MC2100 install help - JeepForum.com

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post #1 of 19 Old 04-23-2013, 06:13 PM Thread Starter
adrose211
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MC2100 install help

So I've been searching and found the answers to all my questions so far except this one...

Where connects to this nipple? I've got the fuel inlet on the front of the carb, and the PCV in the middle of the rear, along with the ported vacuum to distributor underneath the choke.

Thanks in advance for helping me out!



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post #2 of 19 Old 04-23-2013, 06:26 PM
jeepwhore
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I didn't know what that was either and since the old carb had nothing like it I just capped it.

'84 CJ-7: Yota axles (spartan locked front, e-locked rear) 4" BDS, 1" Daystar & 3/8" shackle lifts, 35" X-Terrains on steelies, YJ Tub & family roll bar, heater blower upgrade, 4.2L w/MC2100 & Team Rush, Warn 8274. Rebuilt 4.2/4.0 hybrid, AX15 and twin sticks/clocking ring waiting to go in.

The advertised position for a topless, dirty jeep girl has been filled......by my wife. Thanks to all that applied.
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post #3 of 19 Old 04-23-2013, 06:28 PM
Ivehad4
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On my 78 that attaches to the hot end of a small heat exchanger (not sure what AMC or MC called it) that fishes down into the intake. It provides hot air to the choke to open it up as the engine warms. The other (cold) end of the heat exchanger attaches to the 45* elbow hanging from the bottom of the filter base (shown in your pic)

1978 CJ7 304/T150
1959 Willys CJ5 F4/T90
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post #4 of 19 Old 04-23-2013, 06:30 PM
skizriz
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I believe it sucks hot air up and into the choke to help regulate how fast it opens.
It needs capped off if not used.
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post #5 of 19 Old 04-23-2013, 06:58 PM
zillla
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It is the connection to the piping to the choke stove. The choke stove should be just below the choke in the manifold, or at least the hole for it should.

Pull my finger
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post #6 of 19 Old 04-23-2013, 07:11 PM Thread Starter
adrose211
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OK, thanks again to y'all. I'll cap it.
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post #7 of 19 Old 04-23-2013, 07:18 PM Thread Starter
adrose211
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One more question: is there a good part number for the air filter assembly?

Thanks again
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post #8 of 19 Old 04-24-2013, 07:41 AM
Caish
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Quote:
Originally Posted by adrose211 View Post
One more question: is there a good part number for the air filter assembly?

Thanks again
Any generic Holley four barrel FILTER will work.
I used a stock ford FILTER HOUSING on mine from a F150, I did not like the idea of a wide open air filter on something that might be waist deep in the mud of creek crossing one day.

(edited this, I must have really been tired typed it yesterday)

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Last edited by Caish; 04-25-2013 at 07:03 AM. Reason: I was tired...
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post #9 of 19 Old 04-24-2013, 08:12 AM
Matt1981CJ7
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Guys have also made adapters to use their factory air cleaner assemblies with the 2100.

Matt
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post #10 of 19 Old 04-24-2013, 04:43 PM
skizriz
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Quote:
Originally Posted by Matt1981CJ7 View Post
Guys have also made adapters to use their factory air cleaner assemblies with the 2100.

Matt
Going to be a project of mine one of these days. I hate the small open element filter.
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post #11 of 19 Old 04-24-2013, 05:24 PM Thread Starter
adrose211
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that all makes sense. I'll investigate that sometime AFTER I get it running again.

Thanks y'all
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post #12 of 19 Old 04-24-2013, 11:49 PM Thread Starter
adrose211
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Well, the questions just keep on comin'...



What is the red wire for that is attached to the underside of the intake manifold? The ECU is sitting in a drawer in my garage. Can I just leave this unplugged?



same question for the green wire - it sits on what I'm assuming is a sensor on the top of the intake manifold towards the rear?



My choke has two wires sticking out of the connector, but one is clipped... Is this bad?


Thanks
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post #13 of 19 Old 04-24-2013, 11:53 PM Thread Starter
adrose211
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.
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post #14 of 19 Old 04-24-2013, 11:57 PM Thread Starter
adrose211
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Just because it's late, I'm at work, and I wish she was runnin again!

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post #15 of 19 Old 04-25-2013, 10:43 AM
scrapman
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Quote:
Originally Posted by adrose211 View Post
Well, the questions just keep on comin'...



What is the red wire for that is attached to the underside of the intake manifold? The ECU is sitting in a drawer in my garage. Can I just leave this unplugged?



same question for the green wire - it sits on what I'm assuming is a sensor on the top of the intake manifold towards the rear?



My choke has two wires sticking out of the connector, but one is clipped... Is this bad?


Thanks
The first pic is your manifold heater, which should be hooked to an oil pressure switch on the passenger side of the engine.(kind of behind the distributor).

Not sure about the green wire, but your choke should be fine.

Here is a link to a site that helped me a ton:
http://home.sprynet.com/~dale02/list.htm
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