Thread: Name This Noise

Guessing TD5..

Mine had a noise like you discribe.
It was the viscous fan mount bearing, the one in the timing case.
Mine was turning the outer shell in the housing.
Give away was movment at the fan blades, grabed both sides and wobbled

Yes, Sorry, the car is a TD5 Auto.

I replaced the viscous fan assenbly in darwin, Are uou saying it might be inside the motor at the front???

Thanks

Could be the front Cardan universal joint on the way out.

If it lets go, and the crickets do sound ominous,it will most likely destroy your auto case when it breaks and thrashes around.


Trev.

Originally Posted by trev

Could be the front Cardan universal joint on the way out.

If it lets go, and the crickets do sound ominous,it will most likely destroy your auto case when it breaks and thrashes around.


Trev.

x2

Or just the usual exhaust manifold leak. Check the rear most nut/stud & see if it's still there.

Originally Posted by Sven_040

Yes, Sorry, the car is a TD5 Auto.

I replaced the viscous fan assenbly in darwin, Are uou saying it might be inside the motor at the front???

Thanks

There is a bearing held in the timing case by a circlip.
The viscous fan mounts to the shaft that goes through it.
This thread may help...http://www.aulro.com/afvb/technical-...hlight=viscous

Make sure you check your front shaft as mentioned 1st.
Costly if it is that and it "lets go".

With your window down, find a modestly steep hill and if it is the front shaft universals then you should hear it even below 1600 as soon as the load comes on just starting up the hill from stopped. It will clearly increase in frequency with shaft rotations increasing with increasing road speed. Does sound like crickets. Easier still get under the car and have a look.

My experience with exhaust manifold leaking is that it sounds a bit like a slipping fan belt and you will find the loose or missing nut/s as previously stated.

Good luck finding it.

Try this for a test....

Turn off your climate control and check if the noise has stopped. If so, your clutch bearing on your AC compressor is likely shot.

Symptoms sound exactly like mine.

Have a read of "Disco 2, front prop shaft grease points" there's some pics & explanations in this thread that may explain what you're experiencing & failing that, it's always a good idea to be sure your joints are well lubed, my rubber boot protecting the furthest forward uni was split therefore, even when I filled it as much as possible with grease it'd just fling out with the rotation of the front shaft. Fingers crossed my new boot is in my post box (cheers Phil at discovery spares) today!!!
A job for the weekend