Radiator fan for a 300SD. - Mercedes-Benz Forum

 
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post #1 of 5 (permalink) Old 03-21-2012, 06:51 PM Thread Starter
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Vehicle: '82 300SD
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Radiator fan for a 300SD.

This vehicle was bought used in '09.
It had and electric fan and a plastic radiator installed and worked just fine up until some rain storms in Feb '10.
Since then, the radiator was switched with a metal-type from a '78 300D we had sitting by the house, but after the electric fan shorted in Feb '10, no fan.

Since then, we've been able to use it in-town and haven't had any serious over-heating problems as long as the vehicle's moving.
But, before we take it on any longer trips, is it possible to install an engine-driven, cooling fan without much difficulty?

It doesn't look that hard to me, but the only thing I'm concerned about is the amount of space between the radiator and the front of the engine.

Thanks in advance.
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post #2 of 5 (permalink) Old 03-22-2012, 06:20 AM
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I can measure later today the space needed for the mech fan. If the radiator is all the way foreward you should be ok.
note. an 82 300sd does have plastic tanks.

Last edited by ktmripper; 03-22-2012 at 06:23 AM.
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post #3 of 5 (permalink) Old 03-22-2012, 10:23 AM Thread Starter
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Originally Posted by ktmripper View Post
I can measure later today the space needed for the mech fan. If the radiator is all the way foreward you should be ok.
note. an 82 300sd does have plastic tanks.
Okay, thanks.
As far as the plastic tanks go, you think it might be wise to take the '78 "metal" replacement out and attempt to find a used from a junkyard?

This metal radiator actually seems thinner than the plastic one that was OEM.

I could also upload a pic if needed of the arrangement.
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post #4 of 5 (permalink) Old 03-22-2012, 03:21 PM
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The front of the mechanical fan is 2.5 inches from the face of the pulley. You'll probably want another few inches to clear the radiator. That radiator may work fine, I know the radiator in my 75 240d was copper and narrower in width but thicker in depth than the 300sd.

Why don't you just find another electric fan wire it in and keep driving? may be less trouble.
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post #5 of 5 (permalink) Old 03-22-2012, 09:24 PM Thread Starter
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Originally Posted by ktmripper View Post
The front of the mechanical fan is 2.5 inches from the face of the pulley. You'll probably want another few inches to clear the radiator. That radiator may work fine, I know the radiator in my 75 240d was copper and narrower in width but thicker in depth than the 300sd.

Why don't you just find another electric fan wire it in and keep driving? may be less trouble.
I'll have to see if I can find one that will fit onto this current radiator.
Now if I could find an exacto copy of the OEM radiator, then the easier it will be.

I'm still driving it as continual movement keeps the airflow constant.
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