Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: irratic on 20 July 2008, 12:47:45

Title: cooling system leak
Post by: irratic on 20 July 2008, 12:47:45

iv been chasing this leak for months.. now i think iv found it. getting to it i could do with some advise...i only loose water in certain heater positions (this is an r plated 2.5 elite with climate control) iv found it using mirrors. underneath the dis pack is a pipe (prob about 40mm) which goes into a fitting on the engine. there doesn't seem to be any clip on it. whats the easiest way to get at it? apart from taking the n/s exhaust manifold off..any help is appreciated

Title: Re: cooling system leak
Post by: Marks DTM Calib on 20 July 2008, 13:37:49

Are you referring to the steel water pipe that attaches to the rear of the block.

If so, plenum off, inlet off and remove the bypass valve and hoses etc at the back.

Then two bolts at the rear and one under the 1-3-5 bank engine mount and you will find it has a rubber O -ring in it.

replace the O ring (I use a little sealent to old it in) and clean the block and pipe mating surfaces well and re-fit.

Title: Re: cooling system leak
Post by: irratic on 20 July 2008, 14:36:58

cheers mate. that sounds a nightmare..i'll see how i go...

Title: Re: cooling system leak
Post by: irratic on 20 July 2008, 15:50:00

need help.its not coming from where i thought. the water only comes out when \the engine is running. and only when the heater is on. if i turn off the climate control i don't loose any. its not coming from the hbv. it seems to be coming from somewhere under the rear of the n/s exhaust manifold.. any body got any ideas???has anyone got a photo of that side of the engine wish the manifold removed??

Title: Re: cooling system leak
Post by: Darth Loo-knee on 20 July 2008, 15:54:41

Have you taken the Plenum, inlet manifold off like Mark suggested?
Is it the steel pipe that you think is leaking? or is it the coolant bridge?
Have a look at this link this will show you what the coolant bridge is.... :y

http://www.omegaowners.com/forum/YaBB.pl?num=1192574209

Where are you in Stoke-on-Trent?

Title: Re: cooling system leak
Post by: irratic on 20 July 2008, 17:08:02

not took the plenum off mate, i'm near heron cross roundabout. iv looked threw the gaps in the v and it all seems dry,well a bit of oil but no water...

Title: Re: cooling system leak
Post by: feeutfo on 20 July 2008, 17:19:17

something else to consider, i notice yours is a 98 as well :-?

http://www.omegaowners.com/forum/YaBB.pl?num=1216459433

Title: Re: cooling system leak
Post by: irratic on 20 July 2008, 17:29:16

aha. so there is core plus there, i bet its one or both of them... i'll be back

Title: Re: cooling system leak
Post by: irratic on 20 July 2008, 20:12:47

not the pennies. looks like head gasket at the rear

Title: Re: cooling system leak
Post by: feeutfo on 20 July 2008, 20:23:20

Ar, sorry to hear that. since hearing that omegas rarely blow haad gaskits there seem to be a phew on here recently. whats going on??? :-/

Title: Re: cooling system leak
Post by: Darth Loo-knee on 23 July 2008, 21:10:34

Did you manage to sort this problem mate?