Holley 1920 carburetor problem
Dan Jones
I have a 1971 Dodge Dart with a 225 Slant Six engine and the above
carburetor (pity me!). My problem is that the car hesitates and sometimes
dies on acceleration. I know that it's the carburetor because I have bought
around 3 rebuilt carburetors. Some solve this problem, but they all have
other problems. I have also rebuilt the carburetor myself around 3 times,
without solving the problem. A NEW Holley 1920 isn't available.
I have a feeling that this problem involves some part of the carburetor
which isn't touched by the normal factory rebuilding procedures or kits.
Does anybody have any ideas? Please reply by email as well.
Thanks,
Dan Jones
Tim
Dan Jones <dan_...@mail.utexas.edu> wrote in article
<6387kr$cf8$1...@geraldo.cc.utexas.edu>...
My guess would be clogged up internal passages. Some of these can be next
to impossible to get at, but with some creativity you can usually find a
way to poke wire thru or even Dremel out a plug for better access. They had
to drill those passages somehow when they made the thing. Carbs that sit
around with gas in them get a white crystalline deposit that can completely
block passages. You get a hint of it in the bottom of fuel bowls. There are
also carb cleaners that come by the gallon so you can soak the whole body,
but I haven't tried any of those 'cuz I don't need it often enuf.
By the way, just blowing air thru isn't enuf. It can appear to be clear but
still be 3/4 clogged to liquid.
Good luck
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The Skinners
These 1920s are a troublesome carb. Many club members have problems
with them. I have had good luck by switching from the Holley to a
Carter. All you have to change is part of the fuel line and PCV hose.
Joshua Skinner
Slant 6 Club of America
The Skinners
Steve Lacker
LeRay Stone wrote:
>
> I had the same problem on my 73 Charger 318 2bl. I went thru 3 rebuilds
> and no help so I bought a new one and it fixed the problem. The problem
> (according to a carb specialist) was the 2bl carbs that were rebuilt had
> out of a out of round accelerator pump holes (this carb type) so the
> accelerator pump was not working right.
I think the Holley 1-bbl in question uses a diaphragm-type acclerator
pump rather than the piston-type pump your 2-bbl Carter BBD from a 73
318 would use. Therefore, the warped pump bore doesn't apply. Still, I
agree its a faulty rebuild.
--
Stephen Lacker
Applied Research Laboratories, The University of Texas at Austin
PO Box 8029, Austin TX 78713-8029
512-835-3286 sla...@arlut.utexxas.edu (Remove the extra 'x' to mail me)