Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: danzigfan on 01 October 2014, 18:04:04

Title: Cold coolant system pressure
Post by: danzigfan on 01 October 2014, 18:04:04
Evening guys, I've done some oil change on coworker's clit last sunday and while taking a sample of coolant to determine it's freezing point I expected some hissing or vacuum at least when opening the cap - but nothing. Well that's logical because engine was cold..even if it was a renault....
So I did the same on my omega few minutes ago, note she wasn't running for two days now and here is what happened 

youtube.com/watch?v=NuorLD5oYdc ,

Why is there still a pressure in the system? She has a small coolant leak, no mayo in it .

Just noticed link doesn't work, sory guys, I forgot how to paste it. 

http://youtu.be/NuorLD5oYdc
Title: Re: Cold coolant system pressure
Post by: zirk on 01 October 2014, 18:11:34

https://www.youtube.com/watch?v=NuorLD5oYdc       ;)
Title: Re: Cold coolant system pressure
Post by: danzigfan on 01 October 2014, 18:13:06
Thanks Zirk, I'm getting a bit rusty  ::)
Title: Re: Cold coolant system pressure
Post by: chrisgixer on 01 October 2014, 18:23:29
Depends on ambient temp when the cap was tightened in the respective car.

I'd suggest the omega cap was tightened at a colder temp than the cleo. Then opened at a warmer temp. or at a a lower sea level.

The amount of pressure released from the omega was minimal.
Title: Re: Cold coolant system pressure
Post by: chrisgixer on 01 October 2014, 18:25:03
Or the cap is faulty or there is a leak on the Renault crapo.
Title: Re: Cold coolant system pressure
Post by: danzigfan on 01 October 2014, 18:27:00
It happens all the time, cap was opened last time some two weeks ago, at 20deg/C, now it's 10deg/C
Title: Re: Cold coolant system pressure
Post by: danzigfan on 01 October 2014, 18:29:03
So I'll start with cheapest fix for now. Just need to get a spare cap, thanks.
I just hope it isn't HG, could be the end of her, she'll need a cambelt change soon too
Title: Re: Cold coolant system pressure
Post by: chrisgixer on 01 October 2014, 18:30:55
It happens all the time, cap was opened last time some two weeks ago, at 20deg/C, now it's 10deg/C

Is it vacuum or at pressure? ( mega I mean )

Cleo worth trying new cap or pressure test for leaks.
Title: Re: Cold coolant system pressure
Post by: danzigfan on 01 October 2014, 18:32:18
Pressure deff, I can feel it hissing out