Dwelling on the topic of Dwell, To continue to Dwell or Not to Dwell Options

[ctc911ctc]

'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.



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.

[Superhawk996]

Really I’m not trying to be a jerk. (IMG:style_emoticons/default/beerchug.gif)

Some don’t like my long answers.

Low dwell angle = weaker spark.

As the rub block wears, dwell angle increases. It’s basically doing a tune-up and starting out of tune. Don’t forget a tiny dab of silicone grease on the rub block and/or felt strip to minimize rub block wear.

More info:
https://www.denso-am.eu/news/deneur21_08_ig...ge%20the%20coil.

[Spoke]

I’m not trying to be a jerk.

Me neither. I've got nothing to add about adjusting dwell.

My 2 cents is there are electronic points available that do away with points, cap, dwell; are easy to install; work amazingly well and are robust. I've been running Pertronix for many years and would never consider using points/cap/dwell again.

[930cabman]

I’m not trying to be a jerk.

Me neither. I've got nothing to add about adjusting dwell.

My 2 cents is there are electronic points available that do away with points, cap, dwell; are easy to install; work amazingly well and are robust. I've been running Pertronix for many years and would never consider using points/cap/dwell again.

My new Pertronix setup just arrived, the days of me filing/adjusting points might be over. I recently changed on my /6 conversion, day and night