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97547 Posts in 11720 Topics by 4581 Members
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1  Camaro Research Group Discussion / Decoding/Numbers / Re: 1968 Z/28 Block - Trans - Rear Numbers... Original Stamps? on: April 19, 2014, 01:34:23 PM
I was just comparing the appearance and angle of the broaching marks that I have on my 302 block in addition to pictures that I have kept of other known good stampings, and all I can say is they don't appear to be at the 90 degree angle to the end of the block stamp pad area as the one I am referencing..
Whether that apparent angle is because of the perspective the picture was taken at or actually they are not square to the centre line of the bores isn't clear - but my impression was the broaching was done and therefore the marks created were always in-line with the bore centreline.. these appear in the posted pictures not to be!
2  Camaro Research Group Discussion / General Discussion / Anybody ever follow up a listing like this to see whether it is legit or not? on: April 16, 2014, 07:07:32 PM
from a noted Toronto Sun newspaper..

http://www.autosource.biz/Ad/1969_Camaro.htm

Randy
3  Camaro Research Group Discussion / Mild Modifications / Re: Which crossflow/transverse muffler on BBC on: September 25, 2013, 05:17:47 PM
This very timely since I was just at a muffler shop today asking the owner I know well, what type of mufflers/system he thought from his experience would sound good on my car, which I plan to change soon.
I will be following this thread and poll very closely - great Thanks.. - Randy
4  Camaro Research Group Discussion / Originality / Re: Astro Ventilation Window Markings on: September 02, 2013, 10:26:46 AM
GM Vintage Car Services in Oshawa Ontario (George Zapora) - can assist you with exactly the date of production, shipping, and all other details such as delivered options, through his database of Canadian imported and sold cars.
All you need to get the entire documentation package from them is your Visa # (I believe it is near or slightly over $100 now) and the VIN # and he or one of the staff there can help you out - sometimes immediately over the phone as he did when I inquired about my car, prior to buying it years back..
I don't presently have the 1-800 number for the department - but it should be available via a Google search or maybe someone else will post it on here for you if you have an interest..
Randy
5  Camaro Research Group Discussion / Maintenance / Re: Front Brake Hoses.. on: August 08, 2013, 05:29:38 PM
Thanks John..
6  Camaro Research Group Discussion / Maintenance / Re: Front Brake Hoses.. on: August 06, 2013, 10:20:03 PM
Getting to the point in the next night or two where I intend to bleed the brakes to try and tighten up the pedal and I thought I might as well try and flush the whole system with new fluid while I'm at it..
Couple of ??'s here prior to starting it:

What type of fluid would have been used in a '68 system from new..  DOT3 or 4? And if the answer to that is DOT3 is there any advantage or detriment to upgrading to DOT4 at this point?
How much fluid should it take to get most if not all of the present fluid replaced by bleeding each cylinder or caliper at a time until the old stuff is finally purged out?
Can DOT4 be used as the replacement fluid if DOT3 was normally the choice for a '68 system - and will it co-exist with any remnants of DOT3 that might still remain (I thought I read somewhere a couple of years back the DOT4 is backwardly or downwardly compatible - but DOT3 not forward or upwardly so) but not sure why..?
I don't have a vacuum bleeder and probably won't get one for the rare number of times hopefully this job will be necessary - but will just getting my 'helper' to pump and hold the pedal while I crack each subsequent bleeder screw, make for a very long drawn-out deal until most if not all of the old stuff is purged out?
And finally - I would assume that purging would be done in the same fashion IE: furthest wheel way from the master first, flowed by the second-most one, etc. etc.. 
Thanks - Randy
7  Camaro Research Group Discussion / Maintenance / Re: Front Brake Hoses.. on: July 30, 2013, 10:37:03 PM
Thanks Ed - my first though (if nothing obvious poked out at me) was to try and bleed them - although in the nearly 15-20 years since I took the calipers apart and cleaned up the bores some and put new 'O' rings and seals everywhere, this is the first instance of problems they would have ever provided - IF they are in fact the problem.
I was always expecting at some point to have to have SS sleeves pressed in - but the rebuild back 'when worked so well I have actually never really given it a second thought until I just now realized how long it has actually been..
Thanks again..
8  Camaro Research Group Discussion / Maintenance / Front Brake Hoses.. on: July 30, 2013, 08:44:38 PM
Can anyone recommend part numbers I could use to try and order some replacement front brake hoses for my '68 Z2/8?
Most Wagner-type listings I have referenced don't pull up appropriate part numbers for vehicles that old.
My pedal suddenly got very soft when I was getting home from storage back in early May.. (I'm almost ashamed to admit that it hasn't moved since) and the level in the master seems reasonable when I checked it in passing, last week - and I'm wondering if I have a hose or two getting soft as they were new back in the mid '90's and may be the problem now..
The front calipers aren't leaking at all and although I haven't pulled the back wheels off to check there is no leakage anywhere that I can see on the inside of them or the drums, so I'm thinking it most likely a hose expanding and giving me that soft feel.
I'm open to any other suggestions - since I plan on trying to figure this out next week, so I can try and get at least some usage out of the car before I have to put it back into Winter storage again..
Thanks - Randy

9  Camaro Research Group Discussion / Originality / Re: Chambered Pipe Vs. Regular Muffler Bracket hole for 1969 Z28? on: July 22, 2013, 07:14:39 PM
If you have an AIM for '69 models I believe it probably give the road clearance specs near the front of it (I know the '68 version I have does)besides showing the measurement reference points as well..
Randy
10  Camaro Research Group Discussion / Maintenance / Re: 1969 Z/28 DZ 302 overbore to .040? Piston Source? on: July 22, 2013, 07:10:07 PM
You may wish to check out the CHP site to see if it states what Jerry uses for his 302 rebuilds or racing engines - or better yet fire him off a call or email and see if he sells any particular ones himself - besides asking him of course, for particular preferences he has and why..
Randy
11  Camaro Research Group Discussion / Maintenance / Re: 1969 Z/28 DZ 302 overbore to .040? Piston Source? on: July 21, 2013, 04:41:28 PM
Chick - Yea, there are a lot more lately than there ever were before - for sure..
I would like to try and get some at some point myself as my .030"s are pretty loose in the MO although when I last had it in the car they seemed still to work pretty well.
A 1/16 / 1/16/ 1/8 ring pack can't take too much rocking before they start leaking some I would imagine though..
I would also imagine anyone who doesn't want the full load that some of these full pop up pistons provide could also probably request the tops be cut some to lower the compression down to a somewhat more manageable factor like a shade over 10:1 if they asked J&E prior to ordering..
12  Camaro Research Group Discussion / Maintenance / Re: 1969 Z/28 DZ 302 overbore to .040? Piston Source? on: July 20, 2013, 11:42:18 PM
Try:

http://www.jepistons.com/Catalogs/SRP/Chevy_SB/302-327_dome.aspx

Randy
13  Camaro Research Group Discussion / Restoration / Re: Huggar Orange touch up paint on: July 14, 2013, 11:54:01 PM
Just take the car to any paint supplier that has a scanner and get it scanned in an appropriate spot where it would have received a similar amount of wear or abrasion and/or fading from the sun and get them to run up a small test sample from scratch or if the scanned code can be matched to a know color code in a sample book - if good at their job they can usually advise you from there.
Most sharp guys in body shop supply paint stores can usually give a pretty good estimate of how close they can match up any existing paint on a vehicle due to its condition and type and also from that they usually can give you some idea of how much any sample you will have made up will darken when it dries.. 
14  Camaro Research Group Discussion / Maintenance / Re: Loud Knock on: April 22, 2013, 09:36:16 PM
Just wanted to add that on the possibility that it has something to do with the attaching hardware (bolts and captured nuts) being broken or loose - I had this problem with my Z 2/8 and couldn't tighten up the bolts as the clips had broken allowing the nuts to work themselves loose up inside the pockets.
I sourced some bolts with a larger diameter and formed (I call them captured) nuts from a local GM dealer which were not just regular nuts spot welded to a clip, but actually press formed. They were quite expensive - what GM bit isn't? - but the larger diameter bolts still fit through the holes in the spring eye brackets and the formed nuts still squeezed into the holes in the body pocket with a bit of tweaking to result in a truly stronger than OEM deal..
Once finally together, although an expert judge may catch the subtle difference, this arrangement is a much stronger deal than the original size hardware and better than any aftermarket clip that just has regular nuts tacked on, certainly..

Randy
15  Camaro Research Group Discussion / Maintenance / Re: Loud Knock on: April 13, 2013, 05:03:43 PM
Does the front spring mount appear to be secured properly into the floor cavity with the 3 bolts and captured nuts?
Seems to me I heard someone else complaining about a similar noise and they found that either the formed nuts or their retainer clips had broken and things got flopping around when a big enough bump was hit or at a particular angle on one side but not at all when the other hit a similar bump..
You can't really see if all is well if the car is raised on a ramp lift where the load is pushing the front spring eyes up into the pocket - since it loads the entire spring, pocket, and attaching hardware to sometimes make it appear to be intact and normal.
Only way then is to give the bolts themselves a turn to see if they are in fact tight - and obviously if on a post style lift any looseness should be more readily apparent at least visually..
Other possibilities - spring eye bushing itself // spring mount/bushing, or u bolt problems // shock mount problem // or exhaust hanger on that side if dual exhaust..  

Good luck - curious to know what you eventually find..   Randy  
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