100 series viscous coupling damage

G'day Col,

Any idea what caused this? Would not have thought there was that much movement in the fan to cause it to hit the radiator. So I take it that apart from the service pick up there were no signs of overheating, leaking or the like?

Kind regards

Hi all,

Went to look at damage but coupling and radiator had been sent to Toyota for warranty claim (ok). Fan was still there had more fan blade missing than I thought over half missing also inside of shroud was white from coolant loss no damage to shroud that I could see.Service guy was at a loss as to what happend said he had never seen this before(ok)
Turns out radiator was numbered wrongly and surprise surprise one has turned up and car is ready to be picked up .
Am very happy Toyota replaced every thing with new parts but am a little perplexed(big word for a Friday) as to thier not having an explanation other than the viscous coupling bleep it self. Why did the fan spit a blade?
Car is back wife is happy so Easter trip is still a go .

Col

Hi Col
I have heard of this problem b4, usually when the 100's are taken to the cape and through deep water...is it the v8 or t/d???? Apparently there is very little room between the rad and fan.
Andrew

Col
I am aware that this has happened before in the 100series. If you do a water crossing when the engine is hot (viscous coupling engaged and fan turning) the bottom blade propellors in the water and thwacks into the soft aluminium radiator. I imagine that if you keep going, the fan is then out of balance and will damage its bearing/viscous coupling (that might be arrant BS but might explain the damage).