Abstract: A manifold of an engine has a liner, a housing and an insulating element covering and extending about the liner between the liner and the housing. The external surface of the housing is free of insulating elements. The insulating element is quilted and has ceramic fiber encased within fiberglass.

Abstract: The invention relates to a prelubrication system for an engine. It is desirable to prelubricate relatively large engines to prevent possible damage of certain components such as the crankshaft and camshaft bearings. Engines that must be started in a matter of seconds are provided with prelube pumps that run continually. During long periods of continuous prelube lubrication fluid being pumped upward into the upper rocker arm area may find its way into combustion chambers and result in damage of engine components. The present system provides a fluid level control device that prevents lubrication fluid from reaching the upper rocker arm area of the engine when the engine is not running and disables the control device when the engine is running allowing the supply of lubricant to reach the upper rocker arm area.

Abstract: A bolt retainer (10,110) for holding bolts (22,23,122,123) against rotation consists of a flat plate (12,112) having two or more bolt holes (18,20,118,120) therethrough and an upstanding portion (14,114). Specifically configured bolts (22,32,122,132) have surfaces (28,128) that abut the upstanding portion (4,114) thereby preventing rotation of the bolts (22,32,122,132) upon applying a nut (46) thereto.