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102367 Posts in 12080 Topics by 4664 Members
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2266  Camaro Research Group Discussion / Originality / Re: carb heat shields on: March 27, 2006, 05:17:38 PM
Not from the factory, but they could be purchased over the counter. I bought one in the early 70's for a 57 Chevy I was building. It was cool looking then. Not really sure how much it helped.

I've also been told they were standard on the ZL1's, but that's only hearsay.

Anyone else??? JohnZ???

Ed


2267  Camaro Research Group Discussion / Originality / Re: '68 396 fan clutch, ...correct PN(s)?? photos? on: March 27, 2006, 05:11:44 PM
Kevin,

Not sure I'm going to be able to help you here since I'm not sure if my clutch is original! But here's what I have...

In group 1.050 of the P&A, it shows the following:

1966-1967 Chevelle (396), 1967 Camaro (6 Cyl), 1968 Camaro (396) - Drive unit - P/N 986067 Unfortunatly, this is for the clutch and the fan assembly and doesn't have a breakdown of the P/N's by themselves. And of course, this could be a generic replacement assembly.

Both my Hollander and Mitchell interchanges (1969 editions) show the 1968 Camaro 396 as P/N 3927103. It also shows the 1967-1968 Camaro 302, the 1967-1968 Chevelle 396 (375), the 1966-1967 Full Size (427/425) and the 1968 Full Size (427) as using the same clutch. (Mitchell interchange #551 and Hollader interchange #175)

As you said, the AIM shows P/N 3916388, but it also shows P/N 3927103 as bing "Optional". There's also a note (note 4) stating that the 3927103 "WAS 3916589" with the change being noted on November 1st, 1967.

Now, to confuse things even more, here are 2 pictures of my old fan clutch. There's wording stamped into both sides of the clutch with "OD" stamped in black ink on the front side (see the pictures...) I have no idea if it's original so take this with a grain of salt!

1968 Camaro 396/375 (L89) Fan Clutch front

1968 Camaro 396/375 (L89) Fan Clutch rear






I hope this helped, but I know it didn't!!!

Ed
2268  Camaro Research Group Discussion / Maintenance / Re: Voltage regulator not working properly? on: March 27, 2006, 02:20:50 PM
Don,

Okay, I found the part number you want to get. It's a WELLS P/N VR715 and you can get it from AUTOZONE for 14.99 plus tax.

Ed
2269  Camaro Research Group Discussion / Restoration / Re: Multi leaf springs on: March 27, 2006, 10:42:47 AM
It could be either, depending on what options you have on your car. In UPC 0 of the AIM, there's a spring chart (Page A9 of the 68 AIM). If you go in there and find out what spring you need (based on the options on your car), post it here and I might be able to look it up for you.

Ed
2270  Camaro Research Group Discussion / Restoration / Re: 1967 Front bumper guard layout on: March 27, 2006, 10:37:54 AM
I don't believe there was an actual "standard" since I've seen too many original cars with varying locations of front bumper guards! (Minor, but different... Usually no more than an inch or two off.)

Since the line workers had to drill the holes manually, they probably just eyeballed it. But, to answer your question on location, my car (a 68 RS/SS) has it's front bumper bolts mounted 10" from the centerline of the car outward. In other words, measure 10" out from the centerline of the front valence and drill the hole.

I also believe 67's are the same as 68's, but if I'm wrong, someone will correct me...

Ed
2271  Camaro Research Group Discussion / Maintenance / Re: Original 10 bolt oil type on: March 27, 2006, 10:29:08 AM
Dan,

90wt Hypoid Gear Oil is the original lube for the rear end and the manual transmissions. If you have Posi, you also need to add the posi lube.

There's a plug on the side that you fill it from, and when it starts leaking out, it's full. As for exact quantity, I "believe" it's a few quarts, but I'm not close to my service manual right now to verify that. I'm sure someone else can...

Ed
2272  Camaro Research Group Discussion / Maintenance / Re: Voltage regulator not working properly? on: March 27, 2006, 10:26:36 AM
Don,

I got one from Auto Zone for 12 bucks. Works like a charm so far (2 years). You can tell the difference between the solid state regulators because they're not as tall as the coil ones. Mine's about 2" tall.

Voltage should never get above 14.7 volts according to the Service Manual. Typically, you should see anywhere from 13.5 to 14.5 volts at the high RPM's. If you get above 15 volts, you start boiling the water out of the battery and believe me, over time it makes a real mess and causes lots of rust problems!! (Don't ask...)

 Shocked

Ed
2273  Camaro Research Group Discussion / Decoding/Numbers / Re: Tinted glass date codes-how early? on: March 26, 2006, 12:16:30 AM
I'm not sure about all cars, but the glass in my 05D 68 has both doors dated August, 1967, and both rear quarters dated January, 1968! The Windshield is no longer original so that's of no help, and the convertible top is missing the plastic window. The car has A01 (Soft-Ray tinted glass - all windows) and is a fairly late build.

Ed
2274  Camaro Research Group Discussion / Decoding/Numbers / Re: Correct intake for L30 on: March 26, 2006, 12:11:14 AM
What's the casting date and assembly date of your block? that will get you in the ballpark. Just remember that the intake should be around the same time as the block "casting" date, but before the engine "assembly" date.

Ed
2275  Camaro Research Group Discussion / Decoding/Numbers / Re: Correct intake for L30 on: March 25, 2006, 05:27:37 PM
Yes, the P/N 3931575 intake has a casting number of 3919803, and was used in 68 for all small block Rochester 4bbl cars.

Ed
2276  Camaro Research Group Discussion / Originality / Re: '68 396: Smog Diverter Valve "Broadcast code" question ?? on: March 25, 2006, 05:21:45 PM
Steve,

So... If I read this right:

The original valve for the 1968 396 was 7024764.

This was superceded in May of 1968 by 7028299.

This in turn was superceeded sometime before September, 1968 by 7036448.

Jeez... no wonder it's hard to restore these things!!

 Roll Eyes

Ed
2277  Camaro Research Group Discussion / Originality / Re: '68 396: Smog Diverter Valve "Broadcast code" question ?? on: March 25, 2006, 04:41:57 PM
Steve,

What was the application for the 7028299? I can't find that one in the P&A either.

Ed
2278  Camaro Research Group Discussion / Originality / Re: '68 396: Smog Diverter Valve "Broadcast code" question ?? on: March 25, 2006, 03:26:29 PM
Steve's correct. The 7024764 is shown in the AIM under the L35 engine option (page A7). The 7036448 came from my September, 1968 P&A 34, and may be the "replacement" because it states "68 ALL (396)".

Ed
2279  Camaro Research Group Discussion / Restoration / Re: Source for repo 68 Yenko "Y" center caps??? on: March 24, 2006, 07:40:08 PM
Try posting your question at the SUPERCAR REGISTRY site. There's a lot of guys there that actually have Yenkos!

Ed
2280  Camaro Research Group Discussion / Restoration / Re: Heater Box Sealing on: March 24, 2006, 07:38:24 PM
According to the AIM, there was a bead of sealer (.38" diameter) run across the length of the A/C housing where it attaches to the firewall. The original stuff is unknown to me (P/N 9985059), but I'm sure 3M would work just fine.

For more info, check out the C60 option, page D1 in the 68 Assembly Instruction Manual (AIM).

Ed
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