So, as part of my strip and check of the coolant and breather system on the elite (3.2) I decided to take off the matrix pipes and the coolant valve to check it all over.
I had a bit of a struggle figuring out how the pipes actually unclipped off, but then eventually got it. The top one came off quite easy, the bottom one was the proverbial bar steward.
Before I took the hose off, I could see a green plastic clip on the matrix pipe neck on both in and out pipe as in pic below.
https://photos.app.goo.gl/hZR99TdYKTDFkYBS6although they weren't secured to the coolant pipe, just sitting on the pipe necks.
Once I had pipe off, I noticed that I could snap this green clip into the front of the pipe. Is that case, that you have to pull this green clip back towards you once pipe is back on? I don't see how that secures it though, or does it hold the clips on the pipe shut as well?
I think the HBV must have been replaced at some time as I can see some staining on the bottom of the pipe where the 3 pipes mould into 1 like it had been leaking in there at some point.
https://photos.app.goo.gl/yNVpooAgZZ23zd6M8Not sure about those green clips though. With them floating on the pipe it would suggest this has been off before.
To finish off, here's what happens when you start putting your hands into the back of an omega engine bay, there will be blood!
https://photos.app.goo.gl/UwVPqE429ZceepkGA