Author Topic: Coonling System Numbers Wrong on '69Z  (Read 4753 times)

DZ302 Chevy

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Coonling System Numbers Wrong on '69Z
« on: November 08, 2008, 10:16:56 PM »
I pulled out the motor from my 10C Los 69Z for one "last" time, to re-install the origional 186 heads, and check the parts against Jerry MacNisch's book.  I found nearly everything matches.

EXCEPT
The Number on the Fan is wrong according to the book.  It is suppost to be 3947772, but is 3937779 with a date code of H68.  Do I need to find a 3947772 ?


The Radiator doesn't have a tag on the radiator.  The tanks are stamped CB and IH.  There is a tag on the core that the bottom line seams to read IC 1869,  I cannot make out the top line.   Is this also wrong?

JohnZ

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Re: Coonling System Numbers Wrong on '69Z
« Reply #1 on: November 09, 2008, 04:06:36 PM »
'69 Z/28
Fathom Green
CRG

jdv69z

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Re: Coonling System Numbers Wrong on '69Z
« Reply #2 on: November 09, 2008, 05:31:31 PM »
Interesting.....my 10B (Oct 68) Z has 772 fan. your 10C Z has 779 fan. Must be about the time of the changover?

Jimmy V.
Jimmy V.

69Z28-RS

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Re: Coonling System Numbers Wrong on '69Z
« Reply #3 on: November 20, 2008, 06:02:05 AM »
REading this .. I got curious (even though it's almost midnight).. I went down to the garage and disassembled my original fan/clutch, and found the CV Eaton clutch (the one shown for L78/COPO in CRG, along with an unstamped 7 blade fan... My car is a September 1969 build (09C)... with engine components from the last week of August.
09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette, '60 Corvette, '72 Corvette
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

jdv69z

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Re: Coonling System Numbers Wrong on '69Z
« Reply #4 on: November 20, 2008, 01:31:29 PM »
Update on my fan. Thought I had original fan, but know now I have replacement, not 772 unit. Disregard my previous comment.

Jimmy V.
Jimmy V.