Can somebody tell me if the capacitor that hooks to the brake switch is the same part number as the one that hooks to the ammeter behind the dash cluster? I 'm trying to purchase a new one, but having a hard time locating one.
67 capacitor/radio suppressor help
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Re: 67 capacitor/radio suppressor help
Here's what it should look like, Mark. This is the original off my late '65.Attached Files- Top
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Re: 67 capacitor/radio suppressor help
For part number reference, crack open your copy of the AIM (Assembly Instruction Manual) and flip to the back where options are called out. The U69 (radio) option will have a drawing in it showing each of the 'hush up' capacitors that were installed as part of the radio option...- Top
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Re: 67 capacitor/radio suppressor help
Yes -- you'll notice that one of the capacitor wires is about 2" longer than the other; and that the capacitor will only mount with the screw above (ie. you can't install the cap. above the screw. So the terminals of both cap. leads are even with the two terminals of the stop light switch. You slide the U-shaped flat brass terminals of the cap. over the st.lt. male terminals before pushing on the black plastic female stop light connectors, (maybe one orange wire; one white) or black with those color stripes for '65 and earlier.
The drawings in the AIM or even the '65 Corvette shop manual are not really correct (they show the capacitor with plastic female terminals).
Don't believe it matters what color wire goes to what terminal on the stop light switch (the orange is the 12 volt feed; the white goes to the lights at back of the car).- Top
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Re: 67 capacitor/radio suppressor help
Yes -- you'll notice that one of the capacitor wires is about 2" longer than the other; and that the capacitor will only mount with the screw above (ie. you can't install the cap. above the screw. So the terminals of both cap. leads are even with the two terminals of the stop light switch. You slide the U-shaped flat brass terminals of the cap. over the st.lt. male terminals before pushing on the black plastic female stop light connectors, (maybe one orange wire; one white) or black with those color stripes for '65 and earlier.
The drawings in the AIM or even the '65 Corvette shop manual are not really correct (they show the capacitor with plastic female terminals).
Huh?
Don't believe it matters what color wire goes to what terminal on the stop light switch (the orange is the 12 volt feed; the white goes to the lights at back of the car).
Yep, the capacitor is NOT a polarized device. So, it doesn't care about +/- convention of the installation.
But, I don't get what's wrong with what's shown in the '67 AIM book. The cap terminates with two L-shaped foil tabs. They sit adjacent to the brake switch slide terminals. The harness connector 'swallows' both the capacitor's leads and the switch terminals.
Maybe I'm dumb, but the picture/drawing looks pretty clear and straightforward to me.Last edited by Jack H.; April 4, 2010, 09:45 AM.- Top
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Re: 67 capacitor/radio suppressor help
.... But, I don't get what's wrong with what's shown in the '67 AIM book. The cap terminates with two L-shaped foil tabs. They sit adjacent to the brake switch slide terminals. The harness connector 'swallows' both the capacitor's leads and the switch terminals.
Maybe I'm dumb, but the picture/drawing looks pretty clear and straightforward to me.]. I notice there are revision circles # 1, 2 and 4 beside the screw (item 3) in your picture. Does one of those revisions perhaps pertain to a re-drawn view in the time period between 1965 and 1967 ?
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Re: 67 capacitor/radio suppressor help
Whew! I thought I was going NUTZ as I'd said to look at the AIM more than once and the thread kept telescoping...
Yep, youse bez right, Wayne. There IS a difference in pictorial quality between '65 and '67 AIM books! My copy of the '65 is SO fuzzy (copy of copy of copy) that it's almost illegible.
The circle-1, circle-2, and circle-4 notes INDEED have revision record relevance! They ALL read "Capacitor Dwg Revised" and it's not clear as to WHICH of the capacitors depicted on this sheet they refer to.
The first is dated either 8/3/66 or 9/3/66 (that's blurry), the second is dated 9/7/66 and the fourth was effective 11/23/66. So, the various pictorial changes happened over a spread of time...- Top
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Re: 67 capacitor/radio suppressor help
Yep, .... There IS a difference in pictorial quality between '65 and '67 AIM books! My copy of the '65 is SO fuzzy (copy of copy of copy) that it's almost illegible.
The circle-1, circle-2, and circle-4 notes INDEED have revision record relevance! They ALL read "Capacitor Dwg Revised" and it's not clear as to WHICH of the capacitors depicted on this sheet they refer to. ...
This dwg. implies that the plastic connectors are on the capacitor assembly; there is no sign of the 12V orange feed or white output wires. also, it's implied that the capacitor is OUTSIDE of the brace channel, rather than on the inside, next to the steering column tube.
No wonder they needed a few revisions to get it right.
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Re: 67 capacitor/radio suppressor help
There's a pretty good reason for why the drawing confuses you, Wayne! You're reading the '65 Corvette Corvette Service Manual Supplement and NOT the '65 AIM...
The initial release of the Shop Manual was for the Sting Ray's debut in '63. Then, in '64 and '65, they released Supplement books intended to give dealership mechanics the 'gist' or 'big picture' of things new/unique to that model year.
BEWARE! There's a LOT of liberty taken in that approach and may be one of the reasons Corvette because integrated with the Chevy passenger car service literature (Chassis Service Manual) beginning in 1966...
To speak to your comment/critique specifically, go back and take a second look-see at the pictorial you reference and NOT just the one close-up of the brake switch radio capacitor.
See the TS flasher being installed in the plastic fuse panel and NOT onto extention wiring clip on the side of the center console? Note, that picture shows NO fiche paper insulator covering the capacitor's lead wires...
Next, take a gander at the heater blower motor capacitor being installed. See how it uses 'bananna plug' style connectors and the blower motor itself has bananna style power terminal mounted on the SIDE of the motor can instead of a post/slide-terminal connection for power feed on the blower motor's mounting plate?
Daahhhh, it's OBVIOUS this pictorial is specific to an early 1963 Corvette since it's PEPPERED with those aspects of the '63 that were 1-year only and eliminated by design improvements via running changes that happened as a result of the learning curve after the 1963 car's production debut!
That's why I kept saying refer to the AIM...- Top
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Re: 67 capacitor/radio suppressor help
....Wayne! You're reading the '65 Corvette Corvette Service Manual Supplement and NOT the '65 AIM...
...... it's OBVIOUS this pictorial is specific to an early 1963 Corvette since it's PEPPERED with those aspects of the '63 that were 1-year only and eliminated by design improvements via running changes that happened as a result of the learning curve after the 1963 car's production debut!
That's why I kept saying refer to the AIM.... This thread started with a question by Mark strictly related to the capacitor for the BRAKE switch. I attach below a thumbnail of my '65 AIM (poor copy -- dating around 1976 TMCS
) I suggest you open up both this pic and my thumbnail from post # 12, from the '65 Shop Manual. Place them side-by-side at same magnification. Now, here's what I see: the '65 AIM is a sloppier sketch of the '65 Shop Manual dwg, but is essentially the same. One difference in the AIM is the comment about the white (switch output power) wire, but I challenge you to find it. Now upon examining the Shop Manual with my trusty magnifying glass, I can now make out what appears to be two (thin) power wires coming down toward the switch from the upper right, so it's possible that they intend that the black connectors belong to the power wires (as is in fact) and not to the capacitor wires (as it appears in the SM).
It's beyond me how the assembly line workers were to correctly interpret that AIM dwg. In this case the detail in the shop manual trumps (at least my copy of) the AIM. In the thumbnail you posted of a '67 AIM, they seem to have cleaned up the dwg. even moreso.Attached Files- Top
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