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WHINING NOISE FROM MY 90 - PLEASE HELP!

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tjolliffe:
Hi all, got in my 90 (1986 200tidi convert) today and noticed a disticnt whining sound, when the gas is put on it whines and as soon as i come off the gas the whine stops. It's always whined a bit but it was alot more obvious when i started driving it today. I really dont know what it is but i'm leaning towards contaminated oil. Here's as much info as i've got so hopfully u guys can come up with a solution.
It's been standing for the past 10days as I've been abroad, before I left  i had it off-raoding and realised one of the CV joints needed changing so i did that. When I opend up the axle i realised the oil was contaminted so changed it but when i looked again today its still a bit creamy. Also noticed a slight rumble that seemed to come from front axle. Checked all the splines when i did the CV so doubt its those. Does contaminated oil sound like the most likely cause? I used that grease stuff to fill the swivel ball back up, could it be that/lack of? It's hard to isolate where exactly the sound is coming from, could it possibly be transfer box? Oh all the UJ's r ok aswell.
Any help would be great! Cheers guys

BK:
Diff nacked?

tjolliffe:
Yea i thought that mite be the case but I jacked up the front (pritty sure the sound os coming from the front) and doesnt seem to be much play in it. I mean theres a bit but thats to be expected.

suggs:
does it still make the noise if you dip the clutch while moving ? if it stops then its probley a gear/transfer box or clutch issue

tjolliffe:
If i dip the clutch the whining stops. I've heard t-box's can cause whining. I know for a fact mine leaks and i havent checked it in a while  :oops: , if it's low could that cause the whining?

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