what is a swirl chamber

[bill196510]

Its a thingy on right side of engine, with a rod and ball joint on it, think thats what its called anyway
Can it be faulty and affect mpg
C5 2.2 hdi 2003

[Peter.N.]

Its not a swirl chamber, they are in the cylinder head of an IDI diesel, its a swirl flap the purpose of it being to agitate and direct the air entering the engine - but they don't really make a lot of difference. I have tried everything to improve the economy of my 2.2 but I've given up now.

Peter

[1275jstrap]

It is deff not a swirl chamber the point of this device is to create manifold depression eg vacuum as diesels do not have a depression in the manifold to induce egr they have a basic blockage device in the intake system to create a depresion in the intake to induce the exgaust gasses into the intake system.

[bill196510]

What can affect mpg, got new oils and filters, used injector cleaner

[Peter.N.]

I have asked the same question. There must be something fundamentaly wrong with the design of the engine, being bigger it should have the potential of a better fuel consumption than the 2.0. if driven gently.

Peter