The tappets in Ford's inline six are accessed through a recess cast into the starboard side of the block just above the camshaft. They're located behind a tappet cover that fully encloses them and is hopefully leakproof. Simulated stiffeners on the cover's outside surface are a nice cosmetic touch, and the rear face has a sealing lip around its periphery.
Machining began with the cosmetic detail on the cover's outside face. This was machined into the top surface of a .185" thick aluminum workpiece while clamped in the vise on tall parallels. After band sawing the semi-finished cover free, it was flipped over and temporarily glued to a piece of MDF using a quick setting Devcon Epoxy Gel. The workpiece was indicated with the MDF clamped in the vise while the epoxy cured. After all the machining was finished, the part was released with a half hour bake in a 300F oven.
There's a possibility of interference between the cover and the distributor, and so the lower edge of the cover was relieved just above the distributor's mounting boss. This may have to be revisited after the distributor is machined and its bore in the case is finally drilled.
The cosmetic detail on the front face of the timing cover is another nice touch. Changes were required to the timing cover to accommodate earlier modifications made to the front ends of the block and oil pan for the front ballbearing. Hopefully, oil will find its way into the timing gears through a small hole drilled between them through the front of the block. The front pulley's hub will be grooved for a rotating 0-ring seal to prevent oil from leaking around the shaft. Both covers were bead blasted in preparation for painting. - Terry
Machining began with the cosmetic detail on the cover's outside face. This was machined into the top surface of a .185" thick aluminum workpiece while clamped in the vise on tall parallels. After band sawing the semi-finished cover free, it was flipped over and temporarily glued to a piece of MDF using a quick setting Devcon Epoxy Gel. The workpiece was indicated with the MDF clamped in the vise while the epoxy cured. After all the machining was finished, the part was released with a half hour bake in a 300F oven.
There's a possibility of interference between the cover and the distributor, and so the lower edge of the cover was relieved just above the distributor's mounting boss. This may have to be revisited after the distributor is machined and its bore in the case is finally drilled.
The cosmetic detail on the front face of the timing cover is another nice touch. Changes were required to the timing cover to accommodate earlier modifications made to the front ends of the block and oil pan for the front ballbearing. Hopefully, oil will find its way into the timing gears through a small hole drilled between them through the front of the block. The front pulley's hub will be grooved for a rotating 0-ring seal to prevent oil from leaking around the shaft. Both covers were bead blasted in preparation for painting. - Terry