Bulletin 67-20: 1600cc Cylinder Blocks

NUMBER: 67-20 DATE: Feb. 7, 1967 GROUP: Engine SUBGROUP: Cylinder Blocks MODELS: All Models Equipped With 1600cc Engines SUBJECT: 1600cc Cylinder Blocks All replacement 1600 cc. cylinder blocks will have the crankshaft main bearing bores the same diameter as the 1725 cc. units. When fitting crankshafts and replacement bearings to these cylinder blocks (Part No. (more…)

Bulletin 66-6: 1725cc Oil Pressure Relief Valve Change

NUMBER: 66-6DATE: Sept. 26, 1966GROUP: EngineSUBGROUP: Oil Pressure Relive Valve MODELS: All Models Equipped With 1725cc Engine SUBJECT: Oil Pressure Relief Valve Change Some reports of early bearing failure and/or intermittent low oil pressure have been received. If this condition is encountered, it is recommended that the oil pressure relief valve part no. 5043949 be (more…)

Bulletin 66-4: 1725cc Crankshaft End Play

NUMBER: 66-4 DATE: July 26, 1966 GROUP: Engine SUBGROUP: Crankshaft End Play MODELS: Alpine V; Hillman Minx VI; Super Minx IV; Humber Sceptre II; Sunbeam Rapier V; Singer Gazelle VI; Singer Vogue IV SUBJECT: Crankshaft End Play – 1725cc Engine Recent reports received from the field indicate excessive crankshaft end play in the 1725 c.c. (more…)