3 x thermo fans stripped in one trip - GU custom brass radiator 6.5 chev GU

[AB]

Will certainly be interesting to read what caused this problem. Too much of a coincidence for all three fans to have same problem? Surely the amount of checking has them installed correctly? All indications point to incorrect installation/fan rotation, but the third installation was by a separate mechanic, both shops couldn't get it wrong? Where was the power supply picked up from? Could it be an over voltage/amperage situation? Just thinking out loud fellas, go easy.

Installation as per requirements and zero faults in both installers.

No over voltage or alternator regulator problems guatanteed.

No probs mate, it's all done 100%

[AB]

Alternator giving too much power,,,, then not enough,,,, if the brushes are only touching on the edges of the comutator it can cause problems. I think a constant supply of power may be a factor. What alternators do you normally us with a 6.5, Interesting problem though

100% regulator producing correct power

[mudski]

What else could it be mudski? The installation is faultless. So it can't be the fans, and it can't be the install... Be very interesting when you guys finally work it out!

Dunno. Im just not convinced its the fans at fault here. Only because a new one was installed and failed too.

[threedogs]

under tests it may show 100% but a loose earth strap faulty relay or such might make it play up under working conditions.
After all its a mix and match 4x4, Im doing some shops early next week I'll ask if any have heard of this happening before.
Dying to know what it is, 5 cents or $500 fix

[nissannewby]

If they are fused (which they should be) then these would be blowing left right and centre with the amount of amps required to melt these things. Even your standard relay would most likely be cactus due to the current draw.

[AB]

If they are fused (which they should be) then these would be blowing left right and centre with the amount of amps required to melt these things. Even your standard relay would most likely be cactus due to the current draw.

yep both are fused and never blew nor any signs of excessive heat/melting.

[NissanGQ4.2]

Can we have pics of the fans Andy????

[AB]

Can we have pics of the fans Andy????

I don't have any pics on my phone unfortunately mate.

[NissanGQ4.2]

I don't have any pics on my phone unfortunately mate.

I know what your going 2 be doing 2morrow then!

No one took any pics? whats this world coming 2!

[Nightjar]

Any developments with this mystery?