Kits for replacement of thermostatic valve assemblies

摘要

A kit for removing and replacing in a housing (14) a thermostatic valve assembly (2) for an internal combustion engine comprises a replacement thermostatic valve assembly (2) and a tool. The thermostatic valve assembly (2) comprises a valve closure member (16), mounting means (22) for releasably holding the assembly in the housing (14) and spring means (20) acting along an axis between the closure member (16) and the mounting means (22). The mounting means (22) has at least two arms with abutment members for releasably engaging corresponding abutments (28) of the housing (14) by both axial and rotational movement relative to the axis of the spring means (20). Thermostatic valve assembly also includes a temperature responsive unit (4) connected to the valve closure member (16) to move it in response to an increase in temperature. The mounting means (22) are freely movable against the spring means (22) to release and engage the arms with the abutments (28) of the housing (14). The tool (46) for removing one thermostatic valve assembly (2) from the housing (14) and replacing a replacement thermostatic valve assembly (2) comprises a holding portion which in use is held by the user and engagement means arranged at an end region of the tool. The engagement means are arranged to engage the mounting means (22) of a thermostatic valve assembly (2) and permit axial and rotational movement of the tool and the mounting means (22) relative to the assembly (2) against the bias of the spring means (20) thereof, to locate the replacement assembly (2) in the housing with the mounting (22) in engagement with said abutments.