Great Idea! the only problem I have with that is usually taking something off my car means I cant drive it to Midas for them to check it. Bugger
Electric fans
Ero_sennin wrote:
Great Idea! the only problem I have with that is usually taking something off my car means I cant drive it to Midas for them to check it. Bugger
I have that same problem. Its a pain in the ass! and nobody seems to understand that.
My waterpump came from autozone, it was for a skyline and was identical to the original item. Been on now for 9 months +- 17 000km and no problems (with the waterpump anyway)
I feel for you guys, but you know, I don't think getting a lift from someone to get a part could be so difficalt, use public transport!!!!!
Just fooling around with you guys, luckily I stay not even a block away from Midas, the problem is if I don't know how to take a part out, I end up driving to someone I know can help me.
can one actually fix a viscous clutch? i havent fiddled with mine (except taking it off and putting it back on)
what actually breaks on it, stopping it from clutching?
maybe its just stuck or dirty?
can one actually fix a viscous clutch?
Just try Toby??? He has replaced, but may be know more.
viscous fan is filled with a liquid that behaves in a way thats different to most people's experience - it gets more viscous the hotter it gets.
when an engine is cool for instance, the liquid is not very viscous, more like water. it therefore offers little resistance to the two plates that are on each side. so the fan blades dont move much at all while hte engine is cold.
as it warms up if offers more and more resistance between the two plates, and therefore transfers more torsional energy to the fan blades the hotter it gets.
so it works like a ratio then - the hotter the engine, the more the blades spin!!!!
similar theory to a viscous limited slip differential which can also be found on our s13's.
limited slip differential which can also be found on our s13's.
Hands up! I ve got one of hose on my sx 😛
as it warms up if offers more and more resistance between the two plates, and therefore transfers more torsional energy to the fan blades the hotter it gets.
Slowly now Veecee. Come again. How does the viscous material get hot? Is that via the axel running from the engine to the fan then? I mean how does the liquid get its heat from?
ChemCool wrote:
limited slip differential which can also be found on our s13's.
Hands up! I ve got one of hose on my sx 😛
he's got ho's
he's got ho's
he's got ho's
in different sx codes (s13, s14)!!!
ok - corny i know!!!
ChemCool wrote:
as it warms up if offers more and more resistance between the two plates, and therefore transfers more torsional energy to the fan blades the hotter it gets.
Slowly now Veecee. Come again. How does the viscous material get hot? Is that via the axel running from the engine to the fan then? I mean how does the liquid get its heat from?
chemcool - i guess there is a lot of heat transfer from the shaft on the water pump, but there will also be a lot of heat transfer from just being in the "virginity" of the engine!!!
i dont think its extremely technical, like a specific heat source - but i reckon its gets "hot" enough to provide less slip just from being near the engine!!!
i dunno for sure - its a deduction watson!!!
RADIATOR!
mmm, quite clever, never thought of it that way, thanks china!
very clever
hehehehe, hes got ho's
HO HO HO!
i dunno for sure - its a deduction watson!!!
Ok, I follow that.
1 The whole advantage of electric fans is that they dont have to run all the time reducing the load on the electrical system and not stealing engine power to drive a fan. Personally I hate fans that run all the time.
2: As long as the car has a thermostat you can run a windtunnel into the radiator and the engine temp will not drop below the thermostat opening point.
3: The viscous coupling is designed to slip over a certain load so at hway speeds the viscous fan is not turning at all. As a test rev the engine up slowly, at about 3000 rpm the fan should start slowing down and come almost to stop if you hold it there long enough.
In my view, the viscous fan offers VERY LITTLE resistance when it's cold. I mean just try turning the fan with your hand when your car is cool. So how much horsepower is this robbing from the engine? Have you tried turning the a single cam gear with your hand (nevermind both)?? MUCH MUCH harder.
As for fixing the viscous clutch - it's not possible. It is a sealed unit. The part that breaks is actually the bearings - it develops play on it and then the whole fan starts wobbling - this is amplified by the fact that all the weight of the fan and clutch is hanging off a leveraged surface on one side of the water pump, which causes intense vibrations, which causes further bearing wear. What's worse, is that it this will introduce play in the water pump bearing.
yeah, mine wobbles more than the http://WWW wobbleweb
what is even worse is that (with all this weight and drag) the original stupid water pump has PLASTIC BEARINGS!
funny japanese these
Electric fans is the best way to go, engine runs quieter with them. Just remember to make the fans come on when you switch the aircon on. Some guys forget about that.
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