Author Topic: Points Distributor Cap  (Read 6536 times)

ZLP955

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Points Distributor Cap
« on: January 17, 2017, 12:32:31 PM »
Trying to determine if the distributor cap with my 1111480 is the correct type; it has 'Delco-Remy Patent Pending R' on the top, and is black with silver (aluminum?) contacts. I believe this makes it a 308R cap, since I'm reliably informed the 309 caps are brown with copper contacts.

My understanding is that cap markings changed as follows:
Late '50's until 1969 model year: marked 'Delco-Remy Patent Pending' (no 'R')
1969 model year until ?: marked 'Delco-Remy Patent Pending R'
? onwards: marked 'Delco-Remy Patent 2769047 R'

So my questions are, when did the patent number started showing up on the distributor caps, and is it correct that a 308 cap is black and a 309 cap brown?
Thanks for any help.
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

ZLP955

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Re: Points Distributor Cap
« Reply #1 on: January 31, 2017, 10:48:18 PM »
Anyone? Maybe there is some guidance to this in the Corvette world.....
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

68camaroz28

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Re: Points Distributor Cap
« Reply #2 on: January 31, 2017, 11:50:35 PM »
Anyone? Maybe there is some guidance to this in the Corvette world.....
The cap I used on our 68Z restoration was a "patent pending" no R as that is what I found to be correct and yes Tim the NCRS gang are normally up to date on what is correct. I will do some checking with a NCRS judge friend and check my 67 & 68 NCRS judging manuals.
Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584

ZLP955

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Re: Points Distributor Cap
« Reply #3 on: February 01, 2017, 04:22:15 AM »
Thanks Chick!
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

68camaroz28

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Re: Points Distributor Cap
« Reply #4 on: February 01, 2017, 01:41:53 PM »
Tim, my 68/69 NCRS judging manual edition #4 states the following on caps:


And the 67 NCRS judging manual 4th edition states:
Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584

ZLP955

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Re: Points Distributor Cap
« Reply #5 on: February 01, 2017, 02:41:59 PM »
Chick, thank you once again - excellent sleuthing, and much appreciated. I'll clean up and reuse my existing cap then.
Had no idea that the 'R' cap is apparently correct for 68 (apart from very early cars as noted above) as well as 69 model years....
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

jeff68

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Re: Points Distributor Cap
« Reply #6 on: February 01, 2017, 04:28:15 PM »
Tim - I know you didn't ask about the rotor, and I have no idea if you already know this, but...
it's a good idea to use a rotor without the "E" stamp on the electrode, as the electrode is slightly longer.
68 L30/M20 Convertible, Ash Gold
N10, F41, N34, Z21, ZJ9, Z87, D55, G80, P01, U17

ZLP955

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Re: Points Distributor Cap
« Reply #7 on: February 01, 2017, 08:26:17 PM »
Wasn't aware of that, so thanks for the tip Jeff!
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

jeff68

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Re: Points Distributor Cap
« Reply #8 on: February 02, 2017, 12:50:24 PM »
You're welcome.
If shopping for a NOS D-409 rotor, here is what I have found:  If the box has "ROTOR X" printed on it, then it is the older long electrode type.  If the box has "ROTOR 2X" on it, it is the later E-stamped type.
68 L30/M20 Convertible, Ash Gold
N10, F41, N34, Z21, ZJ9, Z87, D55, G80, P01, U17