Smog Equipment
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Senior User
Joined: Jul 2001
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Smog Equipment
I just finished up swapping out my 302 and 5 speed mazda tranny for another 302 and a C6 I built in my 1991 F150 4x4 XLT. I built the motor with a set of 1965 289 heads I redid. The problem or question I have is about the smog equipment. I removed the pump and the hoses coming from the exhaust with out a problem except for the two vacuum lines I have that went to the smog stuff behind the heads for the thermotrac system.
What do I do with them? Plug them or them let be?
I need some advise.
Thanks for your help.
What do I do with them? Plug them or them let be?
I need some advise.
Thanks for your help.
Posting Guru
Joined: Jun 1999
Posts: 1,100
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From: Durham
Smog Equipment
Definately plug them. I believe that these are actually air pipes that run from the air pump and into the back of the head. Ford has the screw plug inserts and they are a weird size thread. You can also use the crossover pipe from head to head where that y'd into a valve and replace the valve with a threaded cap that you can get in the plumbing section of any hardware store.
'82 F150 2WD w/351W (orig 300 I6)
Slik
'82 F150 2WD w/351W (orig 300 I6)
Slik
Thread Starter
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Senior User
Joined: Jul 2001
Posts: 119
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Smog Equipment
The reason for getting rid of the smog equipment is that with my 1965 heads there is not thremotrac ports to screw the Y pipe into. The lines I am talking about are the ones that go to the bypass/diverter air control valve from the TAB TAD switch. These are vacuum lines that just plug in. Now I don't have anything to plug them into so what do I do with them?
