B23B2215/24

APPARATUS, SYSTEMS, & METHODS FOR ENGINE DOWEL INSTALLATION

A drill jig apparatus configured to be coupled to a locomotive bedplate is presented. The apparatus can include a first member and a second member. The first member can be configured to attach a drill to provide stability while drilling, and the second member can be operably coupled to a locomotive, such as to an engine and bedplate of a locomotive. An engine dowel drilling system is also presented, which can include a drill jig member and a bushing member, and the members can be operably coupled with one another. A method of drilling holes in a locomotive bedplate can include using a drill jig and a bushing to facilitate drilling, and the drill jig can be a conductor-side jig or an engineer-side jig. A kit is also presented for engine dowel installation that can standardize dowels and dowel holes.

Broken bolt removal template for cylinder head
12466010 · 2025-11-11 · ·

Embodiments of the apparatus relate to a template used to assist in the removal of broken bolts from an intake manifold mounting fasteners. The apparatus includes a template having a plurality of apertures. When the template is used with a cylinder head, one or more of the apertures is designated as an insertion aperture and one or more of the apertures is designated as a connection apertures. Insertion apertures align with bolt holes of the cylinder head containing broken bolts, and connection apertures align with empty bolt holes of the cylinder head that may be used to secure the template to the cylinder head. The template is used to guide a drill bit or other tools through the insertion apertures as the drill bit or other tool performs work to remove a broken bolt within the cylinder head.