Author Topic: Fan Clutch Date Stamp  (Read 3950 times)

JKZ27

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Fan Clutch Date Stamp
« on: July 02, 2011, 09:33:54 PM »
I have a fan clutch with a stamp on the water pump flange that reads B0372SC. I'm having trouble decoding it using the julian method. I picked it up used because it had a nice looking fan on it so its not real important. Thanks for the help.

John
John
69 RS/SS Cortez Silver, L48 MC1
68 RS Ash/Ivy Gold 327EFI M20

JohnZ

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Re: Fan Clutch Date Stamp
« Reply #1 on: July 03, 2011, 02:40:58 PM »
<<I have a fan clutch with a stamp on the water pump flange that reads B0372SC. I'm having trouble decoding it using the julian method. I picked it up used because it had a nice looking fan on it so its not real important. Thanks for the help. >>

Schwitzer fan clutches didn't use the Julian dating format - they used a conventional calendar method (see photo below of 4-18-68-dated clutch). I think you'll find that the 'B" is really an "8", making it 8-03-72. "SC" stands for Schwitzer Corporation.

'69 Z/28
Fathom Green
CRG

JKZ27

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Re: Fan Clutch Date Stamp
« Reply #2 on: July 03, 2011, 06:27:55 PM »
Here is the stamp. It looks like a B
John
69 RS/SS Cortez Silver, L48 MC1
68 RS Ash/Ivy Gold 327EFI M20

Paul68RS/Z28

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Re: Fan Clutch Date Stamp
« Reply #3 on: July 03, 2011, 08:06:58 PM »
How about Feb 3rd, 1972?

Mine is formatted just like the one John posted, including the spacing.

JohnZ

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Re: Fan Clutch Date Stamp
« Reply #4 on: July 04, 2011, 03:53:28 PM »
Here is the stamp. It looks like a B

Schwitzer may have changed the format after 1968 - that's as far as I've tracked the dates.
'69 Z/28
Fathom Green
CRG