EGR Blockoff Plates

[ngoma]

D24T EGR system offers little benefit of its intended purpose. Needlessly (electromechanically) complex, bunglesome, and generally in the way. After removing the wiring and microswitches, I wanted to further streamline the area by removing the plumbing and installing blockoff plates on the intake and exhaust manifolds.

While making a recycle run at the scrapyard, saw a nice 1/2" thick aluminum plate, looked like it was a emergency snap shut cover for a lab sink.

After removing the EGR plumbing and mounting flanges, the gaskets appeared to be in satisfactory condition for reuse. I used one as a pattern template to cut the plates out of the sheet with a jigsaw.

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I had thought that possibly the different coefficients of expansion between the cast iron exhaust manifold and aluminum blockoff plate would cause sealing problems or excessive gasket wear but it seems to be holding tight.