Or...... warped head or failed head gasket leaking compressed air, also have a look at the radiator cap
 
Otto was doing the same but the heads were fine (got skimmed anyway), it was a blown gasket. Badly between 2 and 4 but also just a seep starting between 8 and the water passage.
As you say, only one way to know for sure and both need the same exploration.
The head should not be skimmed on the M51 diesel.
 
Otto was doing the same but the heads were fine (got skimmed anyway), it was a blown gasket. Badly between 2 and 4 but also just a seep starting between 8 and the water passage.
As you say, only one way to know for sure and both need the same exploration.
If the heads were fine, shirley there's nothing to skim? o_O
 
Found out the allowance for going to Oman this year is likely to be cut in half. My budget for getting the ol' bus sorted is now considerably shorter. Hopefully the garage will let me do a payment plan. :oops:

On the plus, I went to visit the inlaws and we did a touch over 400 miles without a hiccup. Wish my aircon worked though, damn it got warm. All of my chocolate melted. :(
 
Thought you were using electric fans?
Ay up Keith, I went back to the viscous, the fans for me felt to much too late as opposed to the viscous being ahead of the game. After the last radiator popped and nearly blinded me I've not had any other rad related issues since (although all aluminum now) . I did however manage to sell the mishimoto fan to a Mercedes w123 owner who was after a conversion. Win near win:D
 
Ay up Keith, I went back to the viscous, the fans for me felt to much too late as opposed to the viscous being ahead of the game. After the last radiator popped and nearly blinded me I've not had any other rad related issues since (although all aluminum now) . I did however manage to sell the mishimoto fan to a Mercedes w123 owner who was after a conversion. Win near win:D
Stat must have been badly adjusted, no problem with mine in these 40C temperatures and the engine is cooler when idling in queues when the viscous doesn't run very fast.
 
Hit the 200k mark today (passanger took photo)
Snapchat-1825037021.jpg
 
All 6 cylinders at about 300psi. That's a little disappointing. Further investigations planned for tomorrow.

Further testing reveals cylinder 5 is pushing all the coolant out. Stripped a load of stuff off but then one of the studs holding the turbo on sheared off. It would be the tricky f*cker at the back rather than the 2 easy ones. Anyway, had another job I had to do at 5 so packed in for the day. I'll have to take the head off later on in the week and see what horrors await.

Incidentally, an old compression guage has now been modified to attach to an airline to the glow-plug compression-tester adapter. Very useful although even on a slope and chocked with bricks in gear the car does tend to jump forward at you unless you ease the pressure up slowly.
 
Further testing reveals cylinder 5 is pushing all the coolant out. Stripped a load of stuff off but then one of the studs holding the turbo on sheared off. It would be the tricky f*cker at the back rather than the 2 easy ones. Anyway, had another job I had to do at 5 so packed in for the day. I'll have to take the head off later on in the week and see what horrors await.

Incidentally, an old compression guage has now been modified to attach to an airline to the glow-plug compression-tester adapter. Very useful although even on a slope and chocked with bricks in gear the car does tend to jump forward at you unless you ease the pressure up slowly.

Pulled the head. You don't need a hoist. You can stand on the chassis legs and then lift it up onto a towel across the slam panel, get someone to steady it and then when you're back down just lift it down.

Stripped most stuff off except the cam. Need to have a think and think about that first. Also, I need to borrow a window socket for #4 injector.

It looks like #5 might have gone as far as the coolant but there's cracks all over the place. According to the guy who does the pressure -testing the M51 heads always have cracks and the only way to know for sure is to test it. Unfortunately he's goibg away for 2 weeks and he's a one man outfit. Plus he has a waiting list. Might have to try and find someone else.

Edit: I took a photo but need to reduce the size before I can upload it here.
 
Bloody inconsiderate RR drivers. You will not believe what I saw yesterday!
There was a man driving a smart looking P38, 2.5D in green, the same as mine, through Weymouth without a care in the world. The ride height looked good, he was confident enough to have brought his wife with him rather than leaving her somewhere else with a back up car. He must have driven for a mile or more to get there!
The bare faced affrontery!
I wasn’t actually affronted at the time, I was just admiring of a nice well kept RR.
Of course, at that moment I also thought my own was a working drivable RR. It was not until later when I had loaded the boot with all the paraphernalia of a picnic for 4, got 2 friends and our dog in the back seat and tried to rise from access to normal drive height that I discovered I was sadly mistaken!
Bloody Range Rovers - who’d have em?
 

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