thermostat housing tdv8

[sharmy]

MY sons 2008 model tdv8 3.6 is leaking coolant. It seems like it is coming from the V somewhere and running down both sides of the bell housing. I have read that it is probably the thermostat housing so I have one coming. The problem I have no idea where to start, looking under the bonnet gives me the hebegees, so is there any step by step instructions available? I have also read it could be the erg coolers. The egrs have been turned off, so can the coolers be bypassed successfully. Any help appreciated.
John

[p38arover]

I was looking at one at my local mechanics where they were doing that job.

It made me glad I don't have a TDV8 - that job looks like a nightmare.

[sharmy]

Well, I bought an online manual to guide me doing this job and it only shows thermostat replacement and not the housing, so I thought I would have a go at it anyway. I wish I had never started. I got the plenum off and removed the egrs and the 3 front housing hoses and stopped. To get the rear hoses off meant removing a lot more stuff, so, as I was already way out of my depth I gave up and put it all back together. I was doing this job to get the vehicle ready for sale. It was also leaking badly from the cam cover gaskets, but at the last service the mechanic tightened up the cover bolts and the leak has all but stopped. The upshot of this is it going up for sale cheap, as is. It will be a great buy for someone who knows his way around these vehicles as a lot of money has already been spent fixing all the known faults that pop up around the 200,000 klm mark. I will be listing the vehicle on the market place in the next few days along with photos and a list of the work already done.
John

[haydent]

sounds like you got pretty close. its frustrating and suprising when LR misses something in their factory workshop manual. there's another brief mention with diagram in the engine section but no actual step/step guide or torque specs...

[Tins]

Looks like fun... not.


https://youtu.be/AMkySd49VhE

[peterjj]

I've had a coolant leak from the TDV8 V. It was the oil filter\fuel cooler assembly. If you get the thermostat assembly replaced have a good look at this while in there. Just in case. Have also heard of the EGR coolers leaking.

[sharmy]

It's been listed on market place-----Cheap[bawl]

[haydent]

It's been listed on market place-----Cheap[bawl]

its not too late to keep it [happycry]

[discorevy]

It's been listed on market place-----Cheap[bawl]

I've done a couple of these now, and while it's a bigger job than the TDV6 one, it is still doable.
If You weren't almost as far away as you can get from here I would probably buy it pending inspection.
Isn't there anyone that can do the job over that way, so you could keep it?

[sharmy]

I've done a couple of these now, and while it's a bigger job than the TDV6 one, it is still doable.
If You weren't almost as far away as you can get from here I would probably buy it pending inspection.
Isn't there anyone that can do the job over that way, so you could keep it?

There is no one around here that we know of. It's my sons car and he has been using it for his work and it is not suitable, plus the fact to get any work done on it he drives to near Brisbane, loosing 2 days work because of it. He is going to miss it, but common sense must prevail.

[sharmy]

It's due for rego on the 5th Feb. If it doesn't sell by then I will buy it off my son for the wife, she only does 1 trip a week into town (about 50 ks return plus a bit of running around while she is in there). A dose of aulumAseal would stop the leak for years. She would feel like Flash Harriet and her little Corolla station wagon would be easy to sell.
John

[sharmy]

Well the rego has been paid and I am going to have another go at replacing the thermostat housing. I have found instructions to get the plenum off which is as far as I got last time, but at least I won't have the worries about not been able to get it all back together. the egrs have been turned off and I found blanking plates at the end of the coolers so I am going to see how easy it is to bypass these as I gather they are also known to leak. I bypassed the egr cooler on my bt50 after having the egr turned off without any problems arising.
John

[haydent]

honestly thats the best thing to do. it doesnt strike me as a hard to access job, which is often the biggest issue you might hit with modern cars. its great if you can take your time and dont have like a 1 day deadline :) youll find the more you take off the easier its gets [bigrolf]

[sharmy]

Well I had another go at it and got it done. It was very fiddly but I put 3 camping tables end to end and put every part in line and after many hassles getting the rear hoses fitted was able to get it all back together. No leaks. Anyway halfway through the job I got a call from the gumtree ad from a guy not to far away and he came out after I had finished and bought it, so while I am sad to see it go I hope he gets a good run out of it.
John

[haydent]

I've been meaning to say, do the valve cover gaskets while at it. Well done on getting it done.

[sharmy]

I've been meaning to say, do the valve cover gaskets while at it. Well done on getting it done.

I thought about it but one nightmare at a time is enough for me. The guy buying it is an ex mechanic so he would find it a lot easier than me if he decides to do it.