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post #1 of (permalink) Old 02-14-2001, 01:28 AM Thread Starter
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altitude compensator on mc2150

I have a mc2150 from a 84 ltd with a 3.8L v6 and was wondering where the altitude compensating thing is. From reading earlier posts they say its on the back of the carb but on mine I think its on the front. I am saying the front is where the accel pump is. Well right above the accel pump there is a box that extrudes from the carb body. It has 4 screws that hold its cover on and on the top of it there is a vacuum fitting. Can anybody tell me what this is. Thanks.

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post #2 of (permalink) Old 02-14-2001, 04:49 PM
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Re: altitude compensator on mc2150

I think your describing the carbs bowl, and bowl vent.

what is an 85 ltd with a 3.8V6? oh I get it now, a Ford car.

the compensator is not a big deal, its behind the carb on the bottom area, looks like a cylinder sticking out with a wire or hose, I havent seen one in years, might not be obvious unless youve got it right next to a 2100



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post #3 of (permalink) Old 02-14-2001, 05:09 PM
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Re: altitude compensator on mc2150

[img]/wwwthreads_images/icons/laugh.gif[/img] Oz........I would hate to admit how much time I spent poring over the carb section in the Jeep Manual trying to figure out what had four screws and a connection........never thought it would be THE BOWL..[img]/wwwthreads_images/icons/blush.gif[/img][img]/wwwthreads_images/icons/crazy.gif[/img] I was going to go look on the CJ, but well, there's a lot of SNOW out there[img]/wwwthreads_images/icons/crazy.gif[/img]. I know on our 2150 the aneroid is in the back....sticks out an inch and a half or so....and has a slotted screw for some kind of adjustment.[img]/wwwthreads_images/icons/crazy.gif[/img] Actually, these MC carbs are not too bad. They overcome about 80% of the deficiencies inherent in the basic carburetor concept; not the least of which is that the fuel to air ratio is not linear as the airflow goes from min to max. Ford has used some carbs in the past which can only be described as a NIGHTMARE, and I'm visualizing the Holly Centriflo as a prime example. They claim that the 2150 is the "Poor Man's Fuel Injection" and from all indications, that isn't far from the truth.[img]/wwwthreads_images/icons/smile.gif[/img]

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post #4 of (permalink) Old 02-14-2001, 05:12 PM
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Re: altitude compensator on mc2150

righto Dave,

being where I am, the small littel Ozark mountain range, I dont need the altitiude compensation, the 2100/2150 carbs are great carbs for cheap reliability, and off camber stuff, but I will say they dont compare with a Holley 2 bbl for driveability or power.



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