electric fan question

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valdemaras
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Location: Lithuania

electric fan question

Post by valdemaras » 26 Jan 2012 12:30 pm

Hi there,
i`m planing to put an electric fan to my '86 volvo 360,
so far I've find electrical diagrams and so on,
and there one more question left: what kind of intervals i should put the thermal switch?
they varies from switching on at 75°C to 115°C and switchig off from 70°C to 110°C
so what kind of interval to use? I'm thinking about : on 92°C - off 82°C

Thanks
'86 340 1.4 sold
'92 Mitsubishi Lancer 1.3 sold
'92 Mitsubishi Lancer 1.6 scraped

'86 360 GLT 2.0i

macplaxton
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Joined: 09 Feb 2008 02:29 am

Re: electric fan question

Post by macplaxton » 26 Jan 2012 01:48 pm

Well from memory, the electric fan switch on a 340 is on at 87.5C off at 82.5C.
72 DAF 44 Estate 78 Volvo 343DL Black BeautyImageImage
82 Volvo 343DL CVTImageImage 88 Volvo 340DL Diesel

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valdemaras
Posts: 91
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Location: Lithuania

Re: electric fan question

Post by valdemaras » 26 Jan 2012 02:06 pm

there is at the shop a switch witch switches on at 87C and switches off at 82C, so maybe this is the one :)
'86 340 1.4 sold
'92 Mitsubishi Lancer 1.3 sold
'92 Mitsubishi Lancer 1.6 scraped

'86 360 GLT 2.0i

macplaxton
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Joined: 09 Feb 2008 02:29 am

Re: electric fan question

Post by macplaxton » 26 Jan 2012 04:41 pm

Sounds like the one. I have the thread sizes somewhere too.
72 DAF 44 Estate 78 Volvo 343DL Black BeautyImageImage
82 Volvo 343DL CVTImageImage 88 Volvo 340DL Diesel

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valdemaras
Posts: 91
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Location: Lithuania

Re: electric fan question

Post by valdemaras » 26 Jan 2012 05:20 pm

macplaxton wrote:Sounds like the one. I have the thread sizes somewhere too.
would be nice, if it's no big dificulties to find them ;)
'86 340 1.4 sold
'92 Mitsubishi Lancer 1.3 sold
'92 Mitsubishi Lancer 1.6 scraped

'86 360 GLT 2.0i

macplaxton
Posts: 3282
Joined: 09 Feb 2008 02:29 am

Re: electric fan question

Post by macplaxton » 26 Jan 2012 08:12 pm

You're luck is in. I managed to find my notes on the HDD quick enough.

The DAF 66 has a engine driven fan. I was looking at going electric, although there was no provision on the radiator for the fitment of a thermoswitch. So when I had the radiator re-cored, I asked if they could also solder in a brass boss for the switch. I also bought a plug bolt for it, until such time as I got round to fitting the electrics. Anyway due to theft/write-off, I never got round to finishing what I started. However, I did keep the notes.

Boss dimensions:
Image

Daf 66 / V340 Fan thermoswitch cross reference – M14x1.5 (22m Hex) 87.5C – 82.5C

VOLVO: 3286641
FAE: 36050
INTERMOTOR: 50172
: 50 22515 01436 0
FACET: 7.5146
POWERPART: PEFS120
LUCAS: SNB793
ALFRED HEYD: VRF312
QUINTON HAZELL: XEFS61
PORSCHE: 928 606 217 00
FAE:1.850.054
FAE:1.850.067

In the same thread dimensions are the following switches with different cut-in/cut-out temperatures:
FACET 1T012: 7.5146 87C - 82C
7.5064 95C - 90C
7.5104 100C - 95C
7.5142 72C - 67C
72 DAF 44 Estate 78 Volvo 343DL Black BeautyImageImage
82 Volvo 343DL CVTImageImage 88 Volvo 340DL Diesel

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valdemaras
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Location: Lithuania

Re: electric fan question

Post by valdemaras » 26 Jan 2012 08:36 pm

So as i understand you put thermal switch directly into radiator? I am thinking of putting into uper house
'86 340 1.4 sold
'92 Mitsubishi Lancer 1.3 sold
'92 Mitsubishi Lancer 1.6 scraped

'86 360 GLT 2.0i

macplaxton
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Re: electric fan question

Post by macplaxton » 26 Jan 2012 10:14 pm

Yes. You could of course put it somewhere else in the water circuit, but then the local temperature at that new point might be different.

Item 10, thermoswitch, bolts into side of radiator near bottom hose.

Image
72 DAF 44 Estate 78 Volvo 343DL Black BeautyImageImage
82 Volvo 343DL CVTImageImage 88 Volvo 340DL Diesel

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valdemaras
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Location: Lithuania

Re: electric fan question

Post by valdemaras » 30 Jan 2012 05:12 pm

so if i will put thermal switch in upper house, because it would be easier and i could do that myself, would be no need to take the radiator to the specialist, so i'm guessing i will need different temperature thermal switch, because coolant temperature would be higher in upper house then down in radiator's bottom ?
'86 340 1.4 sold
'92 Mitsubishi Lancer 1.3 sold
'92 Mitsubishi Lancer 1.6 scraped

'86 360 GLT 2.0i

macplaxton
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Re: electric fan question

Post by macplaxton » 30 Jan 2012 05:45 pm

Probably, but you'd have to do the maths or measurement yourself. I've no idea how hot it'd be up there.

There's probably a proper engineering answer for putting it down the bottom though. Something like if the radiator cools the water sufficiently at speed then it doesn't matter if it is really hot at the top and the fan doesn't need to be on.

If this is a 360 though, is there not already a threaded hole in the radiator for a different temperature sensor? Just add the fan switch on a T-piece?
72 DAF 44 Estate 78 Volvo 343DL Black BeautyImageImage
82 Volvo 343DL CVTImageImage 88 Volvo 340DL Diesel

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valdemaras
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Location: Lithuania

Re: electric fan question

Post by valdemaras » 30 Jan 2012 06:31 pm

macplaxton wrote:If this is a 360 though, is there not already a threaded hole in the radiator for a different temperature sensor? Just add the fan switch on a T-piece?
well i`ll have to check that out, and if there is a thread in radiator then all my problems are solved sm40
'86 340 1.4 sold
'92 Mitsubishi Lancer 1.3 sold
'92 Mitsubishi Lancer 1.6 scraped

'86 360 GLT 2.0i

alf
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Re: electric fan question

Post by alf » 31 Jan 2012 09:11 am

Cheers, you might use this:

Image

Uploaded with ImageShack.us


and this:

Image

Uploaded with ImageShack.us - my engine, b200 e with an 340 electric fan.
the early bird gets the worm
`87 B200E on LPG grey GLT aka Time Machine

macplaxton
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Re: electric fan question

Post by macplaxton » 31 Jan 2012 10:50 am

valdemaras wrote:and if there is a thread in radiator then all my problems are solved sm40
If not, you could get / make one of these adaptors? Fits in the hose (like above)

http://www.cbsonline.co.uk/product/Alum ... 2mm_MOIN32#
72 DAF 44 Estate 78 Volvo 343DL Black BeautyImageImage
82 Volvo 343DL CVTImageImage 88 Volvo 340DL Diesel

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valdemaras
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Location: Lithuania

Re: electric fan question

Post by valdemaras » 31 Jan 2012 12:56 pm

Didn't find any thread in radiator, so i'll keep to my first option, making and adaptor for the hose :wink:
Only one thing left - what kind of thermo-switch to use?
So i thought maybe put the adaptor in bottom hose so i can use the switch same specification as in 340 which is on at 87.5C off at 82.5C.
'86 340 1.4 sold
'92 Mitsubishi Lancer 1.3 sold
'92 Mitsubishi Lancer 1.6 scraped

'86 360 GLT 2.0i

macplaxton
Posts: 3282
Joined: 09 Feb 2008 02:29 am

Re: electric fan question

Post by macplaxton » 31 Jan 2012 01:20 pm

Yes, I'd go for the bottom hose.
72 DAF 44 Estate 78 Volvo 343DL Black BeautyImageImage
82 Volvo 343DL CVTImageImage 88 Volvo 340DL Diesel

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