Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: tunnie on 29 October 2013, 20:08:15

Title: Heater Matrix Flush, hot or cold?
Post by: tunnie on 29 October 2013, 20:08:15
Been using my trusty 2.2 mostly these past months, need to get the 3.2 out and about. (Its better for 4 up touring  ::)) The heat has been poor from the vents, so going to flush matrix. Did confirm top pipe into matrix is hot, bottom one Luke warm.

Read jimbobs guide, done some research. Going to soften the hose pipes in hot water, but some say to get car hot first so that the bulk head pipes are hot. Worth doing, or cause too many issues with hot V6 lump in the way?  :-\
Title: Re: Heater Matrix Flush, hot or cold?
Post by: tunnie on 30 October 2013, 09:20:51
As no one appears too sure, I'll go with Luke warm. As I have to move it on the drive anyway
Title: Re: Heater Matrix Flush, hot or cold?
Post by: Sir Tigger KC on 30 October 2013, 10:00:28
I can't see it would make any difference either way.  :-\   It'll just make the job more awkward if everything's hot.  ::)
Title: Re: Heater Matrix Flush, hot or cold?
Post by: Elite Pete on 30 October 2013, 17:58:56
Go to the scrapyard and get the 2 hoses then fit them on the matrix pipes and block the bottom hose and fill the matrix with Fernox and hot water and leave it over night then flush it with cold water. It works wonders :y
Title: Re: Heater Matrix Flush, hot or cold?
Post by: Webby the Bear on 30 October 2013, 18:00:04
how did you get on with this tunnie? :)
Title: Re: Heater Matrix Flush, hot or cold?
Post by: albitz on 30 October 2013, 18:03:39
Quote from: Sir Tigger on 30 October 2013, 10:00:28
I can't see it would make any difference either way.  :-\   It'll just make the job more awkward if everything's hot.  ::)

It certainly can. ;D ;D
(http://i1238.photobucket.com/albums/ff500/Albs59/DSCF0741.jpg) (http://s1238.photobucket.com/user/Albs59/media/DSCF0741.jpg.html)

(http://i1238.photobucket.com/albums/ff500/Albs59/DSCF0743.jpg) (http://s1238.photobucket.com/user/Albs59/media/DSCF0743.jpg.html)
Title: Re: Heater Matrix Flush, hot or cold?
Post by: tunnie on 30 October 2013, 18:08:23
Cheers chaps & thanks for asking Webby. Job Jobbed.  :y

First thing, the heater matrix pipes came off easy as pie, thought I would struggle here, but off in seconds with scuttle still on.

I first tried to soften the pipes in near boiling hot water...

(https://dl.dropboxusercontent.com/u/803897/Omega/cooling/2013-10-30%2012.41.58.jpg)

Even though they were soft, still a feker, so in the end just left ends on, water loss was minimal, oddly reverse flushing saw hardly any loss.

Pipes all hooked up...

(https://dl.dropboxusercontent.com/u/803897/Omega/cooling/2013-10-30%2012.57.27.jpg)

(https://dl.dropboxusercontent.com/u/803897/Omega/cooling/2013-10-30%2012.57.15.jpg)

I first flushed the normal way coolant flows, that came out very clear. I then reverse flushed it, horrible merky water came out. Then went back to normal direction, then back to reverse, totally clear this time.

(https://dl.dropboxusercontent.com/u/803897/Omega/cooling/2013-10-30%2012.57.21.jpg)

Big improvement from before, on "Hi" it was only luke warm, now it was hot. Although I was hoping for more, so I dropped the coolant from the rad too. As since I got the 3.2 I was unsure on its coolant history, although it was nice and pink.

Flushed coolant system so pure water was in, it was here that heat really picked up, on the second flush of pure water hands almost burning at the heat coming out of the vents!  8)

Got the system to pure water, then drained rad again. Topped up with pure GM anti-freeze, got about 4L is in. Expecting to get a little more in after a run and the coolant stabilises.
Title: Re: Heater Matrix Flush, hot or cold?
Post by: tunnie on 30 October 2013, 18:08:43
Ouch Albs that looks like it stung!  :o
Title: Re: Heater Matrix Flush, hot or cold?
Post by: albitz on 30 October 2013, 18:18:00
It did smart a bit yes. ;D
Title: Re: Heater Matrix Flush, hot or cold?
Post by: robson on 30 October 2013, 19:14:03
Tunnie did you do any soaking with chemicals or just flushed with a hose.
Title: Re: Heater Matrix Flush, hot or cold?
Post by: tunnie on 30 October 2013, 22:47:42
Quote from: robson on 30 October 2013, 19:14:03
Tunnie did you do any soaking with chemicals or just flushed with a hose.

No chemicals just hose water  :y