Looking for clarification on vacuum setup for MC2150 and Nutter Bypass

[cuban11182]

While I'm waiting for my carb to arrive I'm trying to get my ducks in a row to get everything done. I've read that with the nutter bypass I can remove a ton of the vacuum lines and associated switches, but there is so much information that I'm getting lost. The CJ is registered in Texas so there is no emissions. I've read that some people say to leave the EGR, others say to remove it. For now I'll leave it on, and eventually will take it off and plate it. Can anyone verify that the image below is the one I should use?


Also from what I've read when doing it, I can remove most of the wiring associated with the computer. I thought I had seen a post about that, but canst seem to find it.

 

[Torxhead]

For starters, I would suggest installing a valve cover breather and removing that pcv breather. These older engines seem to require a lot of venting due to worn out rings and valve seals. the rest looks pretty good but you could install a fuel return from the fuel filter. My $.02

 

[cuban11182]

Isn't that pink line the return to the tank?

I'll get a breather for the backside of the value cover through.

Sent from my SCH-I535 using Tapatalk

 

[Torxhead]

The fuel return line comes up from the drivers side and is a 1/4" steel tube. The charcoal cannister is a good thing to have but does have a constant vacumn drain. There is another cannister available that does not provide that constant drain and does not have a filter on the bottom, but requires a bit different vacumn line routing. I don't have the p/n with me at this time though.

 

[cuban11182]

Torx if you happen to find that info please let me know.

Sent from my SCH-I535 using Tapatalk

 

[jeremy5780]

what is the CTO on that diagram?

 

[cuban11182]

I don't know. I looked at my jeep and didn't see it.

Sent from my SCH-I535 using Tapatalk

 

[jeremy5780]

I don't want to hijack your thread here but I also do not have a CTO on my 85 CJ7 . What is it? Do I need one?

 

[cuban11182]

No I'm fine with it. Time for us both to learn.

Sent from my SCH-I535 using Tapatalk

 

[cuban11182]

http://forums.off-road.com/jeep-short-wheelbase/4475-cto-valve.html

Looks like a thermostatic valve that opens when coolant reaches a certain point.

Sent from my SCH-I535 using Tapatalk

 

[mtnwhlr]

THis may help you understand
CTO valve? - Off-Road Forums & Discussion Groups

 

[cuban11182]

So if I don't have it, will I be alright?

Sent from my SCH-I535 using Tapatalk

 

[mtnwhlr]

yes

 

[cuban11182]

View attachment 16898 that might be mine but only has two ports

Sent from my SCH-I535 using Tapatalk

 

[mtnwhlr]

No thats not it it's mounted to the side of your intake below the carb.

 

[cuban11182]

I did a quick video. That earlier image was right in front of the carb a little lower., but I guess it isn't it.

https://www.youtube.com/watch?v=vqXC3Flz160

 

[mtnwhlr]

View attachment 16898 that might be mine but only has two ports

Sent from my SCH-I535 using Tapatalk

I'm sorry I went out and look at the engine I have sitting in my garage and you are right that plug goes to your CTO.

 

[NorthwestCJer]

Only vac I run. Is the line to the distributer like shown and the other is a manifold vac line straight to my egr. That's it. I ditched the charcoal can and without it the roll over valve doesn't work. I use a pcv breather


Sent from my iPhone using Tapatalk

 

[cuban11182]

So I'm guessin you don't have power brakes?