Carb Rebuild - As easy as it looks?

[Justin B.]

I had a wild idea of fabbing up an intake manifold and mounting a single Weber 2bbl carb right about where the airbox currently sits.  I had somebody talk me out of it as they made a convincing argument that the runner length would be too long and low-speed response would be something awful.  I just remember going from twin SU carbs to a single Weber on my MGBs made a dramatic difference to the good.

[MrRiden]

The Bing rebuild is not too difficult as long as you pay close attention and read a few how-tos before hand. I've not seen mentioned above the use of a nice thin smear of silicone grease on the O rings but it is just an added touch I like to use.
  For those of ya all who might be thinkin 'bout using different carbs I once saw a setup using a floatless unit with a "tuned" venturi called a "lake injector". Really sexy lookin' but I really don't know how they ran. Anyone ever see / use them?
rich

[Justin B.]

Was that that variable venturi "Dresserator" that Dresser Industries played with about 30 years ago?

[VaSteve]

Ok, was able to do enough of this without too much trouble.  Unfortunately 28 years of hamfisted mechanics or DIYers made it more difficult.  I could only get one of the choke covers off because the screws were all stripped out on the other.  I found the the gasket wasn't in there, so I didn't replace it - after the lesson learned with the oil filter kit and the gasket, if it comes apart without it, it's not getting a new one!

I couldn't get the butterfly off because the screws were going to strip.  

So about all I could really do was spray more carb cleaner all over the parts I could get off and replace the diaphragm and the O rings on the bottom side.  Good enough, I know this was rebuilt just before I bought it in 06 and I cleaned it up real good at one point.  

Too dark to see if there was any improvement, but I really need to put stabilizer in this coming winter.  That surging business sucks.

[Justin B.]

Steve, this is one place that you GOTTA HAVE a gasket, regardless of how you found it.  You will most likely have to drill the heads off the screws and replace with new but be verrrry careful (no, not hunting wabbits).  The enricher circuit is really almost like a min-carb inside your main carb and hard telling what might be caused by an air-leak in this spot.

The "butterfly" has to have the "peened" ends of the screw either filed or ground off before safe removal can be accomplished.  Hey, that's why the ends are peened in the first place!  

[MrRiden]

Ditto to what Justin posted. No gasket = problem. As for grinding those little butterfly screws, Harbor Freight has a Dermmel like tool for less than $10. A needle file will also do the job.
rich
http://www.harborfreightusa.com/usa/itemdisplay/displayItem.do?itemid=41695