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Old 05-26-2014, 04:22 PM   #1
1987chevyv10
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Tube thing on manifold

Hi, do any of you know what this tube is coming off the manifolds on both sides of the motor? 1987 350 tbi
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Old 05-26-2014, 04:37 PM   #2
csdineley
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Re: Tube thing on manifold

It's for the air injection. Part of the smog pump system.
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Old 05-26-2014, 06:17 PM   #3
1987chevyv10
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Re: Tube thing on manifold

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It's for the air injection. Part of the smog pump system.
Okay thanks. I got a set of headers without anything to connect to it so can i just get rid of it?
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Old 05-26-2014, 06:19 PM   #4
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Re: Tube thing on manifold

Depends on if you need to pass emissions in your area.
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Old 05-26-2014, 07:01 PM   #5
1987chevyv10
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Re: Tube thing on manifold

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Depends on if you need to pass emissions in your area.
I don't have to pass emissions. So i'll be fine just to cut the hose off and put the headers on?
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Old 05-26-2014, 07:10 PM   #6
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Re: Tube thing on manifold

Shouldn't need to cut it. There should be a rubber hose that connects the metal manifold pipe to the pipe that runs behind the motor. Once the manifolds are unbolted should just pull off. (At least that's how mine was). I also removed the smog pump when I installed my headers.
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Old 05-26-2014, 08:33 PM   #7
1987chevyv10
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Re: Tube thing on manifold

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Originally Posted by csdineley View Post
Shouldn't need to cut it. There should be a rubber hose that connects the metal manifold pipe to the pipe that runs behind the motor. Once the manifolds are unbolted should just pull off. (At least that's how mine was). I also removed the smog pump when I installed my headers.
Okay thanks, need to do anything special to get rid of the smog pump? Like other than just unbolt it? I don't have my truck at home at the moment to check
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Old 05-26-2014, 08:54 PM   #8
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Re: Tube thing on manifold

Just unbolt it, and remove the belt for it.
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