<VV> AC oil cooler shrouding - and a bonus!

[Sethracer at aol.com]

In a message dated 9/27/2008 2:12:30 PM Pacific Daylight Time,  
dave.thompson at verizon.net writes:

I have a  64 drive train in my 63 Spyder. I was cleaning my stock 12 plate
oil cooler  when I noticed that the left end was open to the engine
compartment. In the  spare parts from the previous owner, one of the three
spare 12 plate oil  coolers has a plate that covers the right end that is
closest to the  engine. It has a bent tang that bolts in place with the
cooler mounting  bolt. There is not one installed on the car nor is there one
on the left  side of the cooler. 



Someplace I thought I read that there  should be baffles on both ends of the
cooler forcing the all the air to  flow down into the heater ducts below. I
looked in my 63 assembly manual,  Section 6, Sheet A6.00 and A7.00,  the 60
Chevy green book page A6-13  and page 6A-3 of my 64 supplement green book.
None of them show any end  baffles. Are they an after market or home made
item? Are they really  necessary on a street car in Southern California
weather?  







The oil cooler end plates were offered on the factory Air Conditioned cars,  
as I recall. Many have been purchased and put on in the aftermarket and lots  
more have been made by owners. It's not rocket science. I am not sure it is 
that  important, though. If you are putting together a motor, and you have them 
- or  the time to make a set, fine. I think it most important to make sure 
that the  thermostats are correctly adjusted and the doors are correctly 
responding. 
 
Bonus
I just took apart a motor with an interesting addition. The guy who built  it 
was an engineer. He built a connecting link between the driver's lower  
thermostat door and the upper block off plate for the recirculation of hot air.  
Instead of the normal plate, he installed a short hinged door across  the upper 
shroud with the door attached to a link to the lower thermostat  door. on a 
cold start, the upper door was open and cooling air  was recirculated back into 
the engine compartment to warm up the motor. As  the engine heated up, the 
lower thermostat opened up and opened the lower  door, as it rotated to open, it 
pulled the upper door closed and shut off the  recirculation of the heated 
air.  Nice design work!  - Seth  Emerson



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