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gearbox


mick clark

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  • Platinum Member

hi is there a mechanic anywhere in essex that knows about the gearboxes on grand cherokees, its a 51 plate 4.7 v8, also just changed the rad. its got the hydrualic fan on it that runs off the power steering pump, since i put it back on its turning slow not enough to cool the rad, its getting near time for a box of matches, regards mick

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The hydraulic fan wont turn faster till the engine is up to a temp it deems it needs it, never seen one turning fast when stood tbh, maybe someone on here has a little more experience with this.

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hi thanks it does speed up a bit when its hot but not enough, if you sit still and let it run the tempreture graduly  creeps up, ive bled and bled it hope ive got all the air out

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It wont run fast,

they only just turn, unless its getting very hot, then your hear it come on,

 

you mention the gearbox, whats up with that, ?

Ive stripped a couple down,

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  • 1 month later...
  • Platinum Member

It wont run fast,

they only just turn, unless its getting very hot, then your hear it come on,

 

you mention the gearbox, whats up with that, ?

Ive stripped a couple down,

 

What gearbox is that? Is it a NSG370, by any chance?

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  • 2 months later...
  • Platinum Member

its a quaddradrive  its the later box im told its a 45/55 somthing like that, now im losing oil pressure unless i keep the revs below 2000 then it runs at normal pressure just over 3 bar

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