Hello,
I've had a new alternator & belt fitted to my 1989 1.7TD several days ago. When I run the engine is makes a different sound to before, so I was wondering whether it is simply the sound of a new alternator spinning. The sound is like a mild thumping.
I've checked to make sure the coolant pump is turning and it all appears to be running fine.
Should I be worried?
The sound of a new alternator?
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Red Westie
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Re: The sound of a new alternator?
Sometimes you will get a whurring or whistling noise as the new belt and or bushes bed in but never a thumping noise.
The only thing I can think of that would cause this is the belt catching on something 'flapping'.
Martin
The only thing I can think of that would cause this is the belt catching on something 'flapping'.
Martin
Last edited by Red Westie on 13 Jul 2009, 06:52, edited 1 time in total.
On wings like angels whispers sweet
my heart it feels a broken beat
Touched soul and hurt lay wounded deep
Brown eyes are lost afar now sleep xxHayleyxx
my heart it feels a broken beat
Touched soul and hurt lay wounded deep
Brown eyes are lost afar now sleep xxHayleyxx
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bigherb
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Re: The sound of a new alternator?
You need to check the alternator output it could be a faulty rectifier pack in the alternator.
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Grumpy Midget
Re: The sound of a new alternator?
Think I would be worried (Yes) Have you checked that the belt runs inline with all the pulleys, Could be this which is giving the thumping sound. as the belt would be twanging. If you didnt fit it then take it back to who ever did fit it.SeanW wrote:Hello,
I've had a new alternator & belt fitted to my 1989 1.7TD several days ago. When I run the engine is makes a different sound to before, so I was wondering whether it is simply the sound of a new alternator spinning. The sound is like a mild thumping.
I've checked to make sure the coolant pump is turning and it all appears to be running fine.
Should I be worried?
(I've had a new alternator & belt fitted to my 1989 1.7TD several days ago.)
Never heard of a 1.7TD????? Do you mean a 1.7 KY.- NA
To my knoledge, and I may be wrong but thought VW only fitted 1.6D.CS.N/A & 1.6TD. 1.7KY. N/A in the T25
Re: The sound of a new alternator?
All been checked out and apparently it's running fine.
Definitely is a 1.7TD (you can see the manual here -http://www.justkampers.com/shop/type_25 ... 10839.html.
What's a 1.7 KY. N/A?
Grumpy Midget wrote: Think I would be worried (Yes) Have you checked that the belt runs inline with all the pulleys, Could be this which is giving the thumping sound. as the belt would be twanging. If you didnt fit it then take it back to who ever did fit it.
(I've had a new alternator & belt fitted to my 1989 1.7TD several days ago.)
Never heard of a 1.7TD????? Do you mean a 1.7 KY.- NA
To my knoledge, and I may be wrong but thought VW only fitted 1.6D.CS.N/A & 1.6TD. 1.7KY. N/A in the T25
Definitely is a 1.7TD (you can see the manual here -http://www.justkampers.com/shop/type_25 ... 10839.html.
What's a 1.7 KY. N/A?