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Author Topic:   Timing and electrical question
ryan
Member
posted August 19, 2002 09:19 PM
I was wonder what causes our timing mark to be eratic when we timing it. The module,coil,rotor,cap,plugs,wires, pickup coil are all fairly new and high perf. Also how does everyone rig up their mechanical advance. thanks


BK19
Member
posted August 19, 2002 10:35 PM
it could be the gear like i learned on here but it ended up being my timing light was gone goofy


jammin
Administrator
posted August 19, 2002 10:56 PM
Your advance weights are bouncing around. If you bring the RPM a little more when you time it(watch when it stops bouncing as you bring up the throttle a little more), they will stabilize and then get the proper timing and it will be set.

jammin


outlawstock17
Member
posted August 20, 2002 05:19 AM
a lot of guys simply lock the distributor out. if you do this you'll have to run all of your timing initally. there won't be any advance in the distributor. if your starter has a difficult time spinning the engine over in this configuration, get it spinning with the starter before you switch the ignition on.


ryan
Member
posted August 20, 2002 04:00 PM
I was going to buy a new gear anyways so I will do that. Jammin do you think I need heavier springs or maybe new ones or do I just live with it.


jammin
Administrator
posted August 20, 2002 05:38 PM
The distributor I have does this somewhat as well......I still run it because on the lower end, the retard gives me a little more off of the turns and makes it easier on restarts etc. Mine does the same thing, been running it with no problems. I dont think you will hurt the motor because it is retarded when you are moving the timing around, but everyone has their way of doing things. Some will weld the advance as well. If you put a harder set of springs, the motor will probably run differently. I always run the lightest springs I can and so that the weights advance to the maximum limit possible in the shortest time after 2 or 3k rpms. Mine will stop bouncing about 2800 and you can set the timing there.

My 2 cents.

jammin


ryan
Member
posted August 20, 2002 09:48 PM
Mine still jumps around at 3,000 but I am usually running the pedal while dad times it. I wonder if its not jumping at all but maybe the spark is weak at a certain time. Or maybe its getting some interference with another wire. Every once and a while I will pick up a miss and it will go away around 3500. Maybe thats the cause. I would personally like to see it stay put just to put my mind at ease even though theres only two nights left. (thank god this year is over!!)


dirtbuster
Member
posted August 21, 2002 09:41 AM
We have our dist locked out and ours still jumps until you get it revved a little. It always has from the time it was new so I wouldn't worry about it. Even a stock motor gets more stable when you rev it up.


booting left
Member
posted August 21, 2002 11:00 AM
The ring on the balancer is fine. Anybody have any ideas on that miss. If its not electrical could it be in the carb?


Donnie Ross
Member
posted August 22, 2002 10:12 PM
check for cam walk,and the end play in your distributor,do you use a thrust button on the cam? if it moves around timing will change.


merlinmech
Member
posted August 23, 2002 12:35 PM
Mine also does that. With new motor it does'nt, but the more I run it the worse it gets. Have been running them that way for 5 years now and never had any problems. I just put it down to timing chain getting loose. Mine never quits moving, even at 5000 rpm. I would also like to KNOW what causes this.


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