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As we know our (4.0/4.6 940mm bore) blocks have a 'reputation' for slipped liners, and/or liners with coolant leaks - and I would (currently) 'best guess' this at maybe 1% of blocks (?)

However the question is, for those it has actually happened to, do you actually know which liner/s slipped ??
 
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Some suitable collated 'background reading material':-

http://robisonservice.blogspot.co.uk/2010/04/last-word-on-land-rover-liner-failures.html

http://www.v8developments.co.uk/ > Technical > Liners


Suitable related 'watching material':-


http://www.youtube.com/watch?v=t-NrrCpHhP8

http://www.youtube.com/watch?v=qmVI1...eature=related

Similarly the later, Disco V8, story:-

http://www.youtube.com/watch?v=d6G1O...feature=relmfu

http://www.youtube.com/watch?v=7fRDR...eature=related


linked to:-

http://www.discoweb.org/forums/showthread.php?t=74254
 

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As we know our (4.0/4.6 940mm bore) blocks have a 'reputation' for slipped liners, and/or liners with coolant leaks - and I would (currently) 'best guess' this at maybe 1% of blocks (?)

However the question is, for those it has actually happened to, do you actually know which liner/s slipped ??
I'll go first:

4.6 Thor, 110,000 miles, bought (cheap) as overheated, pressurisng coolant and dumping coolant.
Found and replaced knackered pump (vanes gone), but issue continued. Hyrdrocarbons in coolant. ticking on a cylinder. decided to strip down to check.

found cyl 6 not looking good:



head gasket had a ridge in the fire ring - thought to be where liner was moving (and ticking?), but not that eay to see in the pic (cylinder on right of pic).



and a close up of a crack/gap between liner and block:



dropped a tophat liner'd short block from Turner, and been fine since:

 
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Discussion Starter #5
Thanks for the interesting input, info and photos logrover !!

As expected it was indeed one of the 'inner' (engine core) cylinders, too,
but it looks like the liner had only moved/slipped a couple of thou..(?)..
plenty enough though for water/pressure to find an outlet for sure !!

Any close-up photos of the 'tophatted block etc ?
 
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