Tool for attaching valve keys to the valve of the engine

摘要

A tool for attaching valve keys to a valve stem includes an elongated holder with a longitudinal axis, an inner hollow space and an end opening. An elongated core is arranged in the hollow space of the holder coaxially to the longitudinal axis. An elongated recess for receiving a substantial upper portion of the valve stem is provided in the end region of the core coaxially to the longitudinal axis. The recess of the core issues into the end opening and has a depth which is greater than or at least equal to the axial distance between the end and the annular groove of the valve stem. The core at least partially covers the annular groove, such that the valve keys can be supplied to the lateral surface of a valve stem underneath the annular groove and incorrect engagement can be avoided.

主权项

1. A tool for fitting valve keys to a valve of an engine, the engine having a valve stem with an upper end and at least one annular groove for fixing the valve keys, the tool comprising:
an elongate holder with a longitudinal axis, an inner cavity and an end opening through which the upper end of the valve stem can be introduced into a hollow cavity in a holder; an elongate core arranged in the hollow cavity in the holder coaxially with the longitudinal axis and having an end region accessible through the end opening; and at least one transport passage extending in a direction of the longitudinal axis externally on the core and to before the end region of the core for feeding valve keys to a valve, wherein the at least one transport passage is laterally delimited at least partially by a guide jaw arranged moveably relative to the holder and at least partially by the elongate core which is fixed immovably in the hollow space in the holder, and wherein an elongate recess is provided in the end region of the core coaxially with the longitudinal axis for receiving a substantial upper portion of the valve stem, wherein the recess of the core opens into the end opening and is of a depth greater than or at least equal to an axial spacing between the end and the annular groove of the valve stem so that the end region, upon reception of the upper portion of a valve stem, at least partially covers over the at least one annular groove so that the valve keys can be fed beneath the at least one annular groove to a peripheral surface of a valve stem.