Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: OMEGA VXR on 09 May 2007, 15:27:04

Title: water pump
Post by: OMEGA VXR on 09 May 2007, 15:27:04
How can you tell if the water pump is on its way out?

The 3rd cam belt was changed at 10000 miles ago when i bought it, (peace off mind!) but the water pump had'nt been changed,(didnt need doing apparently) that was last changed at 79000 with the 2nd cambelt.

The mileage at present is 101000.

Any ideas

Thanks

Lee

Title: Re: water pump
Post by: ians on 09 May 2007, 15:36:26
Should be ok after 21k.  (Normal consensus is do it every two belt changes ie 80k)

but what prompts your question?  
Title: Re: water pump
Post by: OMEGA VXR on 09 May 2007, 15:55:53
Hi ians

when i started her this morning i got a strange sort of low pitch squealing noise, (its not the fan belt) it only lasted a few minutes, all was ok, it runs fine too,ill keep an eye on it see how it goes.

I just pointed it to the water pump coz it hadnt been changed for a while thats all really!!
Title: Re: water pump
Post by: Gaffers on 09 May 2007, 16:35:09
Quote
Hi ians

when i started her this morning i got a strange sort of low pitch squealing noise, (its not the fan belt) it only lasted a few minutes, all was ok, it runs fine too,ill keep an eye on it see how it goes.

I just pointed it to the water pump coz it hadnt been changed for a while thats all really!!

alternator bearings maybe?
Title: Re: water pump
Post by: ians on 09 May 2007, 17:47:35
you've eliminated the aux belt then?

i think its safe to start it up for a short while with the aux belt off which will eliminate its tensioner, alternator, aircon, power steering bearings (it is 2L isn't it - cant see as I type this).
Title: Re: water pump
Post by: nixoro on 09 May 2007, 17:54:54
I had a grinding noise when the waterpump decided it was on its last legs and this was promptly sorted at the time a new cambelt kit & waterpump for safety sake.

Secondary air pump usually squeals noise usually comes from in front of the passenger front wheel where the pump is mounted inside the wing behind the horns better viewed from beneath
Title: Re: water pump
Post by: TheBoy on 09 May 2007, 19:15:25
Quote
Should be ok after 21k.  (Normal consensus is do it every two belt changes ie 80k)

but what prompts your question?  
Waterpump with every cambelt on 2.0/2.2...
Title: Re: water pump
Post by: JasonH on 09 May 2007, 20:48:51
My water pump made a great deal of noise when the bearings failed after 116k miles. It was however still turning and doing it's job.
Title: Re: water pump
Post by: Auto Addict on 09 May 2007, 21:22:24
Quote
Quote
Should be ok after 21k.  (Normal consensus is do it every two belt changes ie 80k)

but what prompts your question?  
Waterpump with every cambelt on 2.0/2.2...

I'll endorse that....
Title: Re: water pump
Post by: Markie on 09 May 2007, 21:48:20
doesnt sound initially lik water pump...pop the belt off by releaseing the aux tensioner - as mentioned above - to see if its the belt firstly.....
Title: Re: water pump
Post by: Taxi_Driver on 09 May 2007, 21:55:41
Quote
Quote
Quote
Should be ok after 21k.  (Normal consensus is do it every two belt changes ie 80k)

but what prompts your question?  
Waterpump with every cambelt on 2.0/2.2...

I'll endorse that....

I agree too..... :y
Title: Re: water pump
Post by: ians on 09 May 2007, 22:57:38
Quote
Quote
Quote
Quote
Should be ok after 21k.  (Normal consensus is do it every two belt changes ie 80k)

but what prompts your question?  
Waterpump with every cambelt on 2.0/2.2...

I'll endorse that....

I agree too..... :y

Is that because the consequences of failure are considerably greater due to running off the timing belt or some other factor?

I'm interested in this low pitched squeeling noise.  I have something similar which has developed on my 2L and which also goes away after a couple of minutes.    If this is the secondary air pump, is it a problem?

Cheers
Ian
Title: Re: water pump
Post by: TheBoy on 10 May 2007, 08:07:49
Quote
Quote
Quote
Quote
Quote
Should be ok after 21k.  (Normal consensus is do it every two belt changes ie 80k)

but what prompts your question?  
Waterpump with every cambelt on 2.0/2.2...

I'll endorse that....

I agree too..... :y

Is that because the consequences of failure are considerably greater due to running off the timing belt or some other factor?

I'm interested in this low pitched squeeling noise.  I have something similar which has developed on my 2L and which also goes away after a couple of minutes.    If this is the secondary air pump, is it a problem?

Cheers
Ian
Yes, the risk isn't worth it...

Unplug your air injection, see if it goes away. You will know for sure then...
Title: Re: water pump
Post by: ians on 10 May 2007, 10:05:18
TB How do we do that on the 2.0?

Cheers
Ian
Title: Re: water pump
Post by: TheBoy on 10 May 2007, 12:23:20
Quote
TB How do we do that on the 2.0?

Cheers
Ian
Its behind the bumper, in front of passenger wheel, above horns. Reach up and unplug.
Title: Re: water pump
Post by: ians on 10 May 2007, 12:27:32
Thanks TB - will have a look later.
Title: Re: water pump
Post by: Varche on 10 May 2007, 15:19:55
I'm keeping an eye on this thread as my car has been like this for a week or two now. It goes away after it has ticked over for a couple of minutes after start up. Putting the air con on at low revs brings the whistle/screech back. On mine it is definitely not the secondary air pump. It is very, very gradually getting worse i.e. takes longer to go away. the car isn't overheating or losing water. Just as well as it is 34 Deg C here.

If I decide to change the water pump what else do I need to/or is sensible to change at the same time e.g. tensioner, belt? Very approx how much UK money should I budget on parts? The car is a 2.5 auto V6.

thanks, olive  
Title: Re: water pump
Post by: TheBoy on 10 May 2007, 15:32:00
Quote
I'm keeping an eye on this thread as my car has been like this for a week or two now. It goes away after it has ticked over for a couple of minutes after start up. Putting the air con on at low revs brings the whistle/screech back. On mine it is definitely not the secondary air pump. It is very, very gradually getting worse i.e. takes longer to go away. the car isn't overheating or losing water. Just as well as it is 34 Deg C here.

If I decide to change the water pump what else do I need to/or is sensible to change at the same time e.g. tensioner, belt? Very approx how much UK money should I budget on parts? The car is a 2.5 auto V6.

thanks, olive  
olive, in your case, run car briefly with aux belt removed, see if that cures it?

Remember, on v6, with no aux belt, you have no waterpump, so don't use it like that!
Title: Re: water pump
Post by: ians on 10 May 2007, 16:22:10
waterpump should be about 25-30 pounds in the UK.

to change it you need to do all of the strip down needed to do the cambelt, so maybe consider doing that if you have access to the locking/timing kit.
Title: Re: water pump
Post by: Chopsdad on 10 May 2007, 21:13:54
Mine sounded like this.  No warning just heard the noise as I slowed through traffic

http://s123.photobucket.com/albums/o317/chopsdad/?action=view&current=MVI_1318.flv

Came home on the back of a tow truck and new Water Pump fitted next day.