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OEM Radiator holes?

S

Shut

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Hi

IMG_6320.jpeg


The marked with a red arrow is for drain right??

And marked with the yellow arrows, whats is the function??

I have the OEM radiator but now have intalled an aluminium with electric fans

Thanks for all
 
The yellow is for an automatic car. The technical term is " transmission cooler"
 
RemCharger said:
The yellow is for an automatic car. The technical term is " transmission cooler"
Click to expand...

Thank you

Somebody can send me pics of this transmission cooler hoses??

I have the trans cooler in the front
 
Looks like my rad from the Tukvan. Just got a new core for mine. Not $125 any more. Got an original style, about $1000.
The original lines from the 727 gearbox to the rad were metal tubing. New lines are some fancy hi pressure hose. The hose being a bit fatter, can interfere with the shift mechanism. I bent the shaft, and made a piece to keep the hose away from the shaft. I was told, probably from someone that never owned one, that I needed a dedicated transmission cooler, like a turbo 400. I use the radiator for the cooler, same as stock.
We have been over hill and dale with no problems. We weigh 6600. However, i think a transmission cooler is a good edea.
But to quote one or two members here, stock probably works fine. It does on the Tukvan.
 
Shut said:
Thank you

Somebody can send me pics of this transmission cooler hoses??

I have the trans cooler in the front
Click to expand...
The origional transmission oil cooler (heat exchanger) connections were via hard lines..NOT HOSES.....likely 5/16" aluminum tubing directly from the transmission with female flare nut connections to the oil cooler in the radiators bottom tank. The Factory Service Manual shows these connections and sizes.......
BOB RENTON
 
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Make sure the hose you buy is rated for trans oil cooling. Fuel line may be the same size but is not rated for the pressure and temperature unless verified by the manufacture of the hose.
 
RJRENTON said:
The origional transmission oil cooler (heat exchanger) connections were via hard lines..NOT HOSES.....likely 5/16" aluminum tubing directly from the transmission with female flare nut connections to the oil cooler in the radiators bottom tank. The Factory Service Manual shows these connections and sizes.......
BOB RENTON
Click to expand...
Exactly. Perhaps sourcing a pair of hard lines from a well-known vendor.
 
The fancy hose was too much money IMO. If the original is available, I would use it as others have suggested.
 
Runner 68 said:
They can also be used as a power steering cooler for a manual transmission car. :thumbsup:
Click to expand...
I like your thinking but would it satisfy 1200 psi?

Edit , it's late, I was thinking pressure side :thumbsup:
 
Last edited:
RJRENTON said:
The origional transmission oil cooler (heat exchanger) connections were via hard lines..NOT HOSES.....likely 5/16" aluminum tubing directly from the transmission with female flare nut connections to the oil cooler in the radiators bottom tank. The Factory Service Manual shows these connections and sizes.......
BOB RENTON
Click to expand...
Sort of , they were steel not aluminum, but a man of your stature would know what the size was?it's somewhat uncommon
 
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