MC2100/2150 bare vacuum lines - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > MC2100/2150 bare vacuum lines

Advance Adapters SYE KitsFS: Jeep Fog Light LED Bulbs! Several Brightness Options! Rough Country Lift Kits and Parts!

Reply
Unread 08-24-2013, 01:42 AM   #1
kgb_m3
Registered User
1989 YJ Wrangler 
 
Join Date: Dec 2011
Location: San Diego, CA
Posts: 940
MC2100/2150 bare vacuum lines

Was doing some maintenance last night and discovered a vacuum line mess at the charcoal canister. One ripped line and 3 going to incorrect location. I'm running MC2150, nutter bypass and TFi ignition upgrade. Have a trip lined up in a few days and need Jeep running right.

Could someone please post absolute bare minimum way to run the MC carb. I would like to delete the canister out of equation till I get back and buy new vacuum hoses. Then connect everything right. For now what can I do to delete the can? I can't seem to find any diagrams that bypass the canister.

__________________
89 YJ 4.2L http://www.jeepforum.com/forum/f12/kgb-89-yj-storyline-build-thread-1520814/
96 XJ 4.0L http://www.jeepforum.com/forum/f177/600-96-xj-budget-daily-overland-build-1855418/
http://www.jeepsunclassified.com
kgb_m3 is offline   Reply With Quote
Unread 08-24-2013, 04:33 AM   #2
Rproject
Web Wheeler
 
Rproject's Avatar
1987 YJ Wrangler 
 
Join Date: Aug 2008
Location: Sandwich, IL
Posts: 2,767
My canister was out of the equation before I got mine, I actually - somewhat - brought it back after the 2150 swap.

The purpose is supposed to be to collect excess fuel vapors and return them to the tank. All my lines were missing. I connected the vent line on the front of the 2150 to the canister just so I wouldn't have any fuel spill out while off camber. Other than that, I have nothing connected to my canister.
__________________
1996 White ZJ
1987 Maroon YJ (sideways build)
1996 Forest Green XJ

The "sideways" build thread: http://www.jeepforum.com/forum/f22/r...hread-2164793/
Rproject is offline   Reply With Quote
Unread 08-24-2013, 08:05 AM   #3
kgb_m3
Registered User
1989 YJ Wrangler 
 
Join Date: Dec 2011
Location: San Diego, CA
Posts: 940
I see what you're saying. However for now I just want to bypass the can and run only 2 or 3 lines needed to run the truck. I'm assuming those would be brake booster, PCV and distributor. Am I missing anything? There was a pic of minimum vacuum line configuration for MC carb, can't seem to find it...
__________________
89 YJ 4.2L http://www.jeepforum.com/forum/f12/kgb-89-yj-storyline-build-thread-1520814/
96 XJ 4.0L http://www.jeepforum.com/forum/f177/600-96-xj-budget-daily-overland-build-1855418/
http://www.jeepsunclassified.com
kgb_m3 is offline   Reply With Quote
Unread 08-24-2013, 08:40 AM   #4
roadyrob
Registered User
1987 YJ Wrangler 
 
Join Date: Apr 2007
Location: west palm beach fl
Posts: 1,784
theres a diagram in this thread, just eliminate what you don't need.
http://www.jeep-cj.com/forums/f2/210...-1-14-a-16682/
__________________
Do everything with a positive attitude, it won't always work but you'll piss enough people off to make it worthwhile.

the voices aren't real but they sure have good ideas.
roadyrob is offline   Reply With Quote
Unread 08-24-2013, 10:22 AM   #5
jojojeep1
Registered User
1988 YJ Wrangler 
 
Join Date: Nov 2009
Location: 11779, long island n.y
Posts: 575
I have one vac line going to the vac advance and that's it , I pluged off the rest of the carb and you can balance a dime on my air filter that's how nice the jeep runs.
jojojeep1 is offline   Reply With Quote
Unread 08-24-2013, 04:30 PM   #6
kgb_m3
Registered User
1989 YJ Wrangler 
 
Join Date: Dec 2011
Location: San Diego, CA
Posts: 940
^^ That's what I want to do as well. Couple of things though, what did you do with your PCV valve? What about carb bowl vent tube, it used to go to canister, do i plug it or leave it open?
__________________
89 YJ 4.2L http://www.jeepforum.com/forum/f12/kgb-89-yj-storyline-build-thread-1520814/
96 XJ 4.0L http://www.jeepforum.com/forum/f177/600-96-xj-budget-daily-overland-build-1855418/
http://www.jeepsunclassified.com
kgb_m3 is offline   Reply With Quote
Unread 08-24-2013, 04:45 PM   #7
Rproject
Web Wheeler
 
Rproject's Avatar
1987 YJ Wrangler 
 
Join Date: Aug 2008
Location: Sandwich, IL
Posts: 2,767
Quote:
Originally Posted by kgb_m3 View Post
^^ That's what I want to do as well. Couple of things though, what did you do with your PCV valve? What about carb bowl vent tube, it used to go to canister, do i plug it or leave it open?
I did the same thing. Vac advance & 1 line to the canister for the vent. Everything else is capped.
__________________
1996 White ZJ
1987 Maroon YJ (sideways build)
1996 Forest Green XJ

The "sideways" build thread: http://www.jeepforum.com/forum/f22/r...hread-2164793/
Rproject is offline   Reply With Quote
Unread 08-24-2013, 06:55 PM   #8
kgb_m3
Registered User
1989 YJ Wrangler 
 
Join Date: Dec 2011
Location: San Diego, CA
Posts: 940
Here's what I got now and it runs great!

PCV going to intake manifold. Distributor to carb. Brake booster to manifold. Carb vent and EGR valve left open. That's it and it runs great. Canister is completely deleted and everything else is capped off.
__________________
89 YJ 4.2L http://www.jeepforum.com/forum/f12/kgb-89-yj-storyline-build-thread-1520814/
96 XJ 4.0L http://www.jeepforum.com/forum/f177/600-96-xj-budget-daily-overland-build-1855418/
http://www.jeepsunclassified.com
kgb_m3 is offline   Reply With Quote
Unread 08-27-2013, 12:07 PM   #9
vadslram
Registered User
1990 YJ Wrangler 
 
Join Date: Jan 2006
Location: VA Beach
Posts: 4,659
Quote:
Originally Posted by kgb_m3 View Post
I see what you're saying. However for now I just want to bypass the can and run only 2 or 3 lines needed to run the truck. I'm assuming those would be brake booster, PCV and distributor. Am I missing anything? There was a pic of minimum vacuum line configuration for MC carb, can't seem to find it...
Front lockup?
That's the only 4 I'm running right now. The tank vent and carb vent both go to the canister but activating line from the carb softened and broke so I just capped it. I know I have to replace it eventually or the canister will get soaked.
vadslram is offline   Reply With Quote
Unread 08-27-2013, 02:00 PM   #10
Rproject
Web Wheeler
 
Rproject's Avatar
1987 YJ Wrangler 
 
Join Date: Aug 2008
Location: Sandwich, IL
Posts: 2,767
Quote:
Originally Posted by vadslram View Post

Front lockup?
That's the only 4 I'm running right now. The tank vent and carb vent both go to the canister but activating line from the carb softened and broke so I just capped it. I know I have to replace it eventually or the canister will get soaked.
I capped that line at first as well, but my mechanic buddy told me it had to vent, so I ran it to the canister. It's the only thing connected to the canister.
__________________
1996 White ZJ
1987 Maroon YJ (sideways build)
1996 Forest Green XJ

The "sideways" build thread: http://www.jeepforum.com/forum/f22/r...hread-2164793/
Rproject is offline   Reply With Quote
Unread 08-27-2013, 05:19 PM   #11
kgb_m3
Registered User
1989 YJ Wrangler 
 
Join Date: Dec 2011
Location: San Diego, CA
Posts: 940
Front lockup is manual cable. Vacuum lock failed long time ago.
__________________
89 YJ 4.2L http://www.jeepforum.com/forum/f12/kgb-89-yj-storyline-build-thread-1520814/
96 XJ 4.0L http://www.jeepforum.com/forum/f177/600-96-xj-budget-daily-overland-build-1855418/
http://www.jeepsunclassified.com
kgb_m3 is offline   Reply With Quote




Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.