Week later update... Fitted a new rad and very slowly refilled the coolant (well just plain water at the moment), and let it run. 15 minutes later, engine still running, and temp looks like it's sitting in the middle: I didn't let it run any...

In my case i only got the noise in the vid when it was proper hot.. 90c plus

Once the new rad arrives, I'll start it up and record a video for your judgement

I do have a noise when the engine is running, but it sounds like it's coming towards the top side, and it's not quite as loud as that. Hoping it was just noisy tappets

Thanks all for your input. Sounds like a new rad might be the best way forward then. I'm a little bit apprehensive - I'm still not sure if the liners have slipped so spending £100 on a rad seems like it might be foolish before I've ruled out if...

That's with the tap open just a small amount. Fully open and I get soaked from the splashback out of the top :D

Thanks both. I've just left some concentrated Holts in it for the last half an hour. Plenty of little copper flakes coming out. Here's a video of the flow - you can see that the water overflows from the top before it starts draining out of the...

Afternoon, Lovely weather. Finally got the rad out today - been blasting each entry/exit with a hose until the water runs clear. I did notice that the flow of water in to the top hose is quite restricted - any mid-high pressure from the hose and...

Thanks for that - good to know I won't need to remove the fan. I managed to persuade the first bolt out with a propane torch, and I found the other behind that piece of unknown plastic trim. Just like the first one, it's also spinning freely so...

I dont think you will need to remove the fan. -Remove both coolant pipes from the radiator and try to position the thermostat in an out of the way spot. -Remove the top portion of the fan cowling. -Remove the two metal clips at the top of the...

Drained from the plug on the bottom Didn't get anywhere today unfortunately, couldn't get the bolt on the rad to loosen without the nut going with it. There's always something small in the way! Try again tomorrow

No leaks at the moment, just loosened choses while I remove the rad

I loosened the clip and pushed the hose back slightly, that's where the drip is coming from

Pardon the stupid question, but where is the bolt on the driver side of the radiator? There's one on the passenger side (although it won't come free because the nut is spinning freely - any tips?), but I can't see one on the driver's side. I...

I'm sure the pipe from the radiator to the expansion is correct because I can blow through it and hear bubbles, hopefully that means the other pipe is in the right place too

Ah I was hoping to leave the fan alone. Someone before me has nicely butchered the nut on it

It was a bit rusty coloured at first, then eventually ran clear. I'll take the rad off tomorrow - is it a pain to get out?

Perhaps tomorrow I'll remove the rad completely and try and give it a good blasting. Any ideas what this noise in the video could be? It might be a red herring, but I didn't hear it before the strip down

I broke my bucket :( This is the flow out of the drain plug with the hose in the top pipe - I couldn't turn the pressure up very high because it would just blow back out the top. I gave the bleed pipe a good blow from the rad side, and I could...

To the best of my knowledge, it was good before I stripped everything down I will try this now.

This is what comes out of the bleed pipe with the engine running and when revving: It starts with a steady spill when idling, then as I rev it seems to increase to a steady stream before stopping altogether. I am not sure, should I undo the...

Just tried it again after leaving it for a while. Tried filling via radiator top hose, but it was already full. The metal pipe on the other end that goes to the block was also full. Started it up, ran for a few minutes before coolant was being...

When you say fill the radiator, do you mean fill it directly through the top hose?

Before filling the system, I stuck a hose in the top of the radiator and removed the drain plug to try and flush as much crud out as I could

Just tried to test for exhaust gases again. Coolant started to get pushed up through the device before I could give it enough time to let the liquid change colour. Something is causing the coolant to overflow pretty consistently. Cabin heater...

Just ran it again until it started going in to the red. Coolant still gushing, heaters on full blast max temp. Noticed that radiator feels cold all over - no hotspots on the top or bottom (from the limited places I could feel it anyway)

Afternoon, I've had another go at filling the coolant. I drained as much as I could from the radiator, and made sure the bleed hose was clear. Filled up until it was at the neck level, then started the engine. Filled up a little more after a...

Let's hope it is an airlock then. Are they a pain to clear? I don't want to let it idle for too long if the temp keeps spiking. As for that device - there aren't any extra fans that I can see (around the rad anyway), I'll have to try and follow...

Update: Left it running with the radiator cap off, but coolant starting gushing out after a few minutes. Not sure if that's expected? Put the radiator cap back on and let it run again, temp needle went in to the red 🔴. In terms of leaks, found...

I should clarify - when I say 'a while', I mean for today while I check for any leaks. The wrap will be arriving tomorrow and will go straight on