CVT whine....can I do anything to dull it a bit?

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Havin-a-tug
Posts: 78
Joined: 15 Mar 2014 10:57 pm
Location: Sussex, UK

CVT whine....can I do anything to dull it a bit?

Post by Havin-a-tug » 16 Mar 2014 11:16 pm

Hi.

I have a 1986 340 CVT auto. I know they tend to make a bit of a whiney noise, but this one seems to make it louder than any of the previous three I have owned and much more so than my Daf 66. It's had new belts within the last 10k and they are (supposedly, I have not checked yet) genuine Volvo ones a which I have heard are made of harder rubber than the cheaper non branded belts therefore creating more of a whine.

Anyway, I just wondered if there was anything I can do to try and decrease the whine a bit as I live in the back of beyond, yet my neighbours miles up the road can hear me coming. (Not good when you're trying to come home without being noticed)

My clutch and overdrive vacuum is spot on so it's not a case of too low a ratio, so any help would be gratefully appreciated.
Volvo 340 CVT 1986. Daf 66 SL variomatic 1974.

macplaxton
Posts: 3282
Joined: 09 Feb 2008 02:29 am

Re: CVT whine....can I do anything to dull it a bit?

Post by macplaxton » 16 Mar 2014 11:37 pm

Havin-a-tug wrote:genuine Volvo ones a which I have heard are made of harder rubber than the cheaper non branded belts therefore creating more of a whine.
I've heard the opposite (and that's why Roulunds belts creak and groan for the first 20 meters first thing in the morning).

Have a look at the green books and how to guides in the technical section. There's a pile of different noises described.
72 DAF 44 Estate 78 Volvo 343DL Black BeautyImageImage
82 Volvo 343DL CVTImageImage 88 Volvo 340DL Diesel

Havin-a-tug
Posts: 78
Joined: 15 Mar 2014 10:57 pm
Location: Sussex, UK

Re: CVT whine....can I do anything to dull it a bit?

Post by Havin-a-tug » 17 Mar 2014 12:01 am

Thanks Matt. Will have a look.
Volvo 340 CVT 1986. Daf 66 SL variomatic 1974.

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