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1021  Camaro Research Group Discussion / Decoding/Numbers / Re: Rear axal code date on: February 27, 2012, 08:39:45 PM
My 68 z is 07b  rear code BV0316G1 E  engine is V0628mo on pad. CAST E228. It looks like rear diffs. were stretched out more

Looking at your rear code of being a 4:10, that is certainly a less common ratio option to order, IMO, even back in '68. Your date spread is no worst than Joe's (X66 714) cars that too have steep ratios. I would venture to say yours (and Joe's) are within a very acceptable range.
 As for engine dates vs. cowl dates, I find it interesting how the small block Z's are so close compared to my BB dates (and other BB dates I have seen in the past). I guess it is partially dependent on when the model options 'catches on' to the buying public.

Interesting thread!

Mike

1022  Camaro Research Group Discussion / Decoding/Numbers / Re: Rear axal code date on: February 27, 2012, 06:59:41 PM
My 68 z is 07b  rear code BV031G1 E  engine is V0628mo on pad. CAST E228. It looks like rear different were espresso out more.
The date code should be four numbers. Did you leave one out?

Mike
1023  Camaro Research Group Discussion / Maintenance / Re: Bright high beams, Dull low beams on Hal. lights on: February 27, 2012, 03:56:01 PM
 I had this exact problem when reinstalling my RS harness back in the 80's after replacing the front sheet metal from damage. It turned out to be a ground wire problem in the front but I don't remember exactly where.

Mike
1024  Camaro Research Group Discussion / General Discussion / Re: 1969 Big Block Runs Hot Camaro on: February 27, 2012, 03:29:16 PM
 Looking at a used water pump (the culprit) in my shed reminded me of the exact problem that I wanted to share with you as a possible fix.
I put a rebuilt aftermarket water pump on my 396 when the motor was rebuilt and had high temp problems afterwards mainly at idle but it did run above average when driving as determined by the normal spot on the gauge. To make a long story of trying this and that short, I had the GM original pump rebuilt and reinstalled and that fixed the problem. Out of curiosity I removed the backing plate on the aftermarket pump and easily spotted the pump impeller to be much smaller in profile when it normally takes up most of the cavity.

Mike
1025  Camaro Research Group Discussion / Decoding/Numbers / Re: Rear axal code date on: February 27, 2012, 01:18:55 PM
 Here are my 2 67 rear dates (plus engines):

NOR 5B - 396/MT/3:31 posi - date - 0331 - This is the performance rear option. Lag about 6 weeks. (engine date 0308)
LOS 4B - 396/AT/3:07 non-posi - date - 0404 - This is the standard rear for this base engine option. Lag about 9 days. (engine date 0214 - assembled with love  Smiley )

  I think the gear ratio installed may have an effect on the assembly date of the rear vs. the car.
The standard ratios  should have less of a date lag because they would be used on all cars that didn't have the optional rear ordered, as is the case of my LOS car.

Mike
1026  Camaro Research Group Discussion / General Discussion / Re: 1969 Big Block Runs Hot Camaro on: February 26, 2012, 10:47:49 PM
Just a thought but did you change the head gaskets by chance? And if so did you get the correct type (series vs. parallel flow)? BB's should be using the series flow gasket sets whereby water enters the front of the block, flows past the cylinders to the rear then up through the heads towards the front and out the front cross over in the intake and out the thermostat housing. Gaskets for parallel flow on blocks made for series can cause over temp conditions.

Mike
1027  Camaro Research Group Discussion / Originality / Re: Original 1969 SS 396 325HP AUTO no air cond on: February 26, 2012, 09:28:44 PM
 Wasn't there a recall due to the issues caused by the intake manifold hot slots either causing fires and/or carb plates to warp? Could this have been a replacement if the dealer deemed the carb should be replaced?

Just a thought.

Mike
1028  Camaro Research Group Discussion / Decoding/Numbers / Re: 67 tire pressure decal on: February 26, 2012, 09:10:29 PM
This is the original sticker in my 67 LOS 4B SS/RS/L35 hardtop.
As for RS vs. SS differences, the RS didn't come with a 396, but an SS 396 can be ordered with the RS package.
Hope this helps.

Mike
1029  Camaro Research Group Discussion / Decoding/Numbers / Re: 67 tire pressure decal on: February 26, 2012, 08:13:19 PM
Yes.....'R' and the P/N is 3917576
 The pressure is 28/34

Mike
1030  Camaro Research Group Discussion / General Discussion / Re: Temperature sending unit and proper gauge readings. What is correct? on: February 26, 2012, 06:39:09 PM
 My 67 reads about mid scale when at normal operating temperature.

Mike
1031  Camaro Research Group Discussion / General Discussion / Re: Why do 68 z28s bring less than 69s even though 68s are much more rare? on: February 26, 2012, 03:44:20 PM
 I have always owned '67's but I admit the '69 body styles look so damn good. Grin
The 69 body style looks fast even when standing still. I wish the new Camaro's retained the vintage look like the '69's
sort of like the new 'Stangs and Challenger looks that retained their vintage shapes.


Mike
1032  Camaro Research Group Discussion / Restoration / Re: 1969 Hood Hinge Color on: February 25, 2012, 02:31:59 PM
 If you don't feel like treating your own metal parts, I would recommend http://www.brakeboosters.com/services.htm
as an alternative.

Mike
1033  Camaro Research Group Discussion / General Discussion / Re: single point distributor cap on: February 25, 2012, 11:55:25 AM
I overlooked the gear meshing fact. Now that makes the whole process clearer.

Thank you,
Mike
1034  Camaro Research Group Discussion / General Discussion / Re: single point distributor cap on: February 24, 2012, 11:03:20 PM
Quote
At 170 per hour on Line #1 and 130 per hour on Line #2, I expect that they just set the engine at #1 TDC on the compression stroke, stabbed the distributor in the position in the photo above, and "bumped" the engine with an air-powered starter tool until the distributor dropped.

Hi John,

   Bumping the engine to align the oil key would change the relative piston/valve timing position to the cap, no?
I have a feeling that there must have been a timing jig to set the initial oil gear position before dropping in the distributor to facilitate engine assembly.
  I found this article that describes a neat method to "walk" the distributor into position. I used the screw driver method but I'm going to give this method a try tomorrow.
Being a Corvette judge I'm sure you are aware of it.
http://www.corvette-restoration.com/resources/technical_papers/Distributor_Installation.pdf

This one has links to You Tube examples
http://www.classiccarauto.com/impala/how_to/install_distributor.shtml

  I wonder if they used something like this if there wasn't a tool otherwise.

Mike
1035  Camaro Research Group Discussion / General Discussion / Re: single point distributor cap on: February 24, 2012, 12:52:04 AM
 Did the engine factory use a jig to pre-position the oil pump shaft in relation to the dist drive gear on the cam so when the distributor was installed it was positioned at the correct distributor cap post?
I can't see them fiddling with locating the correct position otherwise.

Mike
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