Oil level indicating system for internal combustion engine
First Claim
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1. An oil level indicating system for an internal combustion engine, comprising:
- an indicator passageway comprising;
a cylinder block passage extending generally vertically through a cylinder block from an oil pan rail to a cylinder head mating surface;
a cylinder head passage extending generally vertically through a cylinder head from a cylinder block mating surface to a space enclosed by an upper cover, with said cylinder head passage being in registry with said cylinder block passage;
a ported boss extending through an upper engine cover, with said ported boss having a lower end in registry with, and sealingly engaged with, an upper portion of said cylinder head passage; and
an oil level indicator adapted to be extended through said indicator passageway from an upper portion of said ported boss to a location below said oil pan rail.
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Abstract
An oil level indicating system for an internal combustion engine includes an indicator passageway extending through a cylinder block, cylinder head and up through a ported boss extending through an upper engine cover. The ported boss is sealingly engaged with the cylinder head of the engine so as to prevent fugitive oil from entering indicator passageway, thereby preventing erroneous oil level readings.
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Citations
10 Claims
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1. An oil level indicating system for an internal combustion engine, comprising:
an indicator passageway comprising; a cylinder block passage extending generally vertically through a cylinder block from an oil pan rail to a cylinder head mating surface; a cylinder head passage extending generally vertically through a cylinder head from a cylinder block mating surface to a space enclosed by an upper cover, with said cylinder head passage being in registry with said cylinder block passage; a ported boss extending through an upper engine cover, with said ported boss having a lower end in registry with, and sealingly engaged with, an upper portion of said cylinder head passage; and an oil level indicator adapted to be extended through said indicator passageway from an upper portion of said ported boss to a location below said oil pan rail. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An oil level indicating system for an internal combustion engine, comprising:
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an oil level indicator mount comprising a boss extending upwardly from a camshaft cover mounted to a cylinder head, with said boss being formed integrally with said cover, and with said boss having a port allowing passage of an indicator; an indicator passageway comprising; a cylinder block passage extending generally vertically through an integral cylinder block vent stack from an oil pan rail to a cylinder head mating surface; a cylinder head passage extending generally vertically through a cylinder head from a cylinder block mating surface to a space enclosed by said camshaft cover, with said cylinder head passage being in registry with said cylinder block passage and with said port formed in said boss; and an oil level indicator adapted to be extended through said indicator passageway from an upper portion of said boss to a location below said oil pan rail. - View Dependent Claims (8, 9, 10)
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Specification