Title: Test apparatus for engine heads

Abstract: Apparatus for testing engine heads of internal combustion engines of various sizes for fluid tightness of internal cavities in a head which commmunicate with ports in the fire deck surface of the head. A universal mounting frame for a cylinder head is rotatable on a longitudinal pivot axis to position the head with its fire deck surface at any orientation relative to the axis. Longitudinal support rails are positioned above the water ports, and spring loaded stopper means and fluid supply and venting members which are longitudinally adjustable on the rails are aligned with the ports, and the support rails are then moved down to seal the stoppers and heads against the rims of the ports. Compressed air, and then hot water are introduced to the head cavities to check it for leaks.

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Inventors: Durgan, Virgil R. C. (Tremont, IL, US)
Palma, Milton J. (Pekin, IL, US)

Application Number: 595649
Filing Date: 1975-07-14
Publication_date: 1976-08-10
Assignee: Caterpillar Tractor Co. (Peoria, IL)
Primary Class(es): 73/49.7
Other Classes:
US Patent Ref:

3360984	Jan, 1968	Salsbury	73/49.
3452591	Jul, 1969	Phillips et al.	73/118.
3608369	Sep, 1971	Wilkinson	73/49.

Other Refs:
Primary Examiner: Myracle, Jerry W.
Assistant Examiner:
Attorney: Wegner, Stellman, McCord, Wiles & Wood