505 Viscous Fan

Westair

Westair

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Fellow Frogger
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Perth
Hi,
Am considering 1990 505 Wagon with "slight" fan problem. Seller has been up front and said problem occurs occasionally.
Anybody know approx cost to have fixed /replaced in Sydney or would it be better to fit after market Craig Davies or similar
 
I'd have a thermostatically controlled electric fan anyday; assuming you have plenty of room to mount it. They only come on when you need it and allows faster warmups.
Viscous coupled fans although spinning all the time generally wont spin above, I think, about 1500rpm.
Cost varies depending on if you aircon. Supercheap have them so can give you idea of range and prices. Check around as Supercheap aren't always that


Decca
 
The real McCoy from a dealer is $575 when I last checked a few years ago, there are holden/falcon units from the local Repco that have cost $110 each but need some small mods. The best option is to buy one for a Volvo V6 from Sandwood in Box Hill also $110-150 ish and they bolt straight on and appear identical to the standard Peugeot unit.
 
viscous fans spin up to 2500rpm

i had a volvo one on a 604 once and all i had to do to mount it was to slighty elongate the mouting holes, other than that it was a perfect fit
 
I had this problem about a year ago.
Go the second hand option-$100.
The fan should move freely when cold and be reasonably tight when hot.
Don't buy a new one ,as they are $$$$$$$. I think Dapco were after $450+.
You could try to buy one direct from BEHR EU. The couplings are supposed to be serviceable but no one in Aus has the jigs or dies and the Behr rep in WA only does trucks.

The main problem I had was a fierce vibration at high revs and very slight movement in the fan when cold.

I would avoid the thermoelectric fan, as it is a pain to fit.

Much easier to fit the origional equipment.
 
Hey There,

I would not even consider the after market electric fan. I have a spare Visco here for when one of our's throws in the towel.

I picked it up from a wrecker in Tassie from a 505 GTI and it cost me $70 and was off a car with well under 200k.

So they can be had at a reasonable price second hand, remember Peugeot used these fans on STI's and GTI's from around early 1983. Also there a plenty of STI's laying it wrecking yards :(

Good luck, those late wagons are a good thing!

Cheers

Ben
 
Westair said:
Hi,
Am considering 1990 505 Wagon with "slight" fan problem. Seller has been up front and said problem occurs occasionally.
Anybody know approx cost to have fixed /replaced in Sydney or would it be better to fit after market Craig Davies or similar
Click to expand...

These fan couplings gradually leak out their silicone.
You can easily replace the silicone and 'revive' the unit.
 
Viscous Fan

Mine failed some years ago on our 91 wagon and after searching the wreckers fitted an electric fan and have no problems since.
Jeffd
 
i replaced mine with one of some jap car just had to modify the holes on the replacement better thern the original
 
I'd be putting the origional back on,

They work well and fit a look correct on the car. I think these Davies Craig electric things are fine, but then again the origional is what should be on that car, why modify what works well ?

Ben
PS when i say works well I mean in general!
 
i think the jap one is the best it is a lot quiter then original and looks as good i think it is orange only diff not that u see it for the coverthingy :crazy:

i could probally get one of those nism0 stickers now with my jap viscous fan and then i would probally gain an extra 5kw at the engine and 3kw at the wheels :joker:
 
:roflmao: :roflmao: :roflmao: @ Tiop.
Don't laugh, it probably is close to the money. The general consensis is the viscous fan gobbles a few kW. Not sure how many though. I know of a couple of Pug specialists who reccomend throwing the original fan away and usng a D/C one, so it can't be a bad idea.
 
i dint laught at thier idea but just letting you know that the set up i ahve works great and the fan i have is better for noise then original, also a lot of those electric fans are very noisey. and i didnt say that it was a bad idea to install another electric. of course it is better for engine pick up but is it a mod really worth while why do manufacturers use them when they had electric fans i would say the power it robs would be miniscule and most likely unoticable, but if you have to replace then why not go electric.
But you realise that an electric fan needs electricity and that is generated by the alternator so you put higher load on that so your engine is still loaded and would probally be less efficent as machines arnt designed perfectly with this in mind are you actually gaining something or have you been told a load of bull or am i confused,

iam open to opinions

:cheers:
 
viscous fans only spin up to 2500rpm so after the engine goes past that you actually have some but very little drag on the drive

up to those revs though you are still using the engine to turn the fan

viscous fans are much better than the older type fixed fans which had a greater rake on the blades to draw air through as they also didn't have shrouds either to help direct the air flow through the radiator

electric fans do draw a lot of current so yes you are drawing power through the alternator as well to power them

if the cars came with fixed fans then i would say go the electric fan option but otherwise if you can find a good fan or rebuild the one you have then i would stick with it rather than go electric

also if the electric one dies you are without cooling in traffic where as if the viscous one dies it normally just locks up so it will still draw air through the radiator albeit suck a lot of power from the car but at least it will still cool the coolant

in a 504 i had i removed the viscous fan and hooked up 2 electric fans for cooling and these were hard wired to run even after the car was shut down

as for difference in power i can't tell you as i never ran that engine with the viscous fan on it and it wasn't standard anyway but i do know it ran warmer than a normal engine hence the twin thermos and also to get as much fan on the radiator as possible
 
My 505 has the engine driven cooling fan that is clutched in and out electrically according to temperature - sorry do not know its correct name - :confused: . However the carbon brush had worn to the exent that it no longer contacted the hub. What the previous owner had done by the look of it is replaced the three pin sensor in the bottom of the radiator with a two pin and connected it the cooling fan for the A/C. This seems to work well, although it can be noisy as all electric fans are, and I have had no problems with overheating. This may be an easy 50 cent solution.

As an aside I ordered and received a new brush for the fan. On my way out to fit it I dropped it on the pavers and it broke :cry: . Better luck next time.

Matt
 
Hi
I Have Same Problems And I Read All The Advise .went To Look For S/h Volvo V6 But Could Not Find Any Same Fan, Which Model Volvo Is The Right One? And Which Jap Car Is To Look For Simalar Fan ?
Thanks Ron
 
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