Gute abend!

Water pump bearing failed, allowed the fan to misallign, so that
the blades hit soild steel, chipped up the blades on the fan pretty bad.
radiator seems ok.
I can by a universal clutchless light weight fan, that will fit the
simple 4-bolt pattern on the pulley/waterpump (I already put in the
new water pump. . Jesus, what a pain!)
Am I asking for trouble using a clutchless fan? That stock fan
clutch/fan blade assembly is a BEAST of cast aluminum.

Thank you,
Silverbenz
1972 300SEL 4.5L

YOu can use a clutchless, but it will make a lot of noise on the highway and rob power and fuel mileage. I might think about looking at balancing the present fan by removing material from blades opposing the damaged ones so it is balanced. I did that on my 62 190c. I actually removed a whole blade when I broke one off in a water pump incident. Worked fine. I had two functional blades as I remember....looked like a little airplane.

__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

I wouldn't use a clutchless fan. I also would not chop blades off the fan, the 4.5 tends to run rather warm in summer traffic as is, lowering the volume of air it sucks through the radiator is asking for trouble. I'm sure you could find a good used fan/clutch assembly on ebay or at a dismantler for cheap! The same assembly is used on all 108/109 4.5's (it is different from 3.5's, at least 111 chassis 3.5's) and even some 107 and 116's I bet.

__________________
Current:
2021 Charger Scat Pack Widebody "Sinabee"
2018 Durango R/T

Previous:
1972 280SE 4.5
2014 Jeep Grand Cherokee Limited "Hefe", 1992 Jeep Cherokee Laredo "Jeepy", 2006 Charger R/T "Hemi"
1999 Chrysler 300M - RIP @ 221k

Silverbenz,

After replacing my failed fan clutch last summer, I was surprised in the pretty big difference it made in keeping the car cool, especially with the A/C on. And I also second the point about fuel economy. It's hard enough to keep these Djet cars from drinking so much fuel as it is!

Tom

__________________
1972 280SE 4.5

I have a good blade I'll sell you for $75 plus shipping. I also have a nearly new clutch assembly, but look on this site for my piece on converting to a theromostatically controlled electric fan set up.

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Berfinroy in CT
Present vehicles:
1973 300 SEL 4.5
1959 Rolls Royce Silver Cloud I
1959 Ford Thunderbird convertible/430
Past vehicles;
1958 Bentley S 1
1976 ex-Max Hoffman 6.9
1970 300SEL 2.8
1958 Jaguar MK IX
1961 Jaguar MK IX
1963 Jaguar E-type factory special roadster
1948 Plymouth woody
1955 Morgan plus 4
1966 Shelby GT350H Mustang

Mine is too damaged to re-balance. I was literally leaving a trail
of aluminum down the freeway. The fan-clutch seems fine.
I'll try to find a good used one from my local sources, if no luck, will
purchase the one offered here.
Thank you gentleman, as always!
Viele danke!
Der Baron

Why not get an electric fan?

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Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.

my fan seems to be really loud, especially after it starts to warm up. anyone know if this is a clutch issue. Thanks