A rocker box, pushrod assembly, oil delivery system, tappets and tappet guides are provided for an engine, particularly a shovelhead motorcycle engine. The rocker box includes a separable upper portion and lower portion with a seal for sealing the upper portion and lower portion when coupled togethe
A rocker box, pushrod assembly, oil delivery system, tappets and tappet guides are provided for an engine, particularly a shovelhead motorcycle engine. The rocker box includes a separable upper portion and lower portion with a seal for sealing the upper portion and lower portion when coupled together. The pushrod assembly includes an adjusting unit that collapses into a pushrod shaft. The oil delivery system includes an oil passageway(s) in a rocker shaft of a rocker arm assembly, and at least one of an oil passageway(s) in a rocker box and an oil passageway(s) in a pushrod assembly.
대표청구항▼
What is claimed is: 1. An oil delivery system for delivering oil to rocker arms in a motorcycle engine, comprising: a first oil line for supplying oil to a first rocker box; a first oil passageway formed within a wall of the first rocker box for distributing oil from the first oil line to rocker sh
What is claimed is: 1. An oil delivery system for delivering oil to rocker arms in a motorcycle engine, comprising: a first oil line for supplying oil to a first rocker box; a first oil passageway formed within a wall of the first rocker box for distributing oil from the first oil line to rocker shafts on which at least two rocker arms are operably supported within the first rocker box; and wherein each rocker arm includes a second oil passageway extending along an associated one of the rocker shafts for distributing oil from the first oil passageway along a length of each rocker arm. 2. The oil delivery system of claim 1, further comprising a third oil passageway formed within a first pushrod assembly for distributing oil to one of the at least two rocker arms positioned within the first rocker box. 3. The oil delivery system of claim 1, further comprising a second oil line for supplying oil from the first rocker box to a second rocker box. 4. The oil delivery system of claim 1, wherein oil enters each rocker arm via plugs coupled to ends of the at least two rocker shafts. 5. A motorcycle engine including the oil delivery system of claim 1. 6. A motorcycle including the motorcycle engine of claim 5. 7. The oil delivery system of claim 1, further comprising a third oil passageway formed within the rocker arm for distributing oil from the second oil passageway to a ball socket portion of the rocker arm. 8. The oil delivery system of claim 7, further comprising a fourth oil passageway formed within the rocker arm for distributing oil from the second oil passageway to a rocker roller tip portion of the rocker arm. 9. The oil delivery system of claim 1, further comprising a third oil passageway formed within the rocker arm for distributing oil from the second oil passageway to a rocker roller tip portion of the rocker arm. 10. A motorcycle engine comprising: a crankcase with at least one cylinder: a cylinder head assembly mounted on the crankcase: a rocker box mounted on the cylinder head, the rocker box including at least two rocker arms and a rocker shaft supporting each of the at least two rocker arms; and means for delivering oil to a tip of each of the at least two rocker arms, including a first oil passageway extending longitudinally along the rocker shaft and a second oil passageway connected to the first oil passageway and extending therefrom to the tip of the each rocker arm, the second oil passageway being formed within a section of material in each rocker arm that extends to and forms part of the tip. 11. The motorcycle engine of claim 10, further comprising means for supporting the at least two rocker arms within the rocker box. 12. The motorcycle engine of claim 11, further comprising means for actuating the at least two rocker arms. 13. A motorcycle engine including the oil delivery system of claim 10. 14. A motorcycle including the motorcycle engine of claim 13. 15. The motcrcycle engine, comprising: a crankcase with at least one cylinder: a cylinder head assembly mounted on the crankcase: a rocker box mounted on the cylinder head, the rocker box including upper and lower portions sealingly attached together using at least one seal, and including at least two rocker arms; and means for supporting the at least two rocker arms within the rocker box, the means including a rocker shaft for supporting the at least two rocker arms; the rocker box, the rocker shaft, and each rocker arm each having material defining portions of a continuous oil passageway from an outer surface of the rocker box to a location near a tip of the rocker arms. 16. The motorcycle engine of claim 15, further comprising means for actuating the at least two rocker arms. 17. A method of delivering oil to rocker arms in a motorcycle engine, comprising: supplying oil to a first rocker box; distributing oil to at least two rocker arms positioned within the first rocker box; including distributing oil along a rocker shaft of each rocker arm, and including distributing oil through an oil passageway in each rocker arm directly to location near a tip of each rocker arm, the oil passageway being defined by a section of material of each rocker arm that extends from the rocker shaft to the respective tip. 18. The method of claim 17, wherein supplying oil to a first rocker box comprises supplying oil via a first oil line external to the motorcycle engine. 19. The method of claim 17, wherein supplying oil to a first rocker box comprises supplying oil via an oil passageway in a pushrod assembly. 20. The method of claim 17, further comprising distributing oil to at least one of a rocker roller tip portion of each rocker arm and a ball socket portion of each rocker arm.
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