Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: danzigfan on 28 November 2011, 06:41:36

Title: Serious coolant leak
Post by: danzigfan on 28 November 2011, 06:41:36

Good morning to all, I just took a son to school, parked at home and there was something about coolant level on MID. Took a look and there's no coolant!?! There was a small leak since I bought my omega, but not to serious. I topped it up last wednesday and done about 500 miles since - now it's empty. All was done on motorway with heating on.

I've read a lot about HBV on forum  before but haven't found a location of it on X20XEV engine, only on V6.
Can you help me to locate the leak and HBV please?
Thanks

Title: Re: Serious coolant leak
Post by: skyblue on 28 November 2011, 07:43:14

Sorry not clever enough to put the link up here  but have a look in the maintanance section  as there is a guide on how to change it etc. Hope that helps you out

Title: Re: Serious coolant leak
Post by: danzigfan on 28 November 2011, 07:45:32

Ok, I believe I've found a leak. It's not the HBV. There's a really small leak on the conection of radiator and one of two 'temp sensors' or what they are...lower one on the right if looking towards the engine bay.
And thank you for the reply, skyblue

Title: Re: Serious coolant leak
Post by: fiend61 on 28 November 2011, 08:06:31

just incase you havent found leak the hbv is 'hidden' down here
(http://i1133.photobucket.com/albums/m585/Roger_Short/P1050674.jpg)

Title: Re: Serious coolant leak
Post by: danzigfan on 28 November 2011, 08:29:35

Thanks fiend61, I've found it and it's dry. Does anyone know what is the lower part connected/screwed into the radiator? Is it a thermoswitch or something else?

Title: Re: Serious coolant leak
Post by: danzigfan on 28 November 2011, 11:25:15

A bit late but I hope this link will work. It's screwed into the radiator, can be seen on the side of the fan (http://s3d3.turboimagehost.com/t/9858834_28112011004.jpg) (http://www.turboimagehost.com/p/9858834/28112011004.jpg.html)

Title: Re: Serious coolant leak
Post by: danzigfan on 12 January 2012, 11:33:18

I digged out my old topic about coolant leak because I've found the reason for it. It's leaking from where fan switch is connected into radiator. Serious leakage....

I know that radiator is two years old....could it be just fan switch not tightened enough?
Is the thread in radiator metal or can it be braken if trying to tight it a bit more? Thanks, Stan

Title: Re: Serious coolant leak
Post by: PhilRich on 12 January 2012, 20:34:23

Best to remove the fan switch sensor & either renew the 'O' ring seal or use PTFE tape to reseal the thread rather than trying to overtighten it & possibly stretch the thread or overstress the joint. :y

Title: Re: Serious coolant leak
Post by: danzigfan on 18 January 2012, 19:12:58

I've changed the fan switch sensor today,  easy work and only 12 euros cost.....changed the "O" seal too and added some more seal from tube I had. No leak for now and I hope it'll stay this way.
Thanks for help, Stan