(KA24E) Cleaning EGR valve in the car?

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mattscar
Posts: 1536
Joined: Tue Oct 18, 2005 11:59 am
Car: 1989 240sx, 1992 Miata

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The EGR is a PITA to remove and I just gave up. Is there a way to clean it while still installed in the car?

I seafoamed the car and Sprayed carb cleaner to the vacuum hose lines too.

My NOx is about 100 over the limit and I just want to pass smog at the moment.

Thanks


truckboy

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three small hexagon nuts need to be removed and be careful with the anti rattle switch ( whice is the small black piece next to the egr), also try removing the pipe leading down to the manifold ( 2 nuts, and attached to the egr valve) soak this overnight in paraffin, with the egr valve use truck film remover or carb cleaner,and a small brush ( metal brush may be too harsh, hard plastic\nylon brush is more suitable) be warned it is a messy job

three small hexagon nuts need to be removed and be careful with the anti rattle switch ( whice is the small black piece next to the egr), also try removing the pipe leading down to the manifold ( 2 nuts, and attached to the egr valve) soak this overnight in paraffin, with the egr valve use truck film remover or carb cleaner,and a small brush ( metal brush may be too harsh, hard plastic\nylon brush is more suitable) be warned it is a messy job, failure of the egr would probably result in loss of power and rough idling, basically the egr sends back heat into the engine ( sometimes to kill of unspent fuel, also to bring car to operating temp alot quicker than other cars), you can actually do away with the egr valve and not notuce any difference, but that would be an enviromental issue ( throwing out gases when your engine can churn them up for you) also there is an allard steel pipe available, whice replaces the egr valve, and is hole free so no more oily bits on your engine.

vancouverbc
Posts: 3197
Joined: Thu Oct 30, 2003 1:30 am
Car: 1991 240sx

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the egr valve is easy to remove. its not very hot at that end. 30mm box end wrench will do the job. swivel socket for the two 12mm bolts.


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