[stevesal]

Fortunately not my truck, but an almost identical 4.0 litre 2001 Australian delivered machine last week stopped by the road side following an instantaneous ramp up in temperature. Was taken on a flat bed to a specialist who diagnosed cracked block based on no compression in all 8 cylinders.

This is a surprise to me, along with owner being told it is a common occurrence approaching 200km (about 120k miles).

I was wondering if in its history history it had a bad cooking and/or was dumped into a deep water crossing with a hot motor.

It seems really strange to loose all 8 cylinders given engine configuration.

In any case, this forum is my go to place for gurus, so anyone seen or heard of anything like this ?

By the way the specialist is going to buy the truck off him for what I would have thought is a pretty generous sum, so this has me a tad suspicious!!

Comments welcome

Thanks

 

[mad as]

if it has no compression it will turn over very easily by hand

 

[Gordonjcp]

Sounds like he's telling wee stories there... I can't see any possible way to lose compression in all eight cylinders without actually removing the cylinder heads.

 

[Imonlyaguest]

Even if the cam chain had snapped there would be at least one cylinder with both valves closed and giving compression. No, blocks do not crack after 120k miles, blocks do not crack at all unless something else happens to cause it and even if they did, there would still be compression on 6 or 7 cylinders. They don't have built in obsolescence.

 

[chris no 10]

I think he needs to buy a new compression tester

 

[Lonn]

He needs to find a new "specialist" because that one doesn't know what he's doing, or he's trying to pull a fast one on the owner.

 

[JohnnoK]

He needs to find a new "specialist" because that one doesn't know what he's doing, or he's trying to pull a fast one on the owner.

Yup, I am with you on this one.
Sounds decidedly suspect to me.