CRG Discussion Forum

Camaro Research Group Discussion => Decoding/Numbers => Topic started by: rjprice on April 05, 2021, 04:29:06 AM

Title: Alternator/Water Pump dates
Post by: rjprice on April 05, 2021, 04:29:06 AM
All,

I have a '69 Z11 with engine build date of T0409.
Would an early April, say April 2 alternator be ok for this engine? Too late?
Same with an early April water pump?
Title: Re: Alternator/Water Pump dates
Post by: firstgenaddict on April 05, 2021, 05:59:02 AM
Alternators were assembly plant installed, typically in that time frame - Late April - within a few weeks prior to body assembly.  April 2 is perfectly in line -I am assuming you have a 04C pacer?
Title: Re: Alternator/Water Pump dates
Post by: rjprice on April 05, 2021, 11:47:08 AM
Alternators were assembly plant installed, typically in that time frame - Late April - within a few weeks prior to body assembly.  April 2 is perfectly in line -I am assuming you have a 04C pacer?
03E, actually.
Title: Re: Alternator/Water Pump dates
Post by: usa1ti on April 05, 2021, 03:42:34 PM
My 69 Z28 is a 05A car. Built May 13
Engine is V0430. April 30
Alternator 9C24. March 24
Title: Re: Alternator/Water Pump dates
Post by: firstgenaddict on April 05, 2021, 04:22:06 PM
A O3E pacer with a T0409 engine what is your VIN?



usa1ti
Z28'S 837 alts are not a like comparison to 834's as there were far fewer 837 dates than the later.
 
Title: Re: Alternator/Water Pump dates
Post by: rjprice on April 05, 2021, 04:46:43 PM
My 69 Z28 is a 05A car. Built May 13
Engine is V0430. April 30
Alternator 9C24. March 24
Thanks. Looking for mid march to really early april.
Title: Re: Alternator/Water Pump dates
Post by: rjprice on April 05, 2021, 04:48:04 PM
A O3E pacer with a T0409 engine what is your VIN?

626575

usa1ti
Z28'S 837 alts are not a like comparison to 834's as there were far fewer 837 dates than the later.
 
Title: Re: Alternator/Water Pump dates
Post by: firstgenaddict on April 05, 2021, 09:17:59 PM
It is my opinion that the April 2nd alternator is within normal parameters for VIN 626575 - (which was final assembled mid April)
Title: Re: Alternator/Water Pump dates
Post by: rjprice on April 06, 2021, 03:59:46 AM
It is my opinion that the April 2nd alternator is within normal parameters for VIN 626575 - (which was final assembled mid April)
Makes sense. "Official" production date was 4/14/69.  The April 2 1100834 alternator I was looking at got away so back to the search. The same date range would apply to the water pump too, right?
Title: Re: Alternator/Water Pump dates
Post by: MO on April 07, 2021, 12:59:11 AM
Water pumps are installed during engine assembly and generally dated close to that. Probably no more than a month prior, but could be within a day or two. 
Title: Re: Alternator/Water Pump dates
Post by: rjprice on April 07, 2021, 03:35:51 PM
Water pumps are installed during engine assembly and generally dated close to that. Probably no more than a month prior, but could be within a day or two. 
Thanks. Distributor, too?
Title: Re: Alternator/Water Pump dates
Post by: x66 714 on April 07, 2021, 04:00:15 PM
Water pumps are installed during engine assembly and generally dated close to that. Probably no more than a month prior, but could be within a day or two. 
Thanks. Distributor, too?
Yes....Joe
Title: Re: Alternator/Water Pump dates
Post by: rjprice on April 15, 2021, 02:26:31 AM
All,

I have a '69 Z11 with engine build date of T0409.
Would an early April, say April 2 alternator be ok for this engine? Too late?
Same with an early April water pump?

So I found a D89 (April 8, 1969), 1 day before the engine build date.  Is that acceptable?  Could they cast, machine, assemble and paint a water pump on the 8th and install it on my engine on the 9th? Did that happen?

Title: Re: Alternator/Water Pump dates
Post by: william on April 15, 2021, 03:05:27 AM
The engine was shipped w/o alternator. Installed at the assembly plant.

A few 04C cars in the db have mid-Feb 834 alternators.
Title: Re: Alternator/Water Pump dates
Post by: MO on April 16, 2021, 02:04:25 AM
All,

I have a '69 Z11 with engine build date of T0409.
Would an early April, say April 2 alternator be ok for this engine? Too late?
Same with an early April water pump?

So I found a D89 (April 8, 1969), 1 day before the engine build date.  Is that acceptable?  Could they cast, machine, assemble and paint a water pump on the 8th and install it on my engine on the 9th? Did that happen?



I think it would be reasonable if the foundry was close to the engine plant, which I assume it was. The assembly would be simple and not take long to build. The water pump would be shipped to the engine plant and installed and painted with the engine assembly.
Title: Re: Alternator/Water Pump dates
Post by: rjprice on April 16, 2021, 12:29:49 PM
All,

I have a '69 Z11 with engine build date of T0409.
Would an early April, say April 2 alternator be ok for this engine? Too late?
Same with an early April water pump?

So I found a D89 (April 8, 1969), 1 day before the engine build date.  Is that acceptable?  Could they cast, machine, assemble and paint a water pump on the 8th and install it on my engine on the 9th? Did that happen?



I think it would be reasonable if the foundry was close to the engine plant, which I assume it was. The assembly would be simple and not take long to build. The water pump would be shipped to the engine plant and installed and painted with the engine assembly.

Not sure where the plant was. Were these water pumps manufactured at Tonawanda?
Title: Re: Alternator/Water Pump dates
Post by: Red955i on April 16, 2021, 02:33:19 PM
I have an 03B pacer which I bought in 1975 with 20,000 miles on it. Its been sitting in a garage since 1986. I have never changed the pump or the alternator (or many other parts). The Tonawanda engine was assembled March 5 and the Alternator is 9 C 5 (same day). I guess someone prior to me could have changed it, but what are the odds and who cared about dates back then?  The water pump is a 7170 pump with a "T" which I have always assumed meant Tonawanda. It is dated B-11-9.  The intake (7184) also has a "T" on it and is dated B-28-9. If you look at these 7184 intakes you will see the "T" version is different. The others, which I believe are Flint castings have an oil tube hole (early) or a closed circle where they filled in the oil tube hole. The "T" intakes do not have this. Just my .02 cents!