What is the difference between wet liner and dry liner?
Based on what I know, the wet liner engine has a gap between the cylinders and the engine block for better cooling. The cylinders are also removable and can be replaced instead of the engine being rebored.
Dry liners on the other hand have the cylinders drilled as holes directly through the engine block and in the need of overhaul, the cylinders have to be rebored.
Please correct me if wrong and enrich my knowledge, thanks!
Comments
Wet liner: coolant directly touches the outside of the liner sealing often with o rings, can be replaced with out reboreing cylinders often found in big diesel engines
Dry liner: is alot harder to replace, but it doesnt make direct contact with coolant instead using a interface fit ( liner bigger than hole in block ) to aid with heat transfer. Depending on design can be replaced, the ones i have done you weld the inside of the bore which pulls the liner tighter on itself and with the aid of a strong puller you can get them out, and i used liquid nitrogen to shrink new liner to get it back in