Apparatus and method for boring overhead cam engine cylinder hea

Details Apparatus and method for boring overhead cam engine cylinder hea Apparatus and method for boring overhead cam engine cylinder hea

1994-09-06

1997-08-12

Briggs, William R.

Metal working

Plural diverse manufacturing apparatus including means for...

Binding or covering and cutting

82117, 408 54, 408 75, 409227, B23P 2300

Patent

active

056552785

ABSTRACT:
A method and machine for repairing overhead cam engine cylinder heads and the like. The method includes the steps of removing the caps from the bases of the bearing towers or housings, removing material from the legs of the caps to reduce their height, replacing the caps on the bases, and boring the resulting bearings to produce bearings of the proper diameter. The machine includes a device for machining a bearing cap and a device for boring the bearings. The device for boring the bearings has a boring bar that is supported only at opposite ends of the cylinder head. The bar does not sag or chatter because it is made of an extremely hard and dense material such as a dense tungsten alloy or a ceramic-coated metal.

REFERENCES:
patent: 1608659 (1926-11-01), Jensen
patent: 4132494 (1979-01-01), Aldridge, Jr.
patent: 4657446 (1987-04-01), Flaten
patent: 4730958 (1988-03-01), Banoczky
patent: 5209615 (1993-05-01), Davis
patent: 5221165 (1993-06-01), Goszczynski
patent: 5403146 (1995-04-01), Jones
Berco -1994 Product Catalog.
Sunnen Products Co. -1994 Product Brochure.
Serv-Equip, Inc. -Ad in Summer 1994 "Engine Rebuilder Trader" Magazine, p. 81.
Dura-Bond -- Performance Racing Industry, Sep. 1994.
Acu-Bore -- 1994 Product Brochure.

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