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Unread 07-03-2013, 11:42 AM   #46
John Strenk
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1. Yes, try NAPA

2. Need to clarify terminology or we will get lost. .
That is called the Air Cleaner Housing. the intake is what the carb sits on that attaches to the engine head.
I bypassed the TVS when I hooked up my EGR. Never noticed much of a difference. Maybe it would work better in cold weather.

the hot air intake is to prevent carburetor icing on those cold but humid days when the dew point is low. It activates a vacuum motor on the air cleaner housing that will take air from around the hot exhaust manifold to keep the carb warm. That is what that 2" round aluminum tube you have showing in the picture.

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Unread 07-03-2013, 11:49 AM   #47
KnoxButler
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1) Awesome! Ill start getting ready to do that. Is it hard to replace the diaphragm?

2) I live in Arizona, it does get cold but not very humid. Idk ill leave that the way it is, as for the TVS I think im going to bypass it to insure that my EGR is working for the emissions test.
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Unread 07-03-2013, 01:12 PM   #48
John Strenk
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How hard?
Depends how corroded the screws are into the base of the distributor....

Lots of PB Blaster and time to soak.
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Unread 07-03-2013, 01:17 PM   #49
KnoxButler
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Ill do that! But first im in kinda a rush to get this jeep through emissions, just sold my DD and now need this one. Do you think it would adversely effect my emissions?
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Unread 07-03-2013, 01:20 PM   #50
LumpyGrits
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Quote:
Originally Posted by KnoxButler View Post
Ill do that! But first im in kinda a rush to get this jeep through emissions, just sold my DD and now need this one. Do you think it would adversely effect my emissions?
Yes
One thing is that you can fail smog if your ign. timing is off.
You can't get a 30 day extension on your reg?

LG
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Unread 07-03-2013, 01:43 PM   #51
KnoxButler
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No previous reg, just bought it, the timing seems fine. I can get a timing light from a friend, if the timing is right it wouldn't change right? As long as the advance is capped?
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Unread 07-03-2013, 01:49 PM   #52
LumpyGrits
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A capped advance port could/may/might be cause for a fail on a visual inspection.
LG
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Unread 07-03-2013, 01:52 PM   #53
KnoxButler
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Hypothetically if it didn't cause a fail on a visual inspection...
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Unread 07-03-2013, 02:01 PM   #54
LumpyGrits
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NOT hypothetical at all, as it would be cause for smog failure here in Ca.
You should ck with the testers in AZ before your next test.
LG
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Unread 07-03-2013, 02:03 PM   #55
KnoxButler
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LG I Understand that it might cause a visual inspection failure, I dont care about that right now what I want is for the Emissions to be below the standard. Once im there ill work from there..
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Unread 07-03-2013, 02:15 PM   #56
LumpyGrits
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Don't see how you could ever pass smog with a blocked advance.
In PRK, if you fail the visual, you fail, period.
Is it different in Az??
LG
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Unread 07-03-2013, 02:21 PM   #57
KnoxButler
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Yes, the inspectors are 16-18 years old and never worked on a car a day in there life. They open the hood and take a look as a formality not because they know what to look for.
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Unread 07-03-2013, 02:30 PM   #58
LumpyGrits
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Good luck then, and let's here back how it goes.
LG
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Unread 07-03-2013, 04:28 PM   #59
KnoxButler
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Update: So I took the Jeep into the Emissions test station for the second time. I passed the visual inspection even with the vacuum advance capped .
Everything had improved, like before I passed the loaded test. This time I also passed the idle co reading (much improved), however my HC reading raised on both idle and loaded.

Im going to do some research into what causes HC emissions, in the mean time if you all could offer any advice id love to hear it!
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Unread 07-03-2013, 05:25 PM   #60
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The only thing that I can think of that changed is that my mixture screws went from 5 turns out from seated to 2 3/4 on the second test.
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