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A rocker cover, (UK), or valve cover (elsewhere) is a cover that encloses the rocker arm in an internal combustion engine, bolting with a gasket seal to the engine head. Engines with more than one head (such as a V8 ) will have multiple rocker covers.
Valve covers were die-cast magnesium (AZ91D alloy), rather than stamped steel; this lowered noise levels and made for better gasket sealing. [ citation needed ] The Magnum V10 first became available in the 1994 model year Dodge Ram 2500 and 3500 (above 8,500 pounds GVWR), [ citation needed ] and was the most powerful gasoline-burning engine ...
Changes to the valve covers were also made. Ribbing was added to the top of the valve covers to increase surface area, acting as a heat sink. To improve intake gasket sealing, the mounting bolts were relocated to the valve cover centerline, placing all sealing pressure evenly upon the mounting flange perimeter.
Head gasket with a leak between the rightmost and centre cylinders. A leak in the head gasket - often called a "blown head gasket" - can result in a leak of coolant, the combustion gasses, or both. Blue smoke from the exhaust suggests that excess oil is entering the combustion chambers (although there are other possible causes than a head ...
The fundamental concept underlying the improved sealability for constant seating stress gaskets are that (i) if the flange sealing surfaces are capable of attaining a seal, (ii) the sealing elements are compatible with the process fluid and application, and (iii) the sufficient gasket seating stress is achieved on installation necessary to ...
An early problem with the fan drive-belt jumping off the pulleys was solved by making the groove in the idler pulley deeper and adding belt guides. A metal bellows thermostat modulated either a ring valve on early engines or a set of damper doors on later ones to regulate the flow of cooling air. [5]: 40 Engine oil is also used as a coolant.
A bride’s sister-in-law was put in an uncomfortable position after the bride insisted that the woman cover her tattoos with foundation — and she ultimately refused. In a Reddit post, the 25 ...
A camshaft with 301/313 degrees of advertised duration, 0.407-inch (10.3 mm) net valve lift, and 76 degrees of valve overlap was specified for actual production engines in lieu of the significantly more aggressive Ram Air IV-spec camshaft that had originally been planned for the engine (initially rated at 310 hp (231 kW) with that cam), but ...