IamRobbie

IamRobbie

Well-Known Member
After changing the head and gasket on my disco 200tdi it's breathing rather heavy still... It's been sat on the drive for a about 6 months doing nothing and today I finally got it ready to go out. Did about 10 miles and the temp guage suddenly shot up to red so i turned it off.....

It had been breathing hard through the engine breather whilst driving so i can only assume that for some reason it's burning or leaking past on the headgasket??

I filled it up with 8 litre of water and drove to tesco for more (around the corner)

Filled it some more at tesco and loaded up with more bottles of water and had a steady drive home... About half a mile from home temp guage jumped up again. And I pulled over and turned her off, this time it had blown the bottom pipe off the water pump, strange.

I'm pretty lost with it at the minute all I can seem to think is fix it with another engine....
 
IamRobbie said:
After changing the head and gasket on my disco 200tdi it's breathing rather heavy still... It's been sat on the drive for a about 6 months doing nothing and today I finally got it ready to go out. Did about 10 miles and the temp guage suddenly shot up to red so i turned it off.....

It had been breathing hard through the engine breather whilst driving so i can only assume that for some reason it's burning or leaking past on the headgasket??

I filled it up with 8 litre of water and drove to tesco for more (around the corner)

Filled it some more at tesco and loaded up with more bottles of water and had a steady drive home... About half a mile from home temp guage jumped up again. And I pulled over and turned her off, this time it had blown the bottom pipe off the water pump, strange.

I'm pretty lost with it at the minute all I can seem to think is fix it with another engine....
Click to expand...
maybe a couple of issues

you use a quality gasket? check for any cracks?

you check rings/wear when the head was off?

i'm not clear, did you lose water when out and then had to fill it up with 8 lts before tescos?
 
Bores looked fine all 3 times I had the head off. First time I did headgasket it started huffing. So I redid the headgasket with a decent brand AND another head from top-cat, however one of the new bolts snapped. Bolt number 6 (manifold side)

So i took the head off for a third time and replaced with another branded gasket.

The only thing I can think of is that bolt number 6 when refitting didn't feel like I had to pull on it as hard as the rest, to get to 60 degrees..


I had to fill with 8 litres of water after 10-15 miles. I then drove not even half a mile for more water..


Also noticed when temp guage runs into red so quickly the truck won't start until I've filled with water.
 
Would a pressure test show anything other than HG failure?

Im thinking that if i dont manage to get this fixed soon I'm just gonna sit her at the bottom of the garden until I get a garage built in a couple of years..
 
I think you need to be more specific with the details.
If I understood your first post you drove it with not enough water in it initially?
Than you bought some water and filled it up yes? if so how low was the water when you got home?
When its idling what happens to the oil filler cap if you remove it?
 
sounds like head off time again.

this time take lots of good pics of the gasket, head and bores, check your rings when at it and check straightness/crack test of head. oh and check that bolt thread isn't stripped

hopefully you'll see some staining or a clean piston

get elring and not a mls one
 
†

It was full to start, it was empty when I pulled over to fill it up (as the temp gauge went red)

filled it up with 8-10 litre and drove home, got half a mile away from home and it blew the bottom pipe off..
put another 8 litre in and drove the rest home.

Would it be better to speak to you on the phone? maybe to help explain, if so give me a pm ill send you my number..

I think head off again and i think bolt number 6 is fooked and it needs rethreading or redrilling bigger...
 
who
IamRobbie said:
†

It was full to start, it was empty when I pulled over to fill it up (as the temp gauge went red)

filled it up with 8-10 litre and drove home, got half a mile away from home and it blew the bottom pipe off..
put another 8 litre in and drove the rest home.

Would it be better to speak to you on the phone? maybe to help explain, if so give me a pm ill send you my number..

I think head off again and i think bolt number 6 is fooked and it needs rethreading or redrilling bigger...
Click to expand...
who me? nah do it on the forum, then others can give ideas.

so where is all the water going?

with that much being lost were you not doing a james bond smokescreen out the back?
 
No James bond smoke screen behind. It Has a boost pin and the pumps tuned so it smokes alot anyway, however no white smoke.

It is definitely coming out of the engine breather just like boiling a kettle constantly.

The head I took off I will take to have it pressure tested and skimmed.

Could it be a cracked block at all??

What do I do if bolt hole number 6 has stripped threads?
 
Lynall I will turn the truck on tonight and check the oil filler cap tonight and get back to you, I apologise I missed that question.
 
IamRobbie said:
No James bond smoke screen behind. It Has a boost pin and the pumps tuned so it smokes alot anyway, however no white smoke.

It is definitely coming out of the engine breather just like boiling a kettle constantly.

The head I took off I will take to have it pressure tested and skimmed.

Could it be a cracked block at all??

What do I do if bolt hole number 6 has stripped threads?
Click to expand...
helicoil

did you say you used a non mls gasket (metal one) elring? because it doesn't sound like the hg, unless you have a crack. either way with the head off it should be easy to tell. look for the clean bit.

also check your oil, it's probably knackered and could cause issues if you try to start it again
 
I doubt it's the head .. I'd guess at a crack in the casing somewhere, maybe in a piston bore, 'cos if it's venting at pressure then it's pressurising somehow .. maybe as simple as worn pistons/rings.
 
Paul D said:
I doubt it's the head .. I'd guess at a crack in the casing somewhere, maybe in a piston bore, 'cos if it's venting at pressure then it's pressurising somehow .. maybe as simple as worn pistons/rings.
Click to expand...
he's saying it's steam though and losing a load of water.

i'm thinking maybe 2 issues? worn rings and bad gasket/head
 
It didn't breath at all until I removed the head the first time on a wild goose chase to find leaking water. Turned out to be the rad in the end but now its like watching steam come out the top of a kettle.
 
I used an elring gasket I think. The only metal it had on it was around the piston holes. I'll check the oil for any water.
 
IamRobbie said:
It didn't breath at all until I removed the head the first time on a wild goose chase to find leaking water. Turned out to be the rad in the end but now its like watching steam come out the top of a kettle.
Click to expand...
oh right.

if that bolt is iffy, and not causing the hg to clamp down.. leaking coolant, then it'll need coiled/fixed.

i'd be tempted to take it out, look for swarf and re torque it back up. see if it holds tight this time.

confirm how you tightened them all
 
Took a quick video then put my phone down and it didn't save. It doesn't puff when it first starts, it gets worse the warmer the engine..

I noticed a slight drip from the top rad pipe, not enough to lose around a litre per mile or 2.


Slight white smoke on little throttle but pure black on anything more as shown near the end. This video is after the truck has been on for around a minute only.

 
I tightened them in sequence, it did go down tight but I felt that it wasn't pulling as hard as the rest when torquing down. I did it to 30nm I think then 60 degrees then another 60 degrees
 
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