Points and Dwell setting, Yes I forgot how...I know !!! YOU DUMBASS! |
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Points and Dwell setting, Yes I forgot how...I know !!! YOU DUMBASS! |
Steve Thacker |
Aug 3 2007, 10:50 AM
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#1
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UMMMPH Yea Baby Yea ! UMMMPH Group: Members Posts: 1,089 Joined: 8-January 03 From: Pickerington, Ohio Member No.: 113 Region Association: Upper MidWest |
I can't for the life of me rember how to set dwell properly on cars. I have been setting points since I was a teenager. I get this thing on a crane optical back when I first bought the car in 2000 and it went belly up last week.
I put in new points, cap, rotor ( non rev limited), condenser, sparkys, wires oh yea a new coil in the car before I began ( back to simple old skool). yea right.... (IMG:style_emoticons/default/dry.gif) Firing order on wires set to 1-4-3-2 CW. I set the points to .016 and I can get the car started. I put a digital meter on the + and - on the coil and got the car to start with some dizzy turning ( damn it is sensitive). Well... the dwell on the meter is showing 88.8 and yes it is set on dwell. I go back make sure the point shoe is straddling the lobe on the dizzy shaft and check the gap again. Still at 016. OK I'm good... Then I proceed to start the car up again and get my timing light in place to set the timing. I set the timing light dial to 27 degrees and point it at the timing whole and look for my marks. I have the old lady rev it up to 3500 and hold it steady (great gal she is). (IMG:style_emoticons/default/biggrin.gif) I look for the white mark as I'm adjusting the dizzy and pull it into view and place it in the V notch. I have her take her foot off the pedal and I take over. Well...the damn car will not rev past 4k when it is floored! The throttle body butterfly is wide open and the car is laboring. Fuel pressure is at 29lbs and steady (Adjusted valves back a year ago and have only put 40 miles on the car) What gives...am I missing something simple here? Please help fellas I'm pulling my hair out. Must be halfziemers setting in. |
ctc911ctc |
Aug 24 2024, 02:16 PM
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#2
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Senior Member Group: Members Posts: 917 Joined: 9-June 18 From: boston Member No.: 22,206 Region Association: North East States |
(IMG:style_emoticons/default/icon_bump.gif)
Looking at dwell again to fix my idle challenge Found this gem Also was surprised to see I have been here before (IMG:style_emoticons/default/confused24.gif) |
914_teener |
Aug 24 2024, 04:54 PM
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#3
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914 Guru Group: Members Posts: 5,245 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
(IMG:style_emoticons/default/icon_bump.gif) Looking at dwell again to fix my idle challenge Found this gem Also was surprised to see I have been here before (IMG:style_emoticons/default/confused24.gif) So yea...how does setting the static gap on breaker points effect your idle speed? The Krusty answer is the points are set first and then your timing and then you adjust the idle, not the other way around. Next thing is that the dwell angle is only a "function" (a result of) the point gap measured in degrees. If it's wrong you loosen the screw on the points on the breaker plate and gently take a screwdriver in the slot of the breaker plate and GENTLY move it to open the points or close the gap. IIRC wider point gap decreases the angle and narrower increases the dwell angle. Therefore dwell angle:breaker point gap. The dwell angle is functionally the duty cycle of the coil and is time based to give the coil winding enough time to collapse to produce voltage high enough (through the secondary winding) to jump the spark gap when the rotor hits the contact on the distributor cap. This can.... if grossly wrong, effect timing. That's it...nothing more. You set everything else...timing...idle speed after this is done and correct for the engine. RIP John...you are missed. |
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