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Old 04-14-2012, 11:04 PM   #1
Mueller
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Default Volvo 240 mechanical cooling fans, direct or all with clutch?

Time to start thinking about the cooling system of the redblock when I get around to putting the motor back in, did any of the 240 (or 740) models come with direct driven fans or did they all use a clutch setup?
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Old 04-15-2012, 01:21 AM   #2
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Old 04-15-2012, 11:49 AM   #3
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No
Yes
Not since 1969.
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Old 04-15-2012, 12:05 PM   #4
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There are two styles of 240 clutch fans also. Early one with aluminum blades, and of course the later one with plastic/nylon blades.
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Old 04-15-2012, 12:09 PM   #5
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If you get a fan clutch from either a 240T or a 740T (red clutch) it is a heavy duty clutch and will offer better cooling if that is what you are after.
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Old 04-15-2012, 01:15 PM   #6
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thanks....

According to fcpgroton, they are thermal clutches? Is that correct?
(at least a few of the turbo specific models I looked at)
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Old 04-15-2012, 01:18 PM   #7
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They have a bi-metal spring in the front that operates the valve that operates silicone oil and it clutches.
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Old 04-15-2012, 01:53 PM   #8
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Looked thermal to me. The back (or front? Don't remember now) had a pretty temp-sensitive looking coil on it when I removed it to do the water pump.
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Old 04-15-2012, 02:40 PM   #9
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That would be the bi-metal spring
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Old 04-15-2012, 02:53 PM   #10
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Well there you go, then.
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