Metal working – Method of mechanical manufacture – Prime mover or fluid pump making
Patent
1987-12-31
1990-11-06
Arnold, Bruce Y.
Metal working
Method of mechanical manufacture
Prime mover or fluid pump making
2940207, 295264, 228119, B23P 1500, B23P 600, B23K 3100
Patent
active
049674587
ABSTRACT:
A process for renewing a cylinder head, preferably a cast aluminum water cooled cylinder head from a used condition to a rebuilt condition suitable for reuse. In a qualifying stage the used cylinder head is stripped of removable parts, inspected, heat treated for cleaning and stress relieving purposes, and then pressure tested to detect leaks through cracks or excessive porosity. If cracks are located, the cylinder head passes through a reconstruction stage wherein cracked areas are removed and replaced by welded material, recontoured and preferably again pressure tested. A cylinder head which did not need reconstruction (or after reconstruction) then passes to the rebuilding stage where it is essentially machined and component parts replaced. Included in the rebuilding stage is a line-boring and surface gasket facing procedure for eliminating the adverse effects of warpage and a vacuum impregnation step to seal the pores of the cylinder head.
REFERENCES:
patent: 2632944 (1953-03-01), Kittelson
patent: 3192618 (1965-07-01), Altgelt
patent: 3392435 (1968-07-01), Swick et al.
patent: 3675309 (1972-07-01), Borkoski
patent: 4364159 (1982-12-01), Holcombe
Saving Aluminum Heads, by Larry Carley, Automotive Rebuilder, Sep. 1986, pp. 30-34, 37-39.
Flat Out, by John Decker, Motor, Apr. 1986, pp. 55, 59-62.
Straight Heads-Magic Is Not Needed, by Gary Lewis & Dimitri Elgin, Automotive Rebuilder, Nov. 1985, pp. 24-26, 28, 30-31.
Welding Techniques, Part Two, by Jerry Heasley, Motor, Oct. 1984, pp. 42, 44-46.
How To Do The Impossible, by Vern Heinrich & Mike Pankratz, Renews, Mar. 1987, pp. 18-19, 40-42.
Escort Heads-Making Repairs, by Jim Hughes, Automotive Rebuilder, Dec. 1987, pp. 26-28, 30-32, 34-35.
English Raymond
Rosenberg Eugene
Sanders Jay
Arnold Bruce Y.
Automotive Aftermarket Development Corporation
Kachmarik Ronald M.
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