Melted Block And Head

[Andrewpv01]

The bottom radiator hose blew on my 95 Disco a couple of months ago.

I haven't been able to get it to run right since then so I decided to pull the heads while I am on holidays.

It had no power or acceleration.

This is what I found when I pulled off the passenger side head.

Has anybody seen this before? Obviously the head gasket was gone between the cylinders, but the block and head melting like this?

[discowhite]

WOW! thats a pretty piece of FUBAR you have there:eek:

how long did you say you drove it after cooking it??

cheers phil

[blitz]

depressingly yes I have on my old 3.5lt 79 2door rangie, aluminium doesn't like to be over heated it's possible that the engine is buggered sorry to say - hope not for you sake

Check your heads with a straight edge to see if they have warped as well

[Scouse]

Check your heads with a straight edge to see if they have warped as wellNo need for that - see pic #3 :(

[Tank]

This is what happens when a blown head gasket is not replaced and the car is driven without repair, this damage is not from the hose blowing, it takes a while to erode away a head and block like this, the bottom radiator hose was a sign that the head gasket was blown, same thing can happen on a cast iron block and head, looks like a new head and block will be needed, Regards Frank.

[Andrewpv01]

It will need a new head/s and block.

The car just seems to sit there most of the time now because I use the work car all the time.

I have to decide now whether to repair it or wreck it.

Any interest in a stroker crank with a stuffed block?:D

Andrew

[bee utey]

One of my customers did that. She had a split coolant tank and it took less that 5 minutes up the SE freeway in Adelaide to do similar damage. I happened to be driving in the opposite direction and saw a huge cloud of smoke arrow down on a blue D1 on the uptrack. Less than a minute later came a phone call: "my car's stopped, can you get it running again please?"

Needless to say your engine block and heads are scrap, just like hers.:(

[PhilipA]

Its more common AFAIK between the combustion chamber and valley and I did one like that in Saudi Arabia.
Luckily the channel was only 3or 4 thou deep so it could be machined out.

BUT WOW you really did it well!
Regard sPhilip A

[Tank]

One of my customers did that. She had a split coolant tank and it took less that 5 minutes up the SE freeway in Adelaide to do similar damage. I happened to be driving in the opposite direction and saw a huge cloud of smoke arrow down on a blue D1 on the uptrack. Less than a minute later came a phone call: "my car's stopped, can you get it running again please?"

Needless to say your engine block and heads are scrap, just like hers.:(
There's no way that a gouge that deep in both head and block happened within five minutes, the gasket on Andrews has been gone for some time to cause that amount of damage, Regards Frank.

[bee utey]

There's no way that a gouge that deep in both head and block happened within five minutes, the gasket on Andrews has been gone for some time to cause that amount of damage, Regards Frank.
Maybe 10 minutes then. It got so hot it was melting piston skirts too. It certainly was running well at the bottom of the hill.

[d@rk51d3]

Unless it had a pre-existing condition, due to previous heat-ups.

Sounds like something my missus would do.:(

Me: "Did you know the Alternator light is coming on in the car now?"

Her: " Yeah, it's been like that for a few weeks now..........." :eek::(:mad:

[blitz]

the bottom hose on my rangie blew with the old man driving it - yeah I heard something boy, I wondered what it was??????

totalled after he kept friving for about 10 minutes total and utter melt down

[Andrewpv01]

Not sure how long I was driving it after the hose blew. I smelled coolant and pulled over - the motor was still running OK.

If it wasn't that then the last overheating issue I had was almost 4 years ago. There was definitely no missing after that - have had LPG fitted since then and no mention of problems.

Andrew

[Blknight.aus]

I've heard of cases of less than 10 minutes on a blown hose doing that damage but the blown hose was the symptom not the cause.

The engine had been over heating and cooking the cooling system via a dead headgasket for ages but a leaking expansion cap, low speed short driving were masking the symptoms. Untill it was taken out and given a thrash on a highway. The cooling system couldnt cope blew the hose off and it was driven till it stopped one melty head, block and piston later.

[blitz]

I've heard of cases of less than 10 minutes on a blown hose doing that damage but the blown hose was the symptom not the cause.

The engine had been over heating and cooking the cooling system via a dead headgasket for ages but a leaking expansion cap, low speed short driving were masking the symptoms. Untill it was taken out and given a thrash on a highway. The cooling system couldnt cope blew the hose off and it was driven till it stopped one melty head, block and piston later.

That sounds like what happened to my rangie dad was towing a huge trailer 3000km south at the time it went - ulitmately my fault for not ensuring it was up to the task

[Disco44]

When my head gasket went the engine management system kept shutting down the motor .When it cooled I started it drove it to a safe place off the motorway then had it taken to be fixed.All I needed was for the head to be shaved and a new gasket fitted.That was yonks ago and still going fine after fitting the new steel gasket.