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(Yesterday )Hermjeji Wrote: For the demandate side, I read previously we needed two block plates, one at the outlet side of the EGR and one at the intake side of the engine where the crossover tube goes.
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That is unfortunately incorrect information ...

A. A plate needs to be installed at the intake manifold where the egr piping meets the manifold.

B. You need one at the EXHAUST MANIFOLD, BEFORE IT GOES INTO THE EGR COOLER, NEAR CYLINDER #1, and NOT at the back side of the cooler. - The reason is that over time, if there is no block plate there, the EGR cooler will fill with soot over time,.. create these hardened stones (due to heat and moisture), .. and then they will come spitting back out randomly back thru the manifold, damaging and destroying the turbo every so often.

BOTH PLATES need to be very thick. Like 1/4" or better, as there can be up wards of 80-90+PSI of pressures at the exhaust when engine is under full operating loads.