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Ignorant question.

Today I finally managed to start Project Jeep Deere for the first time in several years of building/therapy. The CJ-7 has a new MPFI kit and a new exhaust. My question is this:

The new down pipe from the exhaust manifold to the cat has a small 1", or so, tube sticking up a few inches back from the manifold. What is it for?

It's been too long since I started the build and I am too excited to crack a book to figure it out. So my post is two-fold 1)I get a question answered and 2) I get to toot my own horn about my first vehicle build.

Thanks for helping! Really, this group, and it's denizens, has been a great source of info and support!

Reply to
Jeepers
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Possibly to pre-heat the air going to the air filter?

Reply to
JimG

Possibly. I just don't recall. Right now all I know is there Nuthin' like the smell of stickers burning off a new exhaust pipe! Woo-Hoo!

Now that I know that I didn't leave a rag in the cylinder head or mice didn't move into the manifold, I can move on to re-assembly of the body. Hopefully I can get that done before my 11 y.o. graduates!

Reply to
Jeepers

I had one on My toyota Tercel with Throttle Body Injected carb, It was to heat up the Engine or the carb. If you had a carb before and switch to EFI i guess you dont need it anymore, and you can probabbly use a plomber accessory to block it.?? !! did you buy the original replacement ?

"Jeepers" a écrit dans le message de news: snipped-for-privacy@news-east.newsfeeds.com...

Reply to
Patrick

yes

Reply to
Jeepers

That is where the air injection system "upstream" air enters the exhaust system. The "downstream" air enters in the middle of the cat converter.

The MPI system probably doesn't use air injection.

Reply to
bllsht

Reply to
L.W.( ßill ) Hughes III

ahh, yes, I'll see what I can do...

Reply to
Jeepers

John Deere, what else?

Reply to
Jeepers

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