Road test the car to make sure there is no 'ping' on acceleration.
9) Let me know what happens. I wouldn't be surprised if the initial ends up being 20-24*.
After this, you need to find out why your timing marks are so far off. Save it for another day.
Dave
