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MC 2100 carb search
Posted: Mon Aug 18, 2008 6:29 pm
by jeeperofva
I bought a carb from the fellow in Colorado and it want work on my jeep. I purchased a 2150 with # 47 jets or that is what he sent in the trade. I got screwed, anyway I am looking for a rebuilt 2100 or to swap somebody my 2150 for a 2100. I have a 1980 cj 5 with 258 6 cyl and the 2150 is to big. email me chuck_04 at comcast.net
Hmm
Posted: Mon Aug 18, 2008 10:17 pm
by Andrew
47 jets are fine.
2150 doesn't indicate the size of the carb. A 2150 is not necessarily larger than a 2100.
What is cast on the side of carb?
carb
Posted: Mon Aug 18, 2008 10:25 pm
by jeeperofva
it is a 1.08 but I cant get it to work or run right. I have fooled with this thing until i'm ready to throw it in the trash "put my carter back on". I have changed the vacuum several ways but still want idle right or rev up. It backfires through the exhaust when Idling back down. I have changed the timing and everything I can think of !!!
Posted: Mon Aug 18, 2008 10:40 pm
by TerryD
Sounds like the carb just needs some decent tuning work. If you want, I can take a look at it sometime and see what I can figure out.
YEah
Posted: Mon Aug 18, 2008 11:10 pm
by Andrew
That's the right carb!
1.08 MC 2100/2150
46/47 jets
8.5-10.5 Power Valve (they do not give you the right ones in the kits)
They are dead simple too.
Sounds like you have a vacuum leak.
Try the carb cleaner trick thingy. Spray carb cleaner on various spots where a leak could be (around the base maybe). You can tell if you hit a vacuum leak because the engine will change the way it runs (idles smooths out, etc.).
I also wouldn't mind taking a look at it. I run MCs on all my Jeeps. They are great carburetors, and really aren't hard to get running right.
I can also probably hook you up with another 1.08 for cheap if that one does have something majorly wrong with it.