Early 70's Ignition Capacitor?
Thread Starter
Melting Slicks
Joined: Sep 2000
Posts: 2,404
Likes: 418
From: Chester Virginia
Early 70's Ignition Capacitor?
In working to eliminate my radio noise I have found a capacitor connected to the positive side of the ignition coil and it is attached to the coil bracket. The AIM, NCRS judging books and other Corvette books I have do not show or mention this capacitor. Does anyones' early 70's have this capacitor? There is a capacity inside the distributor connected to the points and a capacitor on the HVAC blower motor.
Roger
Roger
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,851
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Roger,
There should be a capacitor mounted to the bottom of the coil mounting bracket as shown in UPC U69 Sheet A4 of the assembly manual.
Below is a copy of this page.
Willcox Inc.
There should be a capacitor mounted to the bottom of the coil mounting bracket as shown in UPC U69 Sheet A4 of the assembly manual.
Below is a copy of this page.
Willcox Inc.
Last edited by Willcox Corvette; Dec 24, 2008 at 09:58 PM.
Thread Starter
Melting Slicks
Joined: Sep 2000
Posts: 2,404
Likes: 418
From: Chester Virginia
I found it in the 73 AIM. It is in section B01-B12 sheet 32. The sheet is labeled Capacitors. Other capacitors are shown on sheet 31. The p/n listed is 1852715.
How do you check a capacitor to see if it working?
Roger
How do you check a capacitor to see if it working?
Roger
Drifting
Joined: Jul 2008
Posts: 1,873
Likes: 27
From: Sonora CA
Ok, let's say you actually want to replace the cap, for whatever reason. You go to the local auto parts store, the guy gives you a "one fits all" How do you actually know if it's the right one? We can tell by the numbers on ligit bulbs, sparkplugs, etc. Is there any designation on a cap that you if it's the right or wrong one?
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Brett Foote
Team Owner
Joined: Sep 2006
Posts: 31,237
Likes: 4,330
From: Westminster Maryland
Hi Roger,
I was curious as to how to test also.
What I found was that you mount the capacitor on a Digi-Bridge LCR Meter and test for storage capacity and leakage profile.
I have no idea what that means!!!
Merry Christmas!
Regards,
Alan
PS: Some electrical savvy person step in please....
I was curious as to how to test also.
What I found was that you mount the capacitor on a Digi-Bridge LCR Meter and test for storage capacity and leakage profile.
I have no idea what that means!!!
Merry Christmas!
Regards,
Alan
PS: Some electrical savvy person step in please....
Thread Starter
Melting Slicks
Joined: Sep 2000
Posts: 2,404
Likes: 418
From: Chester Virginia
A poster at the NCRS board mentioned using a digibridge RCF meter, whatever it is. I'll check at work next week to see if the electricians have one. Also, there are several capacitors and I want to find out the ratings.
Roger
Roger
Racer
Joined: Dec 2003
Posts: 275
Likes: 6
From: NY
Hi Roger,
I was curious as to how to test also.
What I found was that you mount the capacitor on a Digi-Bridge LCR Meter and test for storage capacity and leakage profile.
I have no idea what that means!!!
Merry Christmas!
Regards,
Alan
PS: Some electrical savvy person step in please....
I was curious as to how to test also.
What I found was that you mount the capacitor on a Digi-Bridge LCR Meter and test for storage capacity and leakage profile.
I have no idea what that means!!!
Merry Christmas!
Regards,
Alan
PS: Some electrical savvy person step in please....
