CRG Discussion Forum
Welcome, Guest. Please login or register.
Did you miss your activation email?
March 31, 2015, 03:28:05 AM

Login with username, password and session length
Search:     Advanced search
Welcome to the CRG Discussion Forum!
Forum registration problems: Make sure you enter your email correctly and you check your spam box first. *Then* email KurtS2@gmail for help.
111432 Posts in 12830 Topics by 4913 Members
Latest Member: devodave
* Home Help Search Login Register
  Show Posts
Pages: 1 [2] 3 4 ... 282
16  Camaro Research Group Discussion / Decoding/Numbers / Re: 5460346 Master Cylinder on: February 23, 2015, 01:01:14 PM
Then John if one location for all, what's your thoughts on the stamping process. Different fonts or way each was stamped. And was the pad on all masters machined or have you seen any stamped on pad that had not been machined?

The 346 master cylinder was also used on some C3 Corvettes, and I've never seen one that didn't have the front pad machined for the ID stamp. Delco-Moraine probably used the same gang-holder stamping process as was used on engines and transmissions, which would lead possibly to different fonts on different days.
17  Camaro Research Group Discussion / Originality / Re: Crayon Mark on Inner Heater Box on: February 21, 2015, 11:53:19 AM
Those are all broadcast sequence numbers.  Smiley
18  Camaro Research Group Discussion / Decoding/Numbers / Re: 5460346 Master Cylinder on: February 21, 2015, 11:45:52 AM
I'm assuming the master cylinders were supplied for Norwood or LA from the same source?

Yup - Delco-Moraine Div., Dayton, Ohio was the source for all GM iron master cylinders in those days (except for a few supplied by Bendix).
19  Camaro Research Group Discussion / Originality / Re: GM silver for Rally wheels. on: February 09, 2015, 11:51:05 AM
did a little research and The NORWOOD built 69 Trans Ams survivors which have been unearthed have grey backed Ralley II's.

Pontiac used a different wheel supplier.
20  Camaro Research Group Discussion / General Discussion / Re: Classic Car Motor Oil on: February 07, 2015, 02:42:16 PM
John Z stated they have not lowered it.

Back when Rotella (and the other diesel oils) carried the old CI-4 service rating, they tested around 1300ppm zinc/phos. When CI-4 was superseded by the new CJ-4 formulation and  rating about ten years ago, the zinc/phos. content was reduced to 1200ppm. Conventional passenger car/light truck "SM" oils are limited to 800ppm zinc/phos., to protect catalytic converters.
21  Camaro Research Group Discussion / General Discussion / Re: 67 Camaro Pilot Line Assembly Process and Procedures on: February 07, 2015, 02:33:37 PM
OK...I have to ask what may sound like a stupid question about the clay mockups.
I assume there was some sort of platform base under all that clay and not that the mockup was solid clay?


Yes, there was - clays were built on what was called an "armature", which was a simple steel frame with adjustable wheelbase and track; on this frame, a segmented plywood model was built, with the edges of each "slice" cut about 2" smaller than the exterior dimensions of the proposed vehicle. That last 2" was covered with clay, and then the clay modelers went to work creating the full-size clay model from the full-size drawings on the walls. A typical armature weighed about 6,000 pounds.
22  Camaro Research Group Discussion / Mild Modifications / Re: Stinger Hood for my 68 in Australia on: February 03, 2015, 12:25:26 PM

Also, has anyone cut out the opening at the front rather than rely on the cool air induction from the back of the hood? Those ducts are screaming "cut me free!" I reckon.

There is zero "ram air" effect below 100mph from a front-opening scoop, as it's in the boundary layer of airflow; that's why the Harwood front-opening scoops on Pro Stock cars are elevated 12" above the hood surface, to get them clear of the nearly-static boundary layer.
23  Camaro Research Group Discussion / Restoration / Re: 67 Manual Disc Master Cylinder Rebuild on: February 03, 2015, 12:18:21 PM
White Post did my '69 Z/28 master (309-US) in 2000 for $158.00 (sleeve and rebuild), and did the same to my '67 Corvette master (5455509-DC) in 2002 for $162.00; turnaround in both cases was 3 days.  Smiley
24  Camaro Research Group Discussion / General Discussion / Re: Cosworth Vega on: February 02, 2015, 11:44:15 AM
<< Are the yellow plug wires standard or aftermarket? >>

Aftermarket. OEM wires were black or silver, depending on when the car was built.
25  Camaro Research Group Discussion / General Discussion / Re: Horn Button Repair, R & R Tricks on: February 01, 2015, 12:29:24 PM
A steering wheel puller is less than ten bucks at your local auto parts store.   Smiley
26  Camaro Research Group Discussion / General Discussion / Re: Classic Car Motor Oil on: February 01, 2015, 12:21:01 PM
The ZDDP has been reduced in Rotella also. The zinc and phosphorus shortens the life of catalytic converters so the EPA is doing its job.

No, it hasn't. The CJ-4 API service rating on Rotella (and every other CJ-4-rated brand) will routinely test at 1100-1200 ppm of zinc/phos, which is more than adequate protection for any OEM valvetrain; if you have an aftermarket valvetrain with Gonzo valve springs and radical lobe flank accelerations, all bets are off and you'll need more specialized lubricants with more EP (Extreme Pressure) additives.

CJ-4 oils are not intended for use with catalytic converters - that's why "SM" (the current EPA-approved passenger car and light truck oil classification for spark-ignition engines) is listed SECOND on the API label logo.
27  Camaro Research Group Discussion / General Discussion / Re: Cosworth Vega on: February 01, 2015, 12:02:51 PM
<< Thought I'd post THIS for JohnZ, rsr, and others.
Just listed... no price yet, not much detail...
Anyway Vega lovers enjoy! >>

That's an interesting car - beautifully restored, with a subtle addition of aftermarket A/C (note Sanden compressor); A/C was never available on the Cosworth-Vega. It will probably be priced well beyond reality, as the Cosworths appeal to a pretty narrow niche market.  Undecided
28  Camaro Research Group Discussion / General Discussion / Re: Rick & His Yenko at Americarna LIVE Car Show on: February 01, 2015, 11:45:23 AM
<< John,
Can you post your other article, Vega Development and Production History, 1968-1975?

Thanks! >>

Sure - got lots of this stuff.  Smiley
29  Camaro Research Group Discussion / Originality / Re: 140 much vacuum ? on: January 23, 2015, 12:31:13 PM
The stock Z/28 cam (-346) will pull about 9"-10" Hg. at 900-1000 rpm; I'd expect the "140" off-road second design cam to pull about 2" less.
30  Camaro Research Group Discussion / Decoding/Numbers / Re: 5460346 Master Cylinder on: January 23, 2015, 12:25:38 PM
John was there any connection to D 1,2,3,4 in time frames from Ohio? Just curious about the number. Most want to tie it to date codes in some way.

Nope. It's not a date code - it's foundry pattern number identification.
Pages: 1 [2] 3 4 ... 282
Powered by MySQL Powered by PHP Powered by SMF 1.1.20 | SMF © 2013, Simple Machines Valid XHTML 1.0! Valid CSS!
Page created in 0.382 seconds with 18 queries.