factory linered S block

[mniwagn]

So I have a factory linered S block at std. never used. It's an original gold seal from 1973. Should I be concerned the way its linered as it's bored all the way through with no step at the bottom. Do these liners ever come loose and destroy an engine? thanks

[Simon776]

Many blocks were linered from new so I wouldn't be too concerned.

[mniwagn]

do the liners move very often?

[Simon776]

Normally just once!

[36inter]

Downwards.......

[mniwagn]

does this do any damage other than loosing compression? would a sleeve ever move so far as to hit the crank? thanks

[bmcman.ie]

i would imagine that apart from piston and rod destruction, possible crank damage, a cracked block would also be a possibility!

[Smiffy]

Weld 'em in they won't move then.

[ivor badger]

i would imagine that apart from piston and rod destruction, possible crank damage, a cracked block would also be a possibility!

Which is exactly what happened to a friends 1098 clubman which had a linered block from new. Although the car was out of warranty, they did make a payment towards the repair on the basis that the car was not correct, but was a bodge from the factory. It of course helps if your mother is a lawyers secetary.

[Pandora]

A daft question, maybe, but why are some linered and some not?

is it to address inconsistencies in the castings, that some break through when machined?

[251 ENG]

Factory linered blocks are done to rectify bad castings or to reclaim blocks that have been bored too big .

Also factory reconditioned / goldseal sometimes had liners.

I,ve seen a few blocks with moved liners , I allways step them in with about 0.002" - 0.003" press fit .

If your block has liners now you will have to fit bigger ones

[Vegard]

i would imagine that apart from piston and rod destruction, possible crank damage, a cracked block would also be a possibility!

Which is exactly what happened to a friends 1098 clubman which had a linered block from new. Although the car was out of warranty, they did make a payment towards the repair on the basis that the car was not correct, but was a bodge from the factory. It of course helps if your mother is a lawyers secetary.

Wouldn't it help if your mother is a lawyer?