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102515 Posts in 12093 Topics by 4669 Members
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301  Camaro Research Group Discussion / Originality / Re: 68 MO 302 water pump? on: April 17, 2010, 09:34:12 PM
The 326 pump was produced in two versions from the same raw casting - one version, for trucks, had a 3/4" hole for the large bypass fitting; the other version, for Corvette and passenger cars, had a 1/2" hole for the smaller bypass fitting.

When 326 pumps with the small bypass fitting hole find their way to a commercial rebuilder, almost all of them get enlarged and re-tapped to the 3/4" bypass fitting hole, since the primary demand for them is for trucks, not Camaros and Corvettes; that's why you see so many of them with a reducer bushing to accept the 1/2" bypass fitting. In NCRS Corvette judging, presence of a reducer bushing gets a deduction, as the original factory 326 pump used in production had the 1/2" hole for the fitting.

John -

Jerry MacNeish's "The Definitive 1967-1968 Camaro Z/28 Fact Book" states that the water pump installed on all 1967 and 1968 Z/28 engines had two slightly different designs; one with a 1/2" NPT bybass hole and one with a 3/4" NPT bypass hole.  What may be correct for a Corvette, might not be for a Camaro.

 Wink

Paul
I know my original 326 water pump had the 1/2" outlet because when it went out back around the 70's, I replaced it with one with a different number, different date, and one with the 3/4" outlet.  I remember having to use the reducer for the elbow.  Unfortunately, I didn't keep my original but as of lately I have bought a 326 with a 1/2" outlet and matching date code for my engine.

But it sure cost a lot more now than the replacement back in the 70's.....LOL
302  Camaro Research Group Discussion / Originality / Re: 68 MO 302 water pump? on: April 16, 2010, 08:30:06 PM
Yeah that is a #175 water pump that was removed from the engine and if you look closely you will notice that it has a 3/4" outlet on top of the pump with a 3/4" to 1/2" reducer and then the 1/2" elbow on top of that.  Also if you look at the date code of the water pump, it does not line up with the date of the engine manufacture.....I would say that it had been probably installed in the past to replace a faulty original. 

If you look at the completed engine on album #3 you will notice that the 1/2" elbow is screwed directly into the pump indicating it now has a pump with the 1/2" outlet.  That 1/2" outlet is what the #326 pump has.  I would say that for sure they had now changed the water pump over to a correct dated one.

Just my observation......
303  Camaro Research Group Discussion / Originality / Re: 67-68 shifter mounting bracket bolts on: April 15, 2010, 06:17:17 PM
Marty.....do you have that double nut that goes on the back of the shifter mounting plate...also the square one on the front of the mounting plate?  The complete mounting hardware, bolts, nuts, and washers would be a plus.  And you wouldn't happen to have a complete shifter assembly would you?

Thanks for any help you can provide......
304  Camaro Research Group Discussion / Restoration / Re: Script Valve Covers on: April 14, 2010, 10:30:59 PM
Are these the ones you are talking about?

     http://secure.classichq.com/59-67-Chevrolete-chrove-valve-covers-pair-P1276C213.aspx

I believe these are the ones that are the best on the market.  They also have the 1968 plain chrome ones that are exact reproductions.
305  Camaro Research Group Discussion / General Discussion / Re: my new 1968 Z/28 on: April 10, 2010, 01:20:30 PM
Very Cool!  Reminds me of my first Camaro.  68 Lemans Blue, blue interior, white stripes car.  The one that got away.
Also, I noticed the dealer emblem in the trunk, Slayton, TX.  Just up the road about 100 miles.


Good luck with the restoration.

Kris
Hey Kris....what part of West Texas you from?    I'm On I20.
306  Camaro Research Group Discussion / General Discussion / Re: my new 1968 Z/28 on: April 10, 2010, 01:17:21 PM
Slaton is up the road 110 miles for me.

Yes the thermostat housing is not right...should be a cast iron one.  The bracket attached to the alternator is actually the smog pump bracket....the alternator was actually mounted on the driver side of the engine.  The smog pump was mounted on the passenger side of the engine.

BTW....if you need any info on the 68Z let me know....I have an original one for reference.....see my signature.
307  Camaro Research Group Discussion / General Discussion / Re: Rear defogger on: April 09, 2010, 10:57:40 PM
Dave.....Is your car a convertible?  The parts book shows a blower gasket #3929038 but it is for the convertible only.
308  Camaro Research Group Discussion / General Discussion / Re: Rear defogger on: April 03, 2010, 09:03:27 PM
My '67-'69 P & A says this:

     Grille- #3899746 coupe
     Hole trim cover- #3899736
     Case- #3015043
     Motor-#4918684
     Fan- #3016769   

The '68 Assembly Manual states that there is a complete case, fan, blower assembly which is part #3014891..... should be the same for the '69 coupe.

309  Camaro Research Group Discussion / General Discussion / Re: Rear defogger on: April 03, 2010, 12:13:06 PM
Close as I can get with my parts books is somewhere in the 1971 to 1975 time frame for various Chevrolet cars.
310  Camaro Research Group Discussion / Originality / Re: Starter Solenoid Number on: March 28, 2010, 08:14:09 PM
My '67-'69 P & A states that it should be #1114356 for the #1108367 starter and the #1108361 starter also.  My '68 Z28 has the original starter and solenoid and the number stamped on the solenoid is #1114362. There were probably several different numbers for the production line units but only a few service part numbers. This was to cut down on the number of parts needed to service the vehicles.
311  Camaro Research Group Discussion / Originality / Re: 68 spoiler part# 1st design on: February 27, 2010, 12:35:44 AM
My 67-69 P & A manual lists it as #3916673, but I seriously doubt that you will ever find one of the originals.  The best deal I've seen is the #3916673 one being sold by Classic Muscle in Winston-Salem, North Carolina....although it carries the same number as the original, it is a reproduction.
312  Camaro Research Group Discussion / Restoration / Re: z28 harmonic balancer? on: February 19, 2010, 09:19:50 PM
My original '68 balancer does not have the fins....Looks like the finned ones were on the earlier Corvettes.
313  Camaro Research Group Discussion / Originality / Re: 1968 Front Spoiler! on: January 29, 2010, 11:49:04 PM
Sonet, just check the piece of plastic you found under the screw, if it has a texture on it you have your your answer.  Mine had the early design and personally like it better.
Thanks for the advice....but  they are now gone to the trash....oh well...live and learn...LOL.  But like I said earlier, the original owner said he didn't remember ever seeing any kind of bracing on the spoiler and he also said it had a rough texture so I believe the first design is the way to go.

Thanks for the input Chris....
314  Camaro Research Group Discussion / Originality / Re: 1968 Front Spoiler! on: January 29, 2010, 11:43:28 PM
I learn something new every day!  And have to replace my incorrect parts, sell them, and try to survive until I find the next thing I purchased incorrectly... :-P  Though, I do believe that back when I purchased half this stuff, there were few options.  Plus, I don't think there was this wealth of knowledge.  Or the internet... heh heh
That is so true.....Back when I first got the car I tried to find a replacement spoiler and the only thing I could find was the one with the braces.  Now, finally, the original looking first design is available.  And yes back then I didn't know there was more than one design.  Learn new things every day.
315  Camaro Research Group Discussion / Originality / Re: 1968 Front Spoiler! on: January 29, 2010, 01:31:39 PM
After reading these trhead on the 68 spoiler, I'm thinking for the last 33 years I've had the late design on the 02E car. Who has the most correct early design on the market?
Thanks, Joe
Joe.....Here are a couple that I found...there are a lot of vendors advertising the early spoiler, and even giving the early part number, but when you look at them they don't look like the original early spoiler. These three do look like the original:
 
     http://www.rickscamaros.com/product.asp?pf_id=SB-15&dept_id=3350   
     http://www.parts123.com/parts123/yb.dll?userwatch~dynamicSearchPage~cadeiije  (then type 3916673 in the search box)      
     http://www.heartbeatcity.com/store/product/14394/Camaro-Front-spoiler--correct-style--68/
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