There's a way to adjust the timing using the adjustment screw on the points through an opening in the distributor cap, which has a sliding metal cover over this opening. it involves starting the engine, then turning the screw in one direction until the engine nearly stalls, then in the other direction--something like a one-quarter or one-half turn. can someone describe this procedure from the time i first take the new points out of the box?
Re: 1964 pontiac catalina tuneup without timing light
This also does not adjust the timing all this does is adjust the spark gap and create a hotter or colder spark the only way to adjust the timing on the Pontiac engines is with a timing light and a 1/2 inch wrench it should be set somewhere between 12 and 16 degrees Btdc
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The Sunfire 03 to 05 has one adjustment screw at the top. The back of the headlight has a tab that has to fit into a hole in the radiator support make sure it is in there or the headlight will be loose. I found after breaking the two adjustment screw plastic brackets. Remove the parking light brace from the radiator support one screw and as you carefully slide the headlamp in while pulling out the parking light. Hook the back of the bracket on the radiator support. If you break the plastic adjustment bracket (it twists in like a headlight bulb, but you can't buy it. Thank you GM) remove the broken piece of plastic and the rubber washer and spread it with plastic epoxy sets in 5 min and full hard in 24 hours, but hard enough in one hour and you can now beat it to death and it won't break why didn't GM make it permanent?
If you haven't had a tune up recently, get one! If the plugs, points, rotor, distributor cap have not been changed within 2 years change them and have the engine timing adjusted. Regular tuneups are REQUIRED on high performance engines like yours.
There are feeler gauges (extremely thin) to adjust the points gap. First find the proper gap for your model vehicle, and then purchase a gauge. these gauges have something like 10 different thicknesses, for different points, so make sure it includes the exact gap that you need. I remember in my youth adjusting the gap with cigarette wrapper paper, it seemed to have the proper thickness to get you out of dodge. Also remember that you have to rotate the engine until the points are in the open position, in order to adjust them.
If the idle adjustment screw has NOT been touched or adjusted, turn the distributor slightly in either a counter clock wise or clockwise rotation until the recommended idle RPM is reached. This should get you within the ball park. The only correct way to set the timing for optimum engine performance is to use a timing light.
hi no not really a new distributor, have you tried adjusting the idle screw on the carb? or even on the cable? you might find it could be something as simple as them two things, a frayed cable could cause it, or just the idle screw on the carburetor might need adjusting, also if it has a mixture adjustment screw on the carb could also do it, well there is a couple of things to try first.....hope that helps
The timing is 2 1/2 degrees BTDC. The point gap is .016 and the dwell is 30. To set the dwell turn the adjusting screw clockwise until the engine starts to misfire and then back it off 1/2 turn. Hope this helps.