METHOD TO ASSEMBLE AUTOMOTIVE LINER ASSEMBLY Russian patent published in 2010 - IPC F02F7/00 

FIELD: engines and pumps.

SUBSTANCE: invention relates to automotive ICE production, operation and repair. Proposed method consists in the following. Liner to be fitted in engine basic block is preliminary subjected to taper boring at its lower cylindrical part, taper larger base diametre exceeding that of unloaded piston rings and taper top base diametre being equal to liner bore diametre. Note here that taper angle is selected so that, with piston in TDC, piston lower edge does not reach the taper top base. Liner bore surface is lubed with composition reducing friction factor. Then liner is fitted on piston head from above, oriented relative to said bore (liner seat) in engine basic block and slowly moved down unless liner seats as required in its place in block.

EFFECT: replacement of automotive engine liners or piston rings without removing engine from vehicle in operating conditions.

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