www.jec.org.uk

Hi all,

Can you please tell me what this is (inside the red circle)?
My engine doesn't have one. Do I need it? What's it called and what's it for?

Thanks,
J.

I think you are talking about the heat transfer pipe from the exhaust to the inlet manifold. It helps mixture and emissions control, especially when the engine is cold. Mike.

I think you are talking about the heat transfer pipe from the exhaust to the inlet manifold. It helps mixture and emissions control, especially when the engine is cold. Mike.

Hello again Mike Are you the only guy on this forum??!

Ok that's cool...so it's something that should be there. I'll need to find one.

Thanks again.

J.

I think this was mid-seventies exhaust emissions control requirement. My '73 XJ6 Se.1 doesn't have one of these, although I remember my previous '78 Se.2 model did.

LHD versions of series 1 XJs (emissions and non emissions versions) had the same heated inlet air arrangement using a cross over pipe. Mike.

I have a1976 4.2 litre Series 2 that has that device fitted.