martin_sv
Senior Member
- Joined
- Jul 6, 2012
- Messages
- 93
- Reaction score
- 0
- Location
- North Hampshire
- Your Mercedes
- 350SL R230 2003 + CLK320cdi 2006+ 156 Alfa
Hi, as per subject line. Took my serpentine belt off my r230 sl 350 (M112) to investigate a revs related whining noise. Discovered my P steering fluid was low so topped up and seems to have reduced it significantly. Thought I'd also check the tensioner /idler/alternator and water pump by spinning and listening and apart from slightly rattly idler wheel I found a definite squeak from the water pump. Can't find a way to embed my water pump.mp3 file to be playable within a browser but you can download the tiny 10 second mp3 file (No need to log in just click on "download this file" and waterpump.mp3 will apppear
here http://www.wikiupload.com/LZ753YX5KL5UG51.
Can be opened with any of your installed media players eg windows media player
It's almost comical! Remember it's not as loud as the recording---my phone mic was right next to the pulley. It still seems noisy for a seal though---it isn't some kind of venting noise by any chance?, I know pumps have a bleed hole. The bearing feels fine no roughness and no wobble on the shaft. What do you thinK?
here http://www.wikiupload.com/LZ753YX5KL5UG51.
Can be opened with any of your installed media players eg windows media player
It's almost comical! Remember it's not as loud as the recording---my phone mic was right next to the pulley. It still seems noisy for a seal though---it isn't some kind of venting noise by any chance?, I know pumps have a bleed hole. The bearing feels fine no roughness and no wobble on the shaft. What do you thinK?
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