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how much cooling required?
I deleted the cooling fan on my 300sd. I have ordered an electric fan controller with a probe that slips in between the cooling fins on the rad. I am now sourcing electric fans. All the hotrod and jeep guys rave over the two speed fan out of a 90-95 ford taurus as it has an integral shroud, low profile and massive air flow. The fan is reported to draw 90A on start up and the controller cannot handle that, so would require a heavy duty relay to be added to the circuit.
My question is how much cooling does this car really need? The taurus fan on high speed can cool a small block chev in texas heat, I am only trying to cool a 617 in canada. As of right now I am running NO FAN but will need one by summer. I cant even recall the stock viscous fan ever coming on, even stopped in traffic during the summer. Would a smaller FREE fan off a civic work or should I PURCHASE the taurus fan and a heavy duty relay?
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1982 300sd, new project car to restore It doesn't matter if you know what you're doing, as long as you look like you know what you're doing. |
#2
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What year sd?
Heck, sorry I'm confusing my cars. Don't mind me. I am guessing the aux fan is not kicking in correctly? Do you even have an aux fan? Every time my diesel would be hot the aux fan would drop the temp in seconds, the stock units were very effective once they kicked in.
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TC Current stable: - 2004 Mazda RALLYWANKEL - 2007 Saturn sky redline - 2004 Explorer...under surgery. Past: 135i, GTI, 300E, 300SD, 300SD, Stealth Last edited by tbomachines; 05-05-2013 at 12:57 PM. |
#3
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The taurus fan should probably cut it. IDI diesels put a tremendous amount of heat into the coolant. Add to that the somewhat undersized radiators MB used and you end up needing a good fan to keep things in check. You might even need the fan when moving down the road, the air flowing naturally through the radiator might not be enough.
Are you still running air conditioning? How hot does it get in Ontario? In the summer my 350SDL spent most of the time with the fan clutch locked up, the fan roaring away. -J
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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket Tesla Model 3. 205,000 miles. Been to 48 states! Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels. 2014 Cadillac ELR 2013 Fiat 500E. |
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