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Author Topic: Cooling Fan  (Read 3027 times)

jszeman1

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Cooling Fan
« on: February 28, 2017, 16:00:53 »
The MB edition A catalog shows the part number for the cooling fan as 180 205 07 06.  This fan is aluminum.  My question is when did MB change to the plastic fan.  Does anyone have an early car with the aluminum fan?
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JohnS

Benz Dr.

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Re: Cooling Fan
« Reply #1 on: February 28, 2017, 17:37:43 »
I have an early 230 here and I believe it has an aluminium fan. From what I've seen, euro cars often had plastic fans while USA versions had aluminium. The plastic fan will flex and flatten out a bit at higher engine speeds so this may of been an early attempt at reduced fan drag. 
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1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC

WRe

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Re: Cooling Fan
« Reply #2 on: February 28, 2017, 18:10:10 »
Hi,
my very late 280SL has an aluminium fan.
...WRe
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66andBlue

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Re: Cooling Fan
« Reply #3 on: February 28, 2017, 22:25:35 »
Aluminum? I thought it was a magnesium alloy.
I believe Joe  (JA17) knows more how to set them on fire!  :o ;D
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Alfred
1964 230SL manual 4-speed 568H signal red
1966 230SL automatic 334G light blue (sold)
1968 280SL automatic (now 904G midnight blue)

Manfred Wicht

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Re: Cooling Fan
« Reply #4 on: March 01, 2017, 03:40:04 »
My 65 230SL and my 67 250SL both have Aluminum Fans,  I used to have a Euro 1975 280SE and it also had an Aluminum Fan.  The difference between my 65 and the 67 is, that the 67 has a fan clutch.
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Shvegel

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Re: Cooling Fan
« Reply #5 on: March 02, 2017, 09:58:44 »
66 and Blue is correct the fan is Magnesium. 
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ja17

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Re: Cooling Fan
« Reply #6 on: March 02, 2017, 21:16:55 »
Yes, magnesium they are.  For safety reasons do not used bent or damaged ones. Magnesium is stronger than aluminum but more brittle. Damaged blades have been known to break loose and go through steel hoods on sedans! They will burn also. Later fans with fluid couplings are quieter and use less fuel.
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Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback

RonDwyer

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Re: Cooling Fan
« Reply #7 on: March 17, 2017, 02:52:50 »
I'll have to save my chunked fan for a campfire this summer!  Years back we had an issue where a new cleaning guy threw all the mag shavings from the machine shop into a dumpster.  It caught on fire somehow and the fire department was in for a surprise when they tossed on the water to douse a routine flare.  The flames went about a hundred feet in the air and the dumpster was destroyed.  The fines were significant... 
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