Capripaul
Member Since: 20 Nov 2018
Location: Liverpool
Posts: 65
  
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So after a large amount of hard work over several weekends I have fitted a replacement engine into my discovery, I did this on the drive without taking the body off and I have to say its a bit of a pain in the A?£*e to do but it was the only way I was going to get it back on the road reasonably cheap. However now the engine is in and running it has at least one blown head gasket!!! I'm assuming that's why the engine was removed by the seller in the first place, other than blowing combustion gasses out of the coolant bottle the moment I start the car it runs fine. To test the EGR coolers I bypassed the coolant pipework and ran the car but the issue is still there, I have done a sniff test and it's definitely combustion gases in the coolant so I'm pretty certain its the head gasket. My question is does any one have any top tips for doing the head gaskets with the engine still in the car, and anything I should look at/replace while I'm in there I'm in no rush so I'll take my time and see how I go, my theory is that it cant be any harder than swapping the engine but we will see!!!! 
Cheers
Paul
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 4th Apr 2024 3:29 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10773
 
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The drivers side head is much easier to do.
Passenger side is a pain !
Gasket thickness is customised to each engine (number of tabs at the front of the engine tells you the thickness)
So don’t just blindly order any gasket.
I’ve written some guides on here if you search on my user name.
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| 4th Apr 2024 4:42 pm |
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Capripaul
Member Since: 20 Nov 2018
Location: Liverpool
Posts: 65
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Thanks for that, I’ll have another search.
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| 4th Apr 2024 8:52 pm |
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Jimbob42
Member Since: 23 Mar 2022
Location: Leicester
Posts: 214
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Drivers side fairly straightforward, passenger not so. To be frank if I got offered 5 grand to do head gaskets on a car with body on I’d decline. Never again.
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| 4th Apr 2024 9:22 pm |
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Capripaul
Member Since: 20 Nov 2018
Location: Liverpool
Posts: 65
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Ha Ha it does look an absolute pain and I'll probably regret it when I get halfway through but I'm in too deep now to give up. Does anyone know if the bolts for the camshaft caps are reusable??I would assume not but I cant find anywhere selling them.
Cheers
Paul
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| 5th Apr 2024 10:17 am |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10773
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Yes. They only 10Nm
It’s the head bolts you need to renew.
Are you loosing coolant.
Are sure the oil cooler is ok?
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| 5th Apr 2024 10:29 am |
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Capripaul
Member Since: 20 Nov 2018
Location: Liverpool
Posts: 65
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Thanks, that saves me spending more money!! oil cooler seems ok, no water in oil or oil in water it's not loosing coolant but as soon as it start it is pressurises and lifts the cap on the coolant bottle. In the end I removed and coolant crossover pipe on the top of the engine and started it for a minute, as soon as it starts I get exhaust gas out of the passenger side head. It looks likes that the more difficult one so I may as well do them both once I'm in there.
Cheers
Paul
Last edited by Capripaul on 6th Apr 2024 8:56 am. Edited 1 time in total
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| 5th Apr 2024 10:53 am |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10773
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What do you mean coolant cross over pipe? Metal one at the back ? (Comes from EGRs)
Drives side is easy
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| 5th Apr 2024 11:23 am |
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Capripaul
Member Since: 20 Nov 2018
Location: Liverpool
Posts: 65
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Sorry no, I mean the water housing at the front of the Vee in front of the oil cooler. It’s
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| 5th Apr 2024 12:42 pm |
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Capripaul
Member Since: 20 Nov 2018
Location: Liverpool
Posts: 65
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Quick probably daft question but on the passenger side do you need to take the pulley off the back of the Cam that drives the fuel pump?? I can prob get it off but can’t figure out how to tighten and torque back up.?? Just weighing the job up before I jump in…. I don’t believe the plastic housing off the fuel belt can come off without the pulley being off so the cam won’t come out?
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| 5th Apr 2024 1:44 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10773
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Thought you would do the driver side first ?
I took the cam and plastic cover off as one assembly to avoid undoing the pulley.
Pain getting the plastic cover off. Probably needs to come off though
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| 5th Apr 2024 1:56 pm |
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Capripaul
Member Since: 20 Nov 2018
Location: Liverpool
Posts: 65
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Cheers for those some really good stuff to help me. I made a mistake above it’s the passenger head that’s gone (I updated the post), so that’s why I’m doing this one first, hopefully get this one out and the other side should be easy…
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| 6th Apr 2024 8:58 am |
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Capripaul
Member Since: 20 Nov 2018
Location: Liverpool
Posts: 65
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Finally finished the head Gaskets on the Discovery after a few weeks away from the car, big thanks to @Pete K for pointing me in the right direction with previous posts and the search function on here is now my best friend!!. My advice to anyone doing it, if you have half a chance of using a 2 post lift, take the body off it will make life loads easier, if like me that just isn't an option, the job is doable, just take your time and be methodical when taking stuff off and refitting. My car is going for an MOT tomorrow after being sat up for a year, I've checked everything over so it should be good to go , but watch this space..
UPDATE 2: Passed MOT so will be back on the road again..
Cheers
Paul
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| 21st May 2024 11:04 am |
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