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-   -   Water Pump replaced - Now I hear birdsong! (http://www.peachparts.com/shopforum/tech-help/77529-water-pump-replaced-now-i-hear-birdsong.html)

mike65 10-19-2003 10:30 AM

Water Pump replaced - Now I hear birdsong!
 
Hi all

I've been lurking here for months now but this is my debut post so be gentle!

Last week I got the water pump on my 190e replaced the mechanic doing the work phoned me up after he'd done the job wondering if the serpentine belt had been squeeking before
at all. I said no, he said it was now and that he'd try to get working properly. When I picked the car up it was nice and quiet
so both of us thought he'd done the job. On the way home a twittering noise started to appear it got louder and varied with the engine speed.

I took off/refitted the belt myself on Friday but it made no difference. I briefly ran engine without belt and all was quiet.

On the first start of the day its fine for about 10 seconds then the sound appears quietly at first before finding its full voice which stays heard until the engine is turned off.

The pump seems to be working fine no leaks, engine temp steady. So I'm now wondering what the cause of the noise is - the belt, the pump, something else again....

Just re-cap the noise sounds like a twittering or chirping bird.

Any ideas?

Mike.

xp190 10-19-2003 10:45 AM

belt tension
 
Make sure to tension the belt propperly and that it is not greasy anywhere. If it slips or is too tight, it will make that sound, as for the temperature relation, a lot of things change when the engine starts warming up. See how close you can locate the squeaking too.

xp

mike65 10-20-2003 12:34 PM

Tensioner broke!
 
The reason the belt wont stop squeaking is that its broken, or it is now! :eek: I slacked the bolt and started tightening the tensioner but the arrow marker was'nt moving towards the measuring point
then - Crack! It was turned a turn too far....I just got home (in my van) and guess what? the parts dept of my local Merc stealership closed 20 mins ago...Bah.

Whatsmore the car is 10 miles from said dealer...how far can you drive a beltless Merc 190e before something nasty happends?

Mike.

ilmchan 10-20-2003 01:05 PM

Chirping
 
I recently had my alternator replaced and soon after I heard chirping or actually its sounds like a high-pitched turkey gobble as I'm driving along. Hard to describe but its not coming from the wheels since it can gobble when the car is moving very slowly.

Can't seem to figure out if it comes from the engine itself since it never gobbles when I'm out of the car. Other than the mysterious noise there's no apparent problem with the car since the alternator job.

csnow 10-20-2003 04:24 PM

Re: Tensioner broke!
 
Quote:

Originally posted by mike65

Whatsmore the car is 10 miles from said dealer...how far can you drive a beltless Merc 190e before something nasty happends?

Not familiar with your engine, but unless the water pump has its own belt, you cannot go very far at all.

Once improvised a short temporary belt on a car that spun just the waterpump. An idler pulley had seized. Got me home. Battery will provide ignition and fuel for quite some time without charge.

Best of luck.

mike65 10-20-2003 05:14 PM

Cheers for that, I had wondered about a temp belt of some sort, the other option might be a local guy near where the car is (Merc parked at my bosses place), an independent country garage but he's familair with 190s I told...Hopefully I can get the part tomorrow but I'm betting it being something they'll have to order..

Mike.

(ps thanks jim16671836 for your suggestion)

mike65 10-22-2003 05:30 AM

Agh! :mad::mad: :mad:

I ordered new Tensioner 9 am yesterday went to collect 9 am today and guess what? Yep they did'nt have it. Guy on parts desk
contrite but its not his fault, anyway I wont have to chance to collect tomorrow until end of the day so the job cant be done until Friday!

When a dealers parts dept goes on-line to order part from depot do they have evidence that depot has said part in stock?

Well annoyed....

Mike.


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