EGR Plates

[dennis_lambert]

I know this is a not the greatest Sketch.....But here is a pattern for EGR blanking plates.
Cheers!

[Slimdog]

You got that right. Nice use of the 1 to 1 scale.

Did you make yours out of 1/4" plate?

[dennis_lambert]

It was Drawn on a napkin sitting on a Stump,with pale ale in one hand...Windy day,raining ...up hills...
I will work on a better Drawing to replace the knapkin sketch while I am stuck in the office under soul sucking flourecent lighting and no windows..

Oh yeah ...The first plates I made were made out of 1/4 normalized plate steel.The next batch (if I ever get around to it) is the same,with the exception of the plate on the cold side, its will be now made from 1/4 thick Alum.

[FalcoColumbarius]

It was Drawn on a napkin sitting on a Stump,with pale ale in one hand...Windy day,raining ...up hills...
I will work on a better Drawing to replace the knapkin sketch while I am stuck in the office under soul sucking flourecent lighting and no windows..

Oh yeah ...The first plates I made were made out of 1/4 normalized plate steel.The next batch (if I ever get around to it) is the same,with the exception of the plate on the cold side, its will be now made from 1/4 thick Alum.

I think that's a good idea. I originally used a mild steel plate between the EGR and the intake. One day I was climbing out of Kamloops toward Merritt and I noticed a significant lose in power. When I got back to Van I opened everything up and the bolts holding the EGR onto the intake just slid out with the threads from the receptacle still wrapped around them. I had read about galvanic reaction but I never thought that it would really happen to me. In the end I had a quarter inch plate of aluminium welded over the EGR mount on the intake.

Falco.

[dennis_lambert]

Yes,Falco you hit the nail on the head!Dismilar metals corrosion .Steel and Alum have different electrode potentials.The previous batch was however coated to prevent this...product improvment.Even a thin gasket between will substantially reduce the long term effect.
Cheers!

[Tojo]

A PDF drawing based on your dimensions:

[jessef]

Even a thin gasket between will substantially reduce the long term effect.
Cheers!

There should be a gasket between the plate and the manifold, old or new. If the old one is baked on the EGR side and you can't remove it or is butchered, you can get exhaust gasket patch material at Lordco and cut it to fit = no problems. If the gasket is baked on the manifold side but still has material all around, that will work fine as well.

[dennis_lambert]

Thanks Tojo for the Awsome Drawing!!
Good point jfarsang on the Gasket!
Maybe a Moderator could move Tojo's Drawing to the tech section.....