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Old 02-15-2003, 09:45 PM
Join Date: Jan 2002
Location: Moved to Ohio
Posts: 101
Wink dumbest cooling fan question

its 11 deg F and I have pushed Phoenix, the 81 300TD into the shop. Here I sit, waiting as it warms, hood up, staring at the radiator cooling fan.

It has always puzzled me and since I have an hour and need to distract my mind from wondering why MB ever allowed a diesel out of a factory without a block heater, I pose this, the dumbest winter question ever posted to this great site.

Why oh why are the fan blades on the electric radiator cooling fan set in an asemetrical fashion?

Thank you all.....and may your winter mororing days be better than mine are this month

Fish E Frank
'85 white 300SD - "YCAGWYW" as in: "You Can't Awlays Get What You Want."
'85 gold 300D - "Pain"..for sale, as in..Anyone want to date my Ex-wife... I'll Pay !!
'83 300td - "Tumblin" as in "Dice"
'81 black 300TD Fenix, risen and sold, now residing in NJ
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Old 02-15-2003, 11:41 PM
Motorhead's Avatar
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Join Date: Dec 2002
Location: Ca.
Posts: 971
You can buy block heaters. Think about this...Whynwould they want to put them in every unit they sold. The cars are not always used in cold regions
The fans are set that way to reduce noise
My Truck.. 2007 DODGE, 5.9 Cummins, 6spd stick, 4X4. My car..1977 240D, OTHER WHEELS...1955 VW Oval window bug, European Delivery (Holland) with a 1700cc, 2 barrel, Porsche drum brakes. 1939 WILLYS Pick-up. 1967 Triumph 200cc Tiger Cub. 1976 Honda 550F 4cyl Motor Cycle.
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Old 02-17-2003, 10:59 AM
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Join Date: Jan 2003
Location: Dedham, MA
Posts: 58
Actually, after a certain point in time (early 80s, maybe? not sure, but definitely by 1985) all the US diesels came equipped with the block heater, but did not have the electrical cord installed. Cars came with a coupon for free installation of the cord, if you wanted it. So if you don't have a cord, you still might have the block heater iteself, in which case I think it is fairly easy to add the cord.
1992 300E with ASR
35 years of Diesels until now!
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Old 02-17-2003, 11:16 AM
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Join Date: Dec 2002
Location: Annapolis,Md
Posts: 442
Block heater

David is correct. My '87 SDL and my friend's'82 SD came std with a bl. heater. The dealer had to add the wire at delivery. SO, look under the front (pass. side on my 603) lower side of the block and maybe you have one and just need to add the wire.
Paul 1987 300 SDL; 2000 ML; '69 MGB; '68 VW Fastback
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Old 02-17-2003, 11:27 AM
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Join Date: Sep 2001
Location: central Texas
Posts: 17,277
My guesses on the fan semetry are 1. it stops some kind of resonance from setting up , or 2. it provides better hand access for wrenching.
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