Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: vauxsull on 10 December 2008, 19:13:30

Title: timing belt and what else?
Post by: vauxsull on 10 December 2008, 19:13:30: Good evening people...
last time i had my timing belt changed at the main dealers 18 months ago they pointed out i had a slight water leak from somewhere that was only visible while taking car apart. cant remember what they said it was. As it'll be due for a belt change again within the next 10k i'd rather have that leak seen to at the same time so any ideas what this could be and if so do i need to be a pimp to my wife to earn extra cash to pay for it?
Title: Re: timing belt and what else?
Post by: ians on 10 December 2008, 19:24:24: I'm assuming it wasn't the waterpump as they should have changed it anyway esp if it was leaking. If they didn't change it last time, get it done this time regardless.

Beyond that it could be the stat housing or something else in the V which they could see with the front stripped off.

Are you noticably losing coolant?
Title: Re: timing belt and what else?
Post by: alexandjen on 10 December 2008, 19:28:45: Quote
Good evening people...
last time i had my timing belt changed at the main dealers 18 months ago they pointed out i had a slight water leak from somewhere that was only visible while taking car apart. cant remember what they said it was. As it'll be due for a belt change again within the next 10k i'd rather have that leak seen to at the same time so any ideas what this could be and if so do i need to be a pimp to my wife to earn extra cash to pay for it?

What engine?
Title: Re: timing belt and what else?
Post by: vauxsull on 10 December 2008, 19:29:13: Sorry i should had added more detail. The water pump was changed at the same time and the amount of coolant i'm loosing is around half a pint every 1k miles so not much but there non the less.
Title: Re: timing belt and what else?
Post by: vauxsull on 10 December 2008, 19:30:53: Again more detail needed Alex its a 1999 V6
Title: Re: timing belt and what else?
Post by: alexandjen on 10 December 2008, 19:36:29: Quote
Again more detail needed Alex its a 1999 V6

Sounds like the hbv is leaking, does it show beneath the car?
Title: Re: timing belt and what else?
Post by: vauxsull on 10 December 2008, 19:41:17: no i cant see any signs of drips although i can smell coolant at times but cant pinpoint the area....would the H.B.V be on view while changing the timing belt though?
Title: Re: timing belt and what else?
Post by: alexandjen on 10 December 2008, 19:45:10: Quote
no i cant see any signs of drips although i can smell coolant at times but cant pinpoint the area....would the H.B.V be on view while changing the timing belt though?

Mmm good point, no it wouldn't be visible
Title: Re: timing belt and what else?
Post by: vauxsull on 10 December 2008, 19:47:56: should I be thinking "Oil cooler" is that in the area ? would that be visible?
Title: Re: timing belt and what else?
Post by: ians on 10 December 2008, 20:05:25: just about - its behind the stat. Is it a 3L or 2.5? If 3L they would have had the plenum off to change the belt, and could see the HBV better.

1/2 pint every 1k miles IS quite a lot, but if HBV I would have thought it would have gone big time by now.
Title: Re: timing belt and what else?
Post by: Darth Loo-knee on 10 December 2008, 20:10:35: Maybe worth taking off the scuttle panel which allows you to see the hbv quite easily, you may then see water marks down the pipes... if you could slightly pressurise the system only to able 10-15lb you may see the water...
Other than that it could be oil cooler plate, coolant bridge, tranfer pipe... which plenum etc needs to be removed to see properly :y
Title: Re: timing belt and what else?
Post by: ians on 10 December 2008, 20:12:01: you can just about see the HBV if you stand next to drivers side wheel and shine a torch in.
Title: Re: timing belt and what else?
Post by: Elite Pete on 10 December 2008, 22:27:04: Could also be the thermostat housing ;)
Title: Re: timing belt and what else?
Post by: Entwood on 10 December 2008, 22:51:45: If there is no sign of an actual leak .. then 1/2 pint in 1000 miles could be lost though a badly sealing Expansion cap quite easily. If the cap does not seal correctly, and pressurise the system, the water will evaporate at quite a fast rate ... been there got the T-shirt ... took ages to sus out but a new cap fixed the problem instantly.
Title: Re: timing belt and what else?
Post by: Amin on 10 December 2008, 22:56:49: Can i thread steal for a minute?

Waterpump, on a 2.5v6, connected with timing belt or alt belt?
Title: Re: timing belt and what else?
Post by: Andy B on 10 December 2008, 22:59:35: Quote
Can i thread steal for a minute?

Waterpump, on a 2.5v6, connected with timing belt or alt belt?

Alternator/auxillary/fan belt ..... but when you do the timing belt you'll have the engine stripped down enough to make changing the water pump an extra 20 min to the whole job. :y
Title: Re: timing belt and what else?
Post by: vauxsull on 12 December 2008, 19:48:44: Hello again people..
It was me that started this thread a few days ago but having terrible internet conection problems hence the delay in replying...
I like the sound of the expansion cap possibly being at fault as it'll be a cheap fix but i do remember vauxhalls saying while changing the belt and water pump there where signs of water marks staining something ( unless they where fibbing just to get more hard earned cash out of me?)