21-05-2012, 04:31 PM
Because they're cast iron, the actual block material is fine to be used as a liner... So there's no "liner" as such, it's just a block with some holes in that happen to be useful for bores and the material is good, so you don't need a different material as a liner...
Makes them stronger between the bores and easier to machine - better for dealing with massive heat fluctuations, but much, much heavier and not as easy to get heat out of, but once you've machined them so much, the gap between the bores gets too small - whereas you can just replace your liners and carry on.
Diesels very rarely have liners because of the high sudden heat and pressure, which liners don't like, there is one - the PSA 1.4 N/A Diesel, hence it's terrible for popping gaskets and blowing liners and seals...
Makes them stronger between the bores and easier to machine - better for dealing with massive heat fluctuations, but much, much heavier and not as easy to get heat out of, but once you've machined them so much, the gap between the bores gets too small - whereas you can just replace your liners and carry on.
Diesels very rarely have liners because of the high sudden heat and pressure, which liners don't like, there is one - the PSA 1.4 N/A Diesel, hence it's terrible for popping gaskets and blowing liners and seals...
