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

1996-09-16

1998-11-17

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Processes

Bit detachable

408 54, 408 80, 408127, 408233, 408708, B23B 4100

Patent

active

058367250

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:
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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, Sept. 1994.
Acu-Bore -1994 Product Brochure.
Newen Genesys OHC Cylinder Head & Block Line Boring Machine -1995 Product Brocure.

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