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| I.D.-ing a carb https://slantsix.org/forum/viewtopic.php?t=56339 |
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| Author: | InclinedBlockHead [ Tue Oct 07, 2014 8:16 am ] |
| Post subject: | I.D.-ing a carb |
My 1970 Dart has a carburetor I don't recognize. I got a box of parts with the car, including a Holley 1920 carb and manifold, The one on the car has four bolts holding the carb to the manifold and the original has only two, The air cleaner on the car says Super 6 on it but I haven't found any information on it, Any ideas? |
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| Author: | Reed [ Tue Oct 07, 2014 8:42 am ] |
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Someone has installed a factory two barrel carb package on the car, known as the "Super Six." See here: http://www.slantsix.org/articles/supersix/article.htm The carb could be a Carter BBD or a Holley 2280. |
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| Author: | InclinedBlockHead [ Tue Oct 07, 2014 9:58 am ] |
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Thanks for the link! This is fantastic! Just the information I was looking for. The exhaust manifold is cracked at the heat riser and sounds terrible and I am trying to find out if it is causing drivability issues, like stumbling, hesitation, lack of power, etc. Now I know what kind of carb setup I am looking at, at least! Thanks! |
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| Author: | Reed [ Tue Oct 07, 2014 10:06 am ] |
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Quote: The exhaust manifold is cracked at the heat riser and sounds terrible and I am trying to find out if it is causing drivability issues, like stumbling, hesitation, lack of power, etc.
No. A cracked exhaust manifold will be noisy and stinky, but won't cause the driveability problems you have mentioned.Stumbling, hesistattion, and lack of power can be cause by a number of different and/or interrelated issues. Because you know that the intake manifold has been swapped, I would start by suspecting an intake manifold leak. You have to address the exhaust leak anyway, so I highly recommend you pull the manifolds and remount them as described here: http://www.slantsix.org/articles/manifo ... unting.htm Once you get the manifolds reinstalled with no vacuum or exhaust leaks, you can test drive the car and then troubleshoot any further problems. Common causes for the problems you describe are vacuum leaks, non-functioning vacuum advance in the distirbutor, faulty or misadjusted accelerator pump in the carb, misadjusted metering rods on a BBD, improper mixture settings on the carb, misadjusted kickdown linkage on the transmission, and there are more. |
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| Author: | InclinedBlockHead [ Tue Oct 07, 2014 10:16 pm ] |
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I found someone locally with an exhaust manifold in good condition. Now I am wondering if it is an early version, should I be concerned about the choke pocket compatibility? An electric or even a manual choke is fine with me. I didn't realize that the Super Six was such a unique animal! Thanks. |
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| Author: | Pierre [ Tue Oct 07, 2014 10:58 pm ] |
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On top of your choke concerns - make sure the manifold is straight. They often warp so that the runners on the end are higher/lower then the rest. Bad enough to the point that once removed from a head you won't be able to reinstall because the holes on the 1/6 runners for the studs won't line up. You can get new offshore exhaust manifolds on ebay for less then $100 shipped - they use the late model sealed type choke well. I recall a few here used them with good luck. |
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| Author: | InclinedBlockHead [ Wed Oct 08, 2014 10:41 am ] |
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How do I further identify if its a Carter or a Holley? I don't see any obvious markings? Thanks in advance! |
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| Author: | Reed [ Wed Oct 08, 2014 10:44 am ] |
| Post subject: | |
The manufacturer of the carburetor usually casts their name on the side of the float bowl. Plus, if you look at the pictures in the Super Six article you will see that there are obvious and plainly visible differences in the appearance of the Carter BBD and the Holley 2280. 
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| Author: | InclinedBlockHead [ Wed Oct 08, 2014 11:49 am ] |
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Thank you! My Haynes book doesn't cover the Super Sixes. I now know that I am looking at the BBD! |
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| Author: | Reed [ Wed Oct 08, 2014 11:57 am ] |
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The Haynes book is really not the ideal shop manual for your car. You should get a factory service manual both for your car and for a vehicle that woudl have been equipped with a Super Six package. |
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| Author: | oldskoolracer [ Wed Oct 08, 2014 12:50 pm ] |
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Welcome aboard! You definately came to the right place to find what you need be it parts, advice, or flat out help and information! Just scroll on through the threads here and you will find ALOT on the BBD, a couple very recent articles were started by me and the folks here filled them with tons of helpful info and advice! Ill be happy to help in any way, I just went through alot on mine getting it right so the knowledge is still pretty fresh lol... There is a great link in the FAQs specifically on the BBD, best thing is just print it out and give it a good read. Then once you feel comfortable witht he way the carb works, get a kit and give it a good going through. Definately get that manifold taken care of and as others have said make sure they are flat and re-installed with the proper hardware. Most importantly, HAVE FUN! Im sure you will enjoy the slant just as much as the rest of us and that super six set up will leave you very happy once all the bugs get worked out 
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| Author: | InclinedBlockHead [ Sat Oct 11, 2014 3:53 pm ] |
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thanks, Oldschoolracer. I couldn't find anything in the FAQs regarding BBD carbs...do you have a link? Thanks! |
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| Author: | oldskoolracer [ Sat Oct 11, 2014 4:27 pm ] |
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https://app.box.com/s/15dt5qav20ccxcnzp9e4 Here ya go, if the link doesnt work directly, once your in the engine forum towards the top, click the "frequently asked questions (FAQ), then just a short way down the page will be "carburetor operation and repair information", then the first choice is the BBD carb manual, just click and read or save/download... |
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| Author: | InclinedBlockHead [ Sat Oct 11, 2014 5:51 pm ] |
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This is excellent! Thank you so much! |
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