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Is this a normal exhaust port?

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Old 04-13-08, 03:56 PM
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Is this a normal exhaust port?
I've just replaced my turbo and just discovered something a little unexpected in the exhaust ports. Notice the 2 extra holes towards the top of the port. Note that these are FD housings.


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Old 04-14-08, 07:37 AM
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Regardless, those holes are supposed to be there. Nothing is wrong with them.
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Old 04-14-08, 10:37 AM
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The holes are air/EGR passages.
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Old 04-14-08, 01:50 PM
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Originally Posted by Aaron Cake
The holes are air/EGR passages.
The holes in the sleeves? What's the nipple inside the exhaust manifold for then?
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Old 04-14-08, 03:21 PM
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The nipple is for air injection.

I'm fairly sure that the holes in the sleeves are for EGR. You'd have to check the FSM/training manual to be sure.
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Old 04-14-08, 03:30 PM
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Originally Posted by Aaron Cake
The nipple is for air injection.
Ah, well either way I guess I can still block it off and cut it out of the manifold like I was planning on doing, right?
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