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If I remember right, it's the amount of time the points stay closed. How long they stay closed for the coil to zap the plugs. The longer the dwell the longer the spark. Too long a dwell then it uses up to much juice and there won't be enough time to recharge for the next zap. Too little then the spark won't be hot enough.
What else can I help you with?
How do you set the dwell on a 1974 350 Chevy truck?
attach a dwell meter and set the points for 30 degrees.
How do you set dwell with out engine running?
My advice would be to set the points at .020" with a feeler gage to get the engine running, and then use a dwell meter to set the dwell after the engine is running.
What is the points gap on a 350 Chevy?
When set properly, the gap would probably be about .018". The correct way to set the points would be to hook up a dwell meter and adjust the points for 30 degrees dwell.
What do the points get set at in a 534 engine?
30 degrees dwell
What is the point gap on marine 305 Chevy?
Use a dwell meter to set the points at 30 degrees dwell.
What is the ignition gap points dwell for a 1973 Pontiac 400?
If you set the points at 30 degrees you will be fine.
How do you set the dwell on an old school mallory points distributor?
i always had a meter with dwell on it you adj your points base and keep the gap the same Addition to above: Haven't messed with a points ignition in quite some time, but still have a Sun distributor machine and remember how to do it, if it's a dual point distributor the easiest way is to block one of the sets of points with a matchbook cover or thin piece of cardboard in between the points and set the dwell on the other set, then put the matchbook cover between the point set you just set the dwell on and set the dwell on the other set, then remove the matchbook cover and your done. If you're doing this on the car (as opposed to doing it on a distributor machine) you should then re-set or at least check the timing.
What is the igntion points to be set at for 1970 buick 350?
28 degres dwell
How do you set point gap for a 1972 Chevy 350 engine?
Use a dwell meter to adjust the points to 30 degrees dwell.
Adjusting points small block Chevrolet 350?
use a dwell meter to set points to 30 degrees
How do i set the dwell on a 327 1968?
To set the dwell on a 1968 Chevrolet 327 engine, you'll need a dwell meter. First, connect the dwell meter leads to the ignition coil's negative terminal and ground. Start the engine and let it warm up, then check the dwell reading. Adjust the points gap using a feeler gauge to achieve the desired dwell angle, typically around 30-32 degrees for the 327, by loosening the points screw and repositioning the points as needed.
How do you set the points on a gm ignition system?
It depends on the year. For quite a while the points could be accessed through a little hole on the side of the distributor cap. The points were installed "close enough" to get the engine started then you would use a "dwell tach" to set the points through the little hole. But for the record, newer GM engines don't use points. The "dwell tach" the previous poster is referring to is a combination tachometer and dwell meter that can be purchased at most auto parts stores. The points should be set for 30 degrees dwell. Most GM cars stopped using points and went to HEI around 1974.
