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> Dwelling on the topic of Dwell, To continue to Dwell or Not to Dwell
ctc911ctc
post Oct 8 2024, 02:17 PM
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'74, 2.0L 24K miles, all original

I have been trying to get the dwell angle to the specified number between 44 and 50 degrees. This has been a real effort

I rebuilt the Distributor, I thought I did a good job but the vacuum plate was being touched by the points. The shaft that the spring of the points hinges on has an extension that is used to anchor the points. This extension was touching the plate below the one that the points were mounted on.

Attached Image

The red arrow points to the top of the shaft where the other side there is a protrusion used to anchor the points to the top plate. This protrusion was rubbing against the bottom plate which is shown by the green arrow.

Sooooo, I did what all of us would do and ground the shaft to a few mils, just enough for it to anchor and NOT touch the lower plate.

Next I set the points to .014m to approximate the dwell angle and it was 25deg - grrrr, supposed to be between 44 and 50........sigh
Then I sent it to .013 and it was 55deg
Then to 0.12 and it was 15 deg.

I tried another Dwell tool (same results) and then I bought a new Distributor.

I bought it from a very experienced rebuild shop that was suggested by members here, It arrived and I installed it. Capacitor needs to be mounted on the side of the distributor that is toward the rear of the car.....learned this the hard way.

I now can get the dwell to 40 degrees - I am 4 degrees off. I was thinking of chasing this but decided I would check in with the Dwell team here at 914World.......should I chase 4 degrees?

Any direction as to this?

(IMG:style_emoticons/default/confused24.gif)

ALSO - is there a correct method for setting the points? Meaning, I sometimes have the points "click" after I pull the feeler gauge out of the points, should there be ANY movement of the points after the feeler gauge is removed?

Signed: Long on Theory, Short on Experience.
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Superhawk996
post Oct 9 2024, 07:27 AM
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FWIW - I actually like points. I’ve never been left walking by a bad set of points.

The problem with any modern fuel injection or electronic ignition is one of the failure modes is instantaneous failure that completely disables the system and there is nothing you can do but walk or wait for the tow truck.

Though I’ll be the first to admit fuel injection and electronic ignitions rarely fail, it really sucks when they do.
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worn
post Oct 12 2024, 07:27 PM
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QUOTE(Superhawk996 @ Oct 9 2024, 06:27 AM) *

FWIW - I actually like points. I’ve never been left walking by a bad set of points.

The problem with any modern fuel injection or electronic ignition is one of the failure modes is instantaneous failure that completely disables the system and there is nothing you can do but walk or wait for the tow truck.

Though I’ll be the first to admit fuel injection and electronic ignitions rarely fail, it really sucks when they do.

I once bought and properly installed new points. Drove maybe fifty miles and the points mechanism simply broke. one of those cheaper in manufacturing than it should have been stories, but I was still calling for a flatbed.
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Posts in this topic
ctc911ctc   Dwelling on the topic of Dwell   Oct 8 2024, 02:17 PM
Superhawk996   should there be ANY movement of the points after...   Oct 8 2024, 02:27 PM
ctc911ctc   Ok, no is the answer...... How much friction shou...   Oct 8 2024, 02:42 PM
930cabman   Ok, no is the answer...... How much friction sho...   Oct 8 2024, 03:06 PM
ctc911ctc   great guidance as to the .001 - will try it tomorr...   Oct 8 2024, 03:48 PM
StarBear   Yep, I always use the feeler that’s .001 larger ...   Oct 8 2024, 04:57 PM
r_towle   It’s a matchbook cover. No change when removed. ...   Oct 8 2024, 06:35 PM
ctc911ctc   thank you everyone for your responses Once last q...   Oct 9 2024, 06:59 AM
Superhawk996   Once last question if you have a dwell angle of ...   Oct 9 2024, 07:04 AM
StarBear   Once last question if you have a dwell angle of...   Oct 9 2024, 07:08 AM
Superhawk996   Really I’m not trying to be a jerk. :beer2: ...   Oct 9 2024, 07:08 AM
Spoke   I’m not trying to be a jerk. Me neither. I...   Oct 9 2024, 07:18 AM
930cabman   I’m not trying to be a jerk. Me neither. I...   Oct 9 2024, 12:14 PM
Superhawk996   FWIW - I actually like points. I’ve never been ...   Oct 9 2024, 07:27 AM
worn   FWIW - I actually like points. I’ve never been...   Oct 12 2024, 07:27 PM
MikeK   Many years ago, when I worked at an independent VW...   Oct 9 2024, 11:25 AM
ctc911ctc   I am usually good with instructions, however, I am...   Oct 9 2024, 05:45 PM
930cabman   Many years ago, when I worked at an independent V...   Oct 14 2024, 12:56 PM
TheCabinetmaker   I don't use a feeler gauge. Eyeball it, tighte...   Oct 9 2024, 02:41 PM
technicalninja   Many years ago, when I worked at an independent V...   Oct 9 2024, 04:00 PM
StarBear   Give the coil wire something to ground on or you...   Oct 14 2024, 07:55 AM
Superhawk996   Circled in green, thin arrow in red. Should be sel...   Oct 9 2024, 07:30 PM
rgalla9146   Circled in green, thin arrow in red. Should be se...   Oct 13 2024, 12:01 AM
ctc911ctc   Got the dwell to 45, car never ran better, power t...   Oct 12 2024, 06:24 PM
StarBear   Got the dwell to 45, car never ran better, power ...   Oct 13 2024, 06:58 AM
technicalninja   [quote name='technicalninja' post='3172009' date=...   Oct 14 2024, 08:56 AM
StarBear   @technicalninja OK, I'm getting there. I...   Oct 15 2024, 11:08 AM
technicalninja   Harbor freight cheapy https://www.harborfreight.c...   Oct 15 2024, 12:27 PM
StarBear   Very helpful! Thanks!! :D   Oct 15 2024, 02:42 PM


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