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[RobG]

Thanks for the advice.
I will take the top off again and look at pressure testing the system to find out where the problem is.
What you have to understand though, unlike top notch, very experienced mig specialists like yourselves, I am a novice with very little experience and parts available, so what may be a simple job for you is usually a bigger job for me, though I am trying my best to take the advice and progress.

Not sure if just blowing into the coolant bottle will create enough pressure to identify the fault, but will certainly try and give it a go, but also trying to find a valve to put into my cap.

Will let you know any further findings on this.

Cheers

You`re trying your best and asking for guidance as you progress. That`s all anyone can ask mate

[feeutfo]

If plenum is coming off again, you could blow down the coolant pipe from throttle body, while holding your thumb over the end of coolant pipe TOO throttle body.

Both pipes are long enough to blow down, pressurize the system, AND look down the back of the engine. Only reason it won't work is if the water level has dropped below the level of the leak. In which case you'll be able to hear the air escape.... Head torch might be handy. 

[albitz]

And a spare pair of eyes or lungs would be useful if possible.

In the guide below there are pics of the pipes chris mentioned.I know you probably dont have access to a compressor etc. but the pics and info may be of some help.
http://www.omegaowners.com/forum/YaBB.pl?num=1294083883
http://www.omegaowners.com/forum/YaBB.pl?num=1225142864
The original guide for pressure testing the system.

Core plug in the rear of the head - iirc its in the middle of the rear of the head casting and difficult to even see it until other things are removed (depending which head it is) even then it would only be visible by using a mirror afaik. Standard pracice would be to remove the head to replace the core plug (if thats whats causing the leak) but I believe its possible (with patience to do it in situ by placing a flat piece of wood against the new one and tapping it into place with a hammer. :-/

[TheBoy]

I might be able to bring in a modified cap Masters, but not in until Tuesday. It will allow you to pressure the system with plenum off, using a bicycle pump (presume you or kids have a pump?)

[TheDaddy]

I might be able to bring in a modified cap Masters, but not in until Tuesday. It will allow you to pressure the system with plenum off, using a bicycle pump (presume you or kids have a pump?)

If you can.
Just drilled a hole in my cap and cut a valve out one of the kiddies bikes - maybe they will not notice  ?
and cant seem to get the system to pressurize. Cap does not seal. Obviously needs some sort of approach to ensure a seal. Maybe glueing the valve in.
Anyway - if you can bring one in on Tuesday and pop round, that would be most helpfull.

[TheBoy]

I might be able to bring in a modified cap Masters, but not in until Tuesday. It will allow you to pressure the system with plenum off, using a bicycle pump (presume you or kids have a pump?)

If you can.
Just drilled a hole in my cap and cut a valve out one of the kiddies bikes - maybe they will not notice  ?
and cant seem to get the system to pressurize. Cap does not seal. Obviously needs some sort of approach to ensure a seal. Maybe glueing the valve in.
Anyway - if you can bring one in on Tuesday and pop round, that would be most helpfull.

A cap with a valve, and 2 spare caps put in boot. Prolly have 30mins at lunchtime.

[TheDaddy]

Thanks matey - just let me know when you can pop round.

Hopefully will sort and identify the location of the leak.

[feeutfo]

Dont need a valved cap really... Just put lips together and blow! 

What ever blows your skirt up! ...as they say. 

[TheBoy]

Ok, it's absolutely phishing out from somewhere at back of passenger bank. Head or core plug.

Was going to follow DLK's suggestion of removing dis to visually check, but run out of time

Either way, guess head needs to come off

[Marks DTM Calib]

I thought they had been done on this car?

Who did them?

[tunnie]

I thought they had been done on this car?

Who did them?

Apprently ex-member MarkeyMark  :-/

[Marks DTM Calib]

Ah yes, this is Broocies old car, thought they had already been done.

[tunnie]

I recall when Guy had it, a new/different engine was fitted due to a small tappet noise? Not sure if this was before or after the heads were done, or even if they were on that engine  :-/

[Darth Loo-knee]

Another engine was fitted into the car a while ago. I know though Guy wanted  to sell it as the head gasket was leaking I know that because Guy phoned me. What happened after that I dont know, I would phone and speak to Guy to see if the work was done or not.

[TheDaddy]

So managed to get the pack off but not the plate it sits on.
Just could not manage it with my monkey hands.

Had not been informed that the car had a engine change :question -
Previous history I had from Guy was the following.

As described by the Amigo –> Since i bought her in September 2008:

New wishbones
Full cambelt kit
Water pump
Front discs/pads
Full VX clutch
Full s/s powerflow de catted exhaust tailor made & fitted by Rebel power pipes (£340)
Nearly new original MV6 alloys (£327) from Ebay
4 new tyres (£240}
New head gasket kit "£120 – May 2011.

So all very interesting.

Anyway - I am where I am.

Had a good talk with Darth Loo-knee about options and direction and a even longer chat with the wife this evening. :-?

Taking into account a few personal factors, the most feasible direction I have is to progress with this car even though throwing the white towel was nearly decided.

Even though I know that diff bushes, Power Steering pump + bodywork will still need to be done on the car at some point (diff bushes sooner rather than later  :-?) I will be speaking to Darth Loo-knee in th emorning to arrange for the engine work to be done.

Many thanks to all for there input and I will keep this thread updated with progress and eventual findings.