300 6 head question
Thread Starter
|
New User
Joined: Apr 2009
Posts: 2
Likes: 0
300 6 head question
I am in the process of replacing a cracked head on my 91 300. I bought a head from an 88 or 89. My question is this:The new head does not have, for lack of a better term, an exhaust rail. This is a tube that looks to draw exhaust from each exhaust port and is piped into the air pollution system. So will the engine sensors work correctly if this is plugged. How much of a problem, if any, is this?
Thanks for any insight.
Thanks for any insight.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
Wm, Welcome to the FTE forums. 
Maybe you are talking of the A.I.R. injection manifold?
Does it look like figure 1 on this page?
LMC Truck Parts - Page 103
Maybe you are talking of the A.I.R. injection manifold?
Does it look like figure 1 on this page?
LMC Truck Parts - Page 103
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
From the dates shown on page 103 I'd have to assume the earlier model had it incorporated into the exhaust manifold.
(I'm sorry, I am no expert in the inline 6)
The A.I.R. system pumps air into the exhaust plumbing to facilitate more complete combustion.
I really don't know what the O2 sensor will see, or what it will do to your fuel injection.(other than lean it in an attempt to correct the mixture)
I imagine you are in Guam?
Is there a chance you can get the exhaust manifold that was attached to this head?
There are others on this board far more knowledgeable than me with regard to your engine.
Hopefully Subford or someone else will chime in.
(I'm sorry, I am no expert in the inline 6)
The A.I.R. system pumps air into the exhaust plumbing to facilitate more complete combustion.
I really don't know what the O2 sensor will see, or what it will do to your fuel injection.(other than lean it in an attempt to correct the mixture)
I imagine you are in Guam?
Is there a chance you can get the exhaust manifold that was attached to this head?
There are others on this board far more knowledgeable than me with regard to your engine.
Hopefully Subford or someone else will chime in.
