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111362 Posts in 12823 Topics by 4913 Members
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1066  Camaro Research Group Discussion / Originality / Re: Rear Brake Standard Diameter on: February 11, 2014, 02:20:54 PM
The best I can do is provide you the Brake Specs from the '69 Service Manual:  (attached)..
1067  Camaro Research Group Discussion / Originality / Re: Rear Brake Standard Diameter on: February 11, 2014, 01:36:52 PM
Someone wanted that page more than the manual wanted to keep it?  Smiley   Those pages are easily torn out and lost.
Maybe someone who has the '68 manual can scan that page and provide it to you?
1068  Camaro Research Group Discussion / Originality / Re: Rear Brake Standard Diameter on: February 11, 2014, 01:03:33 PM
The 67 service manual also says your can rebore to .060 over, if you use .030 oversized shoes.  According to the Specifications Section 5 of the manual, the drums are 9 1/2 inch diameter.  The standard brake drum diameter for camaro models (9.5") is found in the service manual in the rear specification section 5, and is the same for Chevelle, Nova, and Camaro models.

Pete beat me to it, and what he says is correct.   You can turn the brake drums a maximum of 0.020 inches over the 9.5" std diameter and still use 'standard brake shoes.  If your drums need turning to more than 9.520, then you should turn it to 0.060" over *(ie.  9.560") and use shoes which are 0.030 'oversize' in order to maintain proper braking.   I'd suggest you make sure the 030 oversize shoes are available before following this path... Smiley

PS.  I have both '67 and '69 Chevy Service Manuals, they both read exactly the same, so I'm certain the '68 is identical.. Smiley
1069  Camaro Research Group Discussion / Originality / Re: Rear Brake Standard Diameter on: February 11, 2014, 11:21:30 AM
The last time I carried a brake drum to have it turned, the shop had a data base which told them a maximum for turning it, based on the year/type of car (but O'Reilly's data differed slightly from the information printed on my drum).  I have no idea if all '67/68/69 rear drums are the same size or not...  Does it matter if it's a 10 bolt or 12 bolt rear?   Does it matter if your front brakes are drums or disks?  I don't know the answer to those questions without research.   Have you checked the CRG data base to see if that is covered??
1070  Camaro Research Group Discussion / Originality / Re: Rear Brake Standard Diameter on: February 11, 2014, 09:46:35 AM
The Service Manual should have the correct information if you can't find it anywhere else.  I may have a '67 Service Manual; I'll check later today if no one else responds who has it more 'handy'..   Basically you want to know the maximum diameter to which the rear drum can be turned down.
1071  Camaro Research Group Discussion / Originality / Re: Rear Brake Standard Diameter on: February 11, 2014, 12:15:19 AM
I suspect you are referring to the wheel cylinder, rather than the drum?
per this link, the rear drum brake wheel cylinder diameter is stated to be 7/8"  (0.0875 ")..
http://www.partsgeek.com/catalog/1968/chevrolet/camaro/brake/drum_brake_wheel_cylinder_repair_kit.html
I don't have my service manual handy, so this was the best I could do. 

PS.   The drum itself will have a specification stamped into it; how much it can be turned down is generally stamped into the back edge of the drum.   
There is also a angle cut on the back inner edge of the brake surface, which can be used as a quick indication of how much it could be turned down...
1072  Camaro Research Group Discussion / Originality / Re: Identifying Original Console Gauges on: February 11, 2014, 12:04:51 AM
I had some Meguairs' plastic cleaner/polish, but it seemed to not do much; the toothpaste worked much better.. Maybe the polish was old?
1073  Camaro Research Group Discussion / General Discussion / Re: Rosewood Wheel on Ebay on: February 10, 2014, 06:32:09 PM
There could be more than one of them 'nos in the box'.. Smiley      and it always seems like HBC prices are 2X-3X greater than what you can buy the same thing somewhere else for??  Smiley
1074  Camaro Research Group Discussion / General Discussion / Re: Chrome Plating on: February 09, 2014, 01:22:14 PM
<< Do they plate using the copper-nickel-chrome process? So many shops leave out the copper step these days. >>

Leaving off the copper base was the original GM process - GM "factory chrome" was only nickel and chrome.

When chroming 'new metal', the copper step isn't as important, as the copper is the soft metal used to fill imperfections from pits, bad pot metal, etc, prior to the nickel and chrome steps.   Rechromers used to highlight their 'triple chrome' process (copper, nickel, and chrome) for rechroming 'used parts' for show cars.  Back in the '70's (and perhaps earlier in some states), the EPA got much tougher on such shops in terms of capturing their (heavy metals?)..  and many many shops had to either change their process or get out of the business and many closed.  The ones that continued the copper step had to change their previous, perhaps sloppy process, at a greater cost.

The question to ask your rechromer is how they fill pits, etc to get the metal smoooth prior to the nickel step.
1075  Camaro Research Group Discussion / General Discussion / Re: What is it ? on: February 09, 2014, 12:02:44 PM
It appears to be very similar....
1076  Camaro Research Group Discussion / Originality / Re: Identifying Original Console Gauges on: February 08, 2014, 11:13:41 PM
thanks guys!  I should have thought to try the toothpaste.. 
'Colgate works for cleaning/polishing aluminum parts also'..  Smiley
I will give it a shot on these lenses.. 
1077  Camaro Research Group Discussion / Originality / Re: Identifying Original Console Gauges on: February 08, 2014, 06:26:07 PM

I need to clean my gauges up and get it all back together for going in the car and I have a couple of questions:
1)  My clear plastic lens over the gauges are 'scratched' and dull;  Any recommendations for polishing or replacing them?
Gary -
If your lenses are originals, and you are the detailed restorer that I think you are, look at the part number embossed on your lenses - you should see a "-1" and a "-2" on the two lenses. GM actually used two different part numbers, combined to a single number years later before they went discontinued. Polish them and keep them with the package. If they are tool deeply scratched to look decent, then I guess the solution is to replace.
Thanks for the info, Steve.. I checked, and yes mine have the -1 and -2 pns.  The only plastic polish I have is like 'water'..  doesn't seem to be doing anything.   Can anyone recommend anything better?
PS.  and I took Darrell's advice to clean up the gauges today; they look much better.. hopefully they will all still work when I hook 'em up. Smiley
.. and definitely a brushed finish...
1078  Camaro Research Group Discussion / Originality / Re: Identifying Original Console Gauges on: February 08, 2014, 03:46:53 PM
That's his 'buy me now' price ($230..  OUCH)..   I think I might offer him a little dirt pile instead of a gold mine..  Smiley
Well, he rejected my offer of a dirt pile as taken from a gold mine...  Smiley
If I can't polish my originals to look better, then CHQ has a reproduction..  Has anyone used these who can 'review' them?

http://www.ebay.com/itm/1968-1969-Camaro-Console-Gauge-Lens-CHQ-New-/390761466098?pt=Motors_Car_Truck_Parts_Accessories&hash=item5afb32c8f2&vxp=mtr
1079  Camaro Research Group Discussion / Originality / Re: 69 AM antenna on: February 08, 2014, 02:26:46 PM
After waiting a couple of days for the 'other Gary' to buy that antenna, and he didn't..  I obtained it to check my 'guess' and show some of you wrong..  Smiley   The mast and tip appeared elliptical to me in the photos, and the owner confirmed it (as I had previously posted).  Upon checking and comparing to my original '69 antenna mast, it is identical.  Most of the other parts associated with the mounting are also identical, although I suspect the antenna cable is longer for the Impala/Caprice; my camera antenna cable is still installed and isn't easy to check length.

1080  Camaro Research Group Discussion / Originality / Re: Identifying Original Console Gauges on: February 08, 2014, 02:20:00 PM
I took another look at my console gauges today, and they definitely have a brushed finish (when the light hits the face).  I suppose the angle of the photo and lighting when I took the earlier photo made it look 'flat or unbrushed'.  

I need to clean my gauges up and get it all back together for going in the car and I have a couple of questions:
1)  My clear plastic lens over the gauges are 'scratched' and dull;  Any recommendations for polishing or replacing them?
2)  I also need replacement lamps for the gauges;  Recommendations for a source for these lampbulbs would be appreciated. 
     (I have the G-E 1445 lamps that I removed when I disassembled the console; they appear good.  I assume
       these are the original lamps?  true? or ??)  Are they available thru local parts store?

Thanks,
Gary
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