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02-01-2008, 11:36 AM
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#1 | |
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Registered User
1989 YJ Wrangler
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Questions about carb and vacuum lines
OK so I know that jeeps are not good on gas no surprise there but I'm sure my jeep is capable of more mileage tan its getting right now. By my estimates I'm getting about 6mpg. I also am at stock height and running 31's. My engine has about 230000km on. I was planning on checking the vacuum lines because I already found one leak. I also have the carter carb on it.
With an engine that has that many kms on it I think there may be some problems with the computer/carb so I'm planning on nuttering the jeep and installing a weber. When I do the install I will prob just use new vac lines for the carb I believe there are 4? Do you think this will most likely solve my problem and is the best solution instead of wasting my time with the carter? Also someone told me to plug vac leaks I should get some vac line and put a small screw in the end anyone have experience with that?
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89 YJ 4.2L, TF999, NP231, 31X10.5X15R TSL, No sway bars or track bars, RE 4" lift, Optima red top [COLOR="Red"]CANADIAN[/COLOR][COLOR="White"]WHEELER[/COLOR] |
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02-01-2008, 11:43 AM
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#2 | |
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Registered User
1992 YJ Wrangler
Join Date: Dec 2007
Location: Deming,New Mexico, New Mexico
Posts: 2,174
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Golf tee's make great vacuum line pluggers.
Quote:
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All other things being equal, the simplest solution is the best. Ich liebe meinen Jeep! |
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02-01-2008, 01:57 PM
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#3 |
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Registered User
1987 YJ Wrangler
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Elvis did a really good writeup with how to install the carb and it has a diagram of the vacuum lines that you can keep.
http://www.jeepforum.com/forum/f140/weber-32-36-install-382317/ Good luck Rick
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87 YJ 4.2L, Weber 32/36, rear bumper tire carrier, nutter bypass, RE 4 inch lift, SYE, AX 15, lined the body tub "Baby when you said you wanted a project jeep I expected you to spend a lot of money on it" <---Worlds best wife!!! |
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02-01-2008, 08:40 PM
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#4 |
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Registered User
1989 YJ Wrangler
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Many answers to many questions. I used this site to get my Carter carbed engine Nuttered and de-smogged. Tons of great info. Vacuum line routing, the works...
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89' YJ Larado 4.0L,AX15 01' Grand Cherokee 4.0L Check my Gallery for pics. My Rebuild Thread Take a minute and fill out your profile, Please |
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02-01-2008, 08:53 PM
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#5 |
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Registered User
1990 YJ Wrangler
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x2 on Burnerman's link. Excellent site, not just for getting things to stock but understanding what you can remove and why.
I'm nuttered with a MC2100, and I still run vac lines to the charcoal canister and egr through ported vacuum at the CTO valve. It's only a few vac lines and works great. I can find the diagram I used, if you want. |
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02-01-2008, 09:14 PM
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#6 |
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Registered User
1987 YJ Wrangler
Join Date: Jun 2007
Location: Saskatchewan, Canada
Posts: 2,497
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not to hijack, but do the 10" and 4" vacuum switches need to be connected? If so, how are they routed to?
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1991 Land Cruiser HDJ81- 1HD-T Turbo Diesel, Factory F/R Selectable Lockers, Warn M8274, Webasto Thermo 90S 1987 YJ Laredo |
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02-01-2008, 09:20 PM
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#7 |
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Registered User
1989 YJ Wrangler
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I posted a link that will answer your question. Come on....
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89' YJ Larado 4.0L,AX15 01' Grand Cherokee 4.0L Check my Gallery for pics. My Rebuild Thread Take a minute and fill out your profile, Please |
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02-01-2008, 09:22 PM
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#8 |
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Registered User
1987 YJ Wrangler
Join Date: Jun 2007
Location: Saskatchewan, Canada
Posts: 2,497
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i was just looking at the link, thats where i got the question
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1991 Land Cruiser HDJ81- 1HD-T Turbo Diesel, Factory F/R Selectable Lockers, Warn M8274, Webasto Thermo 90S 1987 YJ Laredo |
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02-01-2008, 09:27 PM
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#9 |
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Registered User
1989 YJ Wrangler
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Here these are the things that are left after a Nutter......
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89' YJ Larado 4.0L,AX15 01' Grand Cherokee 4.0L Check my Gallery for pics. My Rebuild Thread Take a minute and fill out your profile, Please |
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02-01-2008, 09:28 PM
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#10 |
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Registered User
1987 YJ Wrangler
Join Date: Jun 2007
Location: Saskatchewan, Canada
Posts: 2,497
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thanks, sorry about the stupid question, i didn't think to look under that category
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1991 Land Cruiser HDJ81- 1HD-T Turbo Diesel, Factory F/R Selectable Lockers, Warn M8274, Webasto Thermo 90S 1987 YJ Laredo |
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02-01-2008, 09:30 PM
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#11 |
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Registered User
1989 YJ Wrangler
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And furthermore here's the vacuum line schematic's of the individual systems. Once Nuttered all the stuff on the far left is gone.
I'm not trying to be a d**k but you need to read that whole site to figure things out. That's what I did. It can get confusing but it's all there.
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89' YJ Larado 4.0L,AX15 01' Grand Cherokee 4.0L Check my Gallery for pics. My Rebuild Thread Take a minute and fill out your profile, Please |
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02-02-2008, 07:07 AM
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#12 |
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Registered User
1986 CJ7
Join Date: Aug 2001
Location: North East Texas, Texas
Posts: 992
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Please excuse me for throwing in my opinion here as well, but another thing to NOT do is waste your money on a carb. There is nothing wrong with the carter except the Emissions Stepper and 20 years of neglect.
Contrary to the Nutter instructions, put the stepper needles half way if you want fuel economy. Get a GOOD quality Carb Kit and also replace the Float! The BBD Carter is probably one of THE most trouble free and reliable carbs ever built. It originated back in the 60's on 318 Mopar V8 engines and a lot of them are still running the original carb! Bruce |
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