| 摘要 |
An improved lubrication circuit for a V-block, cam in block, General Motors type internal combustion engine. The improvement is provided by forming additional oil passages in the V-block between the left side oil passage and some of the cam bearings. The cam bearings corresponding to the new oil passages are rotated to match their oil lubrication ports to the new oil passages to allow lubrication of those bearings by oil supplied by the left side oil passage. The improvement reduces the load requirements of the right side oil passage and increases the oil flow in the left side oil passage. The improvement results in: engine operation at a more balanced temperature; reduced frictional losses; improved high speed lubrication; improved idle speed oil pressure; improved engine life; and improved fuel efficiency.
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