Gas tight seal between cylinder head and cylinder block - head has anular projections each side of fixing bolt at mating face

摘要

The cylinder head fixing bolts (11) are parallel to the liner cylindrical axis and each bolt is screwed between two supports of equal strength to avoid distortion of the liner (4). The supports may be formed from the highest point of the liner collar (6, 7) on the engine block side. The supports on the cylinder head slide may take the form of a first projecting annular ring (18) corresponding to the liner collar and a second projection (16) forming a step on the opposite side of the fixing bolt. A gasket of equal thickness is used.