Doesn't sound like mine is making that noise, so fingers crossed the liners are in good condition. I've been in touch with a local machine shop who can measure + resurface the heads if necessary, so some progress is being made. When I moved house a few years back, I left a lot of my good tools...

Thanks again all for your input, it's greatly appreciated. I'm going to pull some spark plugs and see if any look obviously cleaner than the others. I'm also doing my reading and pricing up the tools required to DIY it or get it done by a garage instead. None of my local LR 'specialists' seem...

I've done a little more research in to DIYing it, and I've seen the debate about stretch bolts vs ARP bolts come up quite a lot. What's the general consensus on the matter here?

Thanks again for your advice. I don't have the tools or space to try and tackle this outside my house, so it looks like I'll have to search around for a garage that will take it on

Thanks all for your advice. I've added my town - feel free to suggest any trustworthy LR mechanics nearby! Sounds like my next best step is to do a compression test. I've replaced a HG before but that was on a Rover K series engine - much simpler. I don't have the capability or tools for this...

I've only had the car recently, previous owner said it hadn't overheated, but take that with a pinch of salt. There's some copper dust around the coolant overflow cap, so I'm thinking maybe someone tried some leak sealer before. It's petrol only. Is there a way to differentiate between HG and...

Hi all, Got a 1999 4.6 Thor. Recently noticed that the coolant level has been dropping, idling has been a little rough, and sometimes harder to start. Topped the coolant up but it's low again a week later. The car hasn't overheated, and stays around middle on the temp gauge when driving. I...