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Holley 1920 issues
https://slantsix.org/forum/viewtopic.php?t=63352		 Page 1 of 1
Author:  jfleming64dart [ Wed Feb 27, 2019 2:40 pm ]
Post subject:  Holley 1920 issues
Hello all,
I recently purchased a 73 Dart, and it wasn't running right. I rebuilt the carb, which seemed very clean inside, being sure to blow out every passage with carb cleaner. I stretched the accelerator pump spring to make sure it had a good strong push. My issue is that something seems to be intermittently obstructing the accelerator pump outlet. It pulls back fine, and then you open the throttle/ release the pump and it absolutely crawls back in. And its not the spring. It goes so slow I have time to press on the pump and i cant even push it in faster. Oddly though, this issue seems heat related. When stone cold, I usually get a few pumps before it locks back up again. Any suggestions?

Thanks
Author:  jfleming64dart [ Thu Feb 28, 2019 7:40 am ]
Post subject:  Re: Holley 1920 issues
Well I fixed my own problem but rather than deleting this I’ll leave a remark for anyone else with this issue. It was probably debris of some kind. I sprayed carb cleaner in the two holes in the throat as described by Dan on various threads. And that didn’t make much difference (though I feel it was important to get the cleaner in there). So then out of frustration I tried just beating the top of the carb with a wrench and surprisingly enough that worked. Everything is freed up and the accelerator pump is pumping as it should.
Author:  Louise76 [ Fri Mar 01, 2019 9:27 am ]
Post subject:  Re: Holley 1920 issues
Thanks for sharing "what worked". As the psychiatrists say, that gives us "closure". And on this site, many of us need psychiatric help! :)
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