annoying wheering noise

[cadetchris]

for many years Primrose has had an annoying wheering noise.

i have tried many things in order to pin point the exact cause/location, but i am still perplexed.
i initially thought it was the drive train, so over the years i have replaced the following (as they have broken or worn out)
- Engine
- gear box
- diff
- all wheel bearings
- all brakes

now the noise only seems to occur when the car is under power, if i take the car out of gear and free wheel down a hill, i get nothing but the sound of the wind and no wheer.

the only thing that i haven't touched is the prop shaft.

so any ideas what on earth it could be?

[Peetee]

The driveshaft joint.
It has replaceable bearings.

[cadetchris]

are those the universal joints?

[Peetee]

Yes

[bmcecosse]

Searched -and can't find 'wheering' - except it does seem to be used in motoring forums........ What does it mean?? Anything to do with lemons???

[cadetchris]

lol, nothing to do with lemons (though Primrose is yellow)

i cannot really describe the sound, its not a grinding sound or a whizzing sound (such as a fan blade sound) its a simple wheering sounds, sort of like a washing machine on full spin but it only occurs when the car is under load, letting it free wheel down a hill gets rid of the noise all together.

[bmcecosse]

Blowing exhaust?

[cadetchris]

nope, thats been replaced atleast 3 times since i had the car and its always been there (the noise that is, not the exhaust)

[kennatt]

clutch release bearing,does it go off when you lay your foot on the clutch whilst under power,just to slightly touch the bearing to the pressure plate.

[cadetchris]

thats new as well, the entire clutch mechanism is new, from the pedal rubber to the clutch mechanism its self (including the thrust bearing) and it was there before i replaced all that.