egr blocking plate
Submitted: Monday, Jan 14, 2013 at 14:46
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Gossy
anyone know of a supplier who makes EGR blocking plates for my GQ 96 rd28t?
easy to find them for the GU but not the GQ (their different).
thanks,
Reply By: Ross M - Monday, Jan 14, 2013 at 20:37
Monday, Jan 14, 2013 at 20:37
Gossy
If you remove the EGR valve body you can make a plate from sheet stainless steel.
Many people, drill a 10mm dia hole in the middle.
This allows some EGR flow when the valve opens but restricts the full flow.
This means the EGR valve mechanism runs cooler and the small flow allows modern ECU system to detect some flow and they usually don't put up an engine fault code.
The low flow of EGR mixes with the incoming airflow and even if there is some blowby oil mist, it is quantity and heat limited so doesn't turn the combination of the two into a build up of gunk in the inlet manifold and throttle valve area.
I don't like the square metal plate where the overhanging casting is unsupported. If tightened too much it can break the casting or distort the casting. Then to make it seal properly you have to "face" the valve assembly.
Ross M
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