772 fans and unstamped fans

[ZLP955]

Is it worth starting a list of fan numbers and dates versus assembly plant, build date and engine RPO?
The only drawback is that it's virtually impossible to say with certainty if a fan is original to the car, but maybe by contributing our data we can see a pattern (or not) in dates and usage?

[ko-lek-tor]

I really should not contribute as I am not sure this fan is original, but I believe it is as some stuff was in trunk(engine was gone when I got the car) 12B Nor X22. Here it is :
Hayes-Albion fan, Schwitzer clutch 10-16-68, also an extra Eaton unit FWIW.

[ko-lek-tor]

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[KurtS]

Guys,
What's the distance between the mounting points on your clutches? This is something I've been meaning to add to the article for a while...
Thanks bergy for the pic to modify.

Tim,
As the article says, no pattern.

[ZLP955]

As the article says, no pattern.

No worries, no point in compiling data if CRG already established that; so no pattern at either assembly plant?

[69Z28-RS]

Guys,
What's the distance between the mounting points on your clutches? This is something I've been meaning to add to the article for a while...     Thanks bergy for the pic to modify.

Kurt,

I measured mine this morning; it was sort of difficult with the clutch mounted to the fan, but I think I got a good measure at 1.5" (or very close to that).

Sch Prod Date       Model       Fan PN(date)   Fan PItch       Clutch (date)            Mnt Pt. Distance
09C (18Sept69)           Z28        3947772 (H69)     2.25"         EATON CV (H21J)          1.5"

[HawkX66]

I pulled the fan off my motor last night. Here's what I came up with for pics/measurements...

 Kurt, It looks like 1 1/8" for the mounting points distance: (edit, just realized you wanted it with the fan removed from the clutch. I'll try and do that tonight..)



Fan blade height looks like 2 1/2" or maybe 1/16" less, but that could be just it showing it's age... The rest seem consistent.

[bergy]

short shaft = 1 3/8"   Long shaft = 1 5/8"   Big blocks often need every bit of that 1/4" difference!

[69Z28-RS]

It's hard to measure with the fan installed..    I measured 3 or 4 times and got different values each time...  I may have to remove the fan and do it right.. OR just take your word for the 1-5/8"..

[bergy]

Big Block is the short shaft

[KurtS]

And if the BB has a 4-core rad, it must be a tight fit....

[HawkX66]

Here's the measurement pic for you Kurt...

[BULLITT65]

I looked pretty close at mine and I couldn't find any numbers other than the date that I posted. Kurt and I had talked about it quite a while back and his feelings were it was original and he wasn't surprised it didn't have the stampings. Gary, your car and mine are pretty close in dates. Mine rolled off the line on August 22, 1969. There's no evidence that the fan was repainted at any point and I know positively it hasn't been painted since 1982.
I'll take another look when I get home tonight, but I seriously doubt I'm going to find anything.

Sarge your car and my car are "pretty close" my NCRS production date is 8/19 AND I have the same fan as you on my Z.  Interesting....

[69Z28-RS]

Austin,

Your fan is the same, but not the clutch is it?   ie.  Is your 'fan to pump' distance on your clutch 1-3/8" or 1-5/8"?

[BULLITT65]

I wish I was closer to the car to take a measurement for you. I would only be guessing that it has the longer distance at this point. (My pics don't have a measurement in them for that). My point was that at the least both cars received the same fan. There are other guys out there with 08C cars, but I unsure if they still have the original fan or clutch for that matter.