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Engine Boring Fixture
Method and apparatus for mounting an engine block boring machine
| U.S. Patent |
4,234,275 |
| Filing Date |
July 26, 1978 |
| Issue Date |
November 18, 1980 |
| Inventor |
Michael H. Clement |
Abstract
A method and apparatus for positioning a boring machine relative to an engine block or the like has a base plate suitable for arrangement upon a deck surface of the block, the plate being formed with openings above each of the cylindrical bores as well as in alignment with threaded passages in the block.
Preferably, bolts are threaded into the block to secure the base plate so that, during reboring, the bolts distort the block about the bores in a similar manner as during engine operation.
Also preferably, adjustable means are arranged between the base plate and the deck surface of the engine block in order to position the base plate in precise alignment with the main bearing axis of the engine block so that the bores are formed perpendicularly to the main bearing axis.
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| United States Patent 4,234,275 |
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