Author Topic: DId a 69 Z use the capacitor on the coil?  (Read 6483 times)

BillOhio

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DId a 69 Z use the capacitor on the coil?
« on: June 16, 2016, 11:27:35 AM »
I copied this from a post Danny made. John left this reply. I am pretty sure i had seen them with the capacitor but i didnt find it in the AIM. Thanks!
coil bracket with the "notch" is not unique to the Z/28; originals don't have the notch, although the eBay sellers want you to believe they did, so they can claim they're "rare". The one in the photo is clearly from another application, as it has the screw to attach the radio noise suppresson capacitor, which was never used on a '69 Camaro.
1969 Z28, Burgandy, numbers matching, 12,900 miles
1968 RS 327 4 speed
1967 Plymouth GTX Hemi, 4 speed, dana
1961 Chrysler 300G convertible

ZLP955

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Re: DId a 69 Z use the capacitor on the coil?
« Reply #1 on: June 16, 2016, 11:36:51 AM »
Bill I don't have access to my '69 AIM right now, but I was under the impression the capacitor was shown in UPC U63. Perhaps I'm thinking of the capacitor on the voltage reg?
Tim in Australia.
1969 04A Van Nuys Z/28. Cortez Silver, Dark Blue interior, VE3, Z21, Z23, D55/U17, D80, flat hood.
Sold at Clippinger Chevrolet in Covina, CA.
AHRA Formula Stock at Lions Dragstrip, NHRA E/MP at Pomona Raceway

cook_dw

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Re: DId a 69 Z use the capacitor on the coil?
« Reply #2 on: June 16, 2016, 12:32:36 PM »
The way I interrupt the AIM on this is that the U63 and U69 are combined and there are callouts for the U69 option.  Look at the whole AIM page including the title block.  This may help answer your question.  BTW no capacitor on the coil bracket.

BillOhio

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Re: DId a 69 Z use the capacitor on the coil?
« Reply #3 on: June 16, 2016, 02:39:50 PM »
My bracket shows no sign of anything being attached to it, no threads in hole. Here is a picture from the Dusk blue car 69 Zee.
1969 Z28, Burgandy, numbers matching, 12,900 miles
1968 RS 327 4 speed
1967 Plymouth GTX Hemi, 4 speed, dana
1961 Chrysler 300G convertible

cook_dw

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Re: DId a 69 Z use the capacitor on the coil?
« Reply #4 on: June 16, 2016, 03:11:19 PM »
I guess you could say never say never.  Still need to investigate more.  Could it have been added at some point early in its life.?.  Maybe. Is there a way to know 100% probably not.

BillOhio

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Re: DId a 69 Z use the capacitor on the coil?
« Reply #5 on: June 16, 2016, 03:17:24 PM »
I think with my not having any signs of threads I should probably not put one on it. Have a good one Darrell
1969 Z28, Burgandy, numbers matching, 12,900 miles
1968 RS 327 4 speed
1967 Plymouth GTX Hemi, 4 speed, dana
1961 Chrysler 300G convertible

dale_z28

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Re: DId a 69 Z use the capacitor on the coil?
« Reply #6 on: June 16, 2016, 03:59:02 PM »
Bill, I *think* (and that's a dangerous thing) the throttle return spring hooks into the hole where the capacitor bracket is mounted in your picture. BUT...I'm not certain which car my memory has revived. Coulda been a 350 (my El Camino) or a 396 (69 Impala)
'69 X33 02D   Since 11-29-'77

Details are trifles, but trifles make perfection. And perfection is no trifle.
~Ben Franklin

cook_dw

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Re: DId a 69 Z use the capacitor on the coil?
« Reply #7 on: June 16, 2016, 05:03:02 PM »
Bill was your car an AM radio car?

BillOhio

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Re: DId a 69 Z use the capacitor on the coil?
« Reply #8 on: June 16, 2016, 07:55:06 PM »
Yes. I looked at the AIM and it looks like some of the drawings were after my car and I don't have the wiring on the heater motor like they show. Maybe just FM radio stuff
1969 Z28, Burgandy, numbers matching, 12,900 miles
1968 RS 327 4 speed
1967 Plymouth GTX Hemi, 4 speed, dana
1961 Chrysler 300G convertible

69 Zee

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Re: DId a 69 Z use the capacitor on the coil?
« Reply #9 on: June 16, 2016, 09:56:10 PM »
Bill, I *think* (and that's a dangerous thing) the throttle return spring hooks into the hole where the capacitor bracket is mounted in your picture. BUT...I'm not certain which car my memory has revived. Coulda been a 350 (my El Camino) or a 396 (69 Impala)
The greenish throttle return spring attaches to the the rear plug wire stand on the Z.  There's a tab with a hole for it to hook into.

I thought that bracket looked familiar..lol.  I have a few other pics of original Z engines and they're also showing a capacitor attached to the coil bracket.

Hmmm...interesting to know though
Darrell
'69 Camaro Z/28: 03B NOR X77 Dusk Blue, white top, all orig, Under construction
'69 Firebird all original 350 all power w/ac
'70 Plymouth Superbird: One owner, Limelight green, 45K miles, all original U code

Stingr69

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Re: DId a 69 Z use the capacitor on the coil?
« Reply #10 on: June 23, 2016, 01:22:40 PM »
Helps the points last longer so why would it not get one?

paceme

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Re: DId a 69 Z use the capacitor on the coil?
« Reply #11 on: June 24, 2016, 06:35:43 PM »
I don't recall any mounted to the bracket. The cap used with the fan motors, came on cars equipped with am/fm and was for noise suppression.

Yes the capacitor attached to the points is for arc suppression to preserve the points.   
Steve Shauger
Vintage Certification™ Program, Providing Recognition And Status To Unrestored Vehicles.  The Supercar Registry-www.yenko.net-

BillOhio

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Re: DId a 69 Z use the capacitor on the coil?
« Reply #12 on: June 24, 2016, 08:45:20 PM »
Thanks guys. Mine shows no signs of having a screw in it.
1969 Z28, Burgandy, numbers matching, 12,900 miles
1968 RS 327 4 speed
1967 Plymouth GTX Hemi, 4 speed, dana
1961 Chrysler 300G convertible

69 Zee

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Re: DId a 69 Z use the capacitor on the coil?
« Reply #13 on: June 25, 2016, 03:12:06 PM »
So would it be safe to say that the capacitor may have been added to my coil bracket (pic that BillOhio posted #8) at some time?  and most likely for the purpose to preserve the points ?
Darrell
'69 Camaro Z/28: 03B NOR X77 Dusk Blue, white top, all orig, Under construction
'69 Firebird all original 350 all power w/ac
'70 Plymouth Superbird: One owner, Limelight green, 45K miles, all original U code

1968 Z28

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Re: DId a 69 Z use the capacitor on the coil?
« Reply #14 on: June 25, 2016, 08:38:55 PM »
So would it be safe to say that the capacitor may have been added to my coil bracket (pic that BillOhio posted #8) at some time?  and most likely for the purpose to preserve the points ?
The capacitor for the points is located on the plate under the distributor cap.  The one on the coil was for noise suppression on the radio. 
Jerry G.

Z28-1968-07C-Norwood
Ermine White, Red Std. Interior
2nd. Owner, 38,000 miles