Nutter bypass with weber 32/36 carb help - JeepForum.com
 
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post #1 of 7 Old 02-12-2009, 05:44 PM Thread Starter
pge27
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1990 YJ Wrangler 
 
Join Date: Feb 2009
Location: Mt Juliet, TN
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Nutter bypass with weber 32/36 carb help

I just recently bought a 90YJ. I'm completely new to the jeep world so I'm needing some help. The Jeep has a 32/36 weber on it and everything else is completely stock all the way back to what looks like the original exhaust. Jeep has 206k on the clock so a lot has got to go. Here is what I've done so far.
Replaced: cap & rotor, plugs, wires, thermostat, heater core, blower (from blazer), valve cover gasket, and the catalytic convertor. I've also done the "nutter bypass" on her. But, as of now, I'm lost as to what vaccuum lines I need to keep and what I can toss. I do have to run emissions testing, but it's just the sniffer....no visual. It did, just barely, fail emissions testing on my first attempt. But that was on the way home from picking it up. It was running rough and rich. My questions are.....
What vaccuum lines can I lose and where do they actually hook up? (most were dryrotted and or missing)
Can I lose the lines that go from the aircleaner to the convertor? (forgot what its called)

Probably gonna rebuild the weber. Any advice on different jets and where the best place is to buy a rebuild kit?
All help would be greatly appreciated. Thanks

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post #2 of 7 Old 02-12-2009, 06:05 PM
dodger889
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1989 YJ Wrangler 
 
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Location: mi
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The only vacum lines that are needed are the ones for the advance ( a ported off carb)and to the vacume for the diconnect one the front axle.

yes you loss the air preheator just cap it off (egr)

A 89 yj with a 4.0 aw4 sye out of an 92xj. Now the hard part is done time to get it up in the air just a bit. Working on 8.8 with 3.73 and lsd for the rear. and new D30 hp with 3.73 .
For those who have not figured this out I'm old school but can handle the new too.
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im just cheap, and cheap makes you creative.
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post #3 of 7 Old 02-12-2009, 06:55 PM Thread Starter
pge27
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1990 YJ Wrangler 
 
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Quote:
Originally Posted by dodger889 View Post
The only vacum lines that are needed are the ones for the advance ( a ported off carb)and to the vacume for the diconnect one the front axle.

yes you loss the air preheator just cap it off (egr)
So I cap off everything at the canister too?
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post #4 of 7 Old 02-13-2009, 03:53 PM Thread Starter
pge27
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1990 YJ Wrangler 
 
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Location: Mt Juliet, TN
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Anyone?????
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post #5 of 7 Old 02-13-2009, 04:08 PM
laffman
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1990 YJ Wrangler 
 
Join Date: Aug 2005
Location: Roseville
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This should help alot with the vacuum lines to the Weber. You can lose all the other vacuum lines.

http://www.jeepforum.com/forum/f12/weber-32-36-install-write-up-382309/

ElvisV04290 is very helpful if you need to ask questions. I kept my canister and EGR connected. There is a good diagram in that write up.

1990 Jeep YJ Laredo 4.2 I-6
2010 Jeep JK Islander 3.8 V-6
1982 Jeep CJ-8 Scrambler 304 V-8
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post #6 of 7 Old 02-13-2009, 04:54 PM
Fjguercio
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1978 CJ7 
 
Join Date: Dec 2007
Location: Burnsville, MN
Posts: 2,812
Here is a write up on the Weber Tune & Jet change.
There are some excellent tune up write up links and link for spark plug reading
There is also a great link for the nutter bypass with pics

There is another link for the clean up for the engine bay... if not smog tested... can remove everthing except the PCV, Power Brake, Distributor Advance. You will have to evaluate some of your newer sensors and auto trans have a few sensors that are kept I believe. I stripped everthing on my CJ

Sorry you just did tune up parts.... Hope you saw the TEAMRUSH upgraded parts for bigger cap/rotar with brass parts. If not you still might want to. There is link for that also.

http://www.jeepforum.com/forum/f8/weber-34-dgec-carb-too-rich-jets-tune-jeep-4-2-258-a-631105/

Regards,
Fred
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post #7 of 7 Old 02-15-2009, 08:17 PM Thread Starter
pge27
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1990 YJ Wrangler 
 
Join Date: Feb 2009
Location: Mt Juliet, TN
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Thanks for all of the replies. As of now, I'm just trying to get her back up to par and past emissions. Wanna get a DD out of her so that I can park the Stang for a while.
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