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Missing vacuum
https://slantsix.org/forum/viewtopic.php?t=34381
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Author:  Reed [ Thu Mar 19, 2009 4:29 pm ]
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Really? Thanks Dan! I didn't know that. I do remember the choke on my 64 Signet I used to own was the standard bi-metallic spring/choke diaphragm setup I described. Huh, learn something every day.

Author:  SlantSixDan [ Thu Mar 19, 2009 6:49 pm ]
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See this thread, and you can also see the pull-off piston housing on the external view of the 1963-only Stromberg W carburetor (2nd picture, "choke piston housing").

Author:  Reed [ Thu Mar 19, 2009 7:16 pm ]
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Weird, but cool. Thanks for the links! 8)

Author:  THOR [ Thu Mar 19, 2009 8:09 pm ]
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If all that checks out, the carb gets/is adjusted correctly, and there are no vacuum leaks, there is a definite possibility of a slack/incorrectly installed timing chain. The symptoms may or may not be present that are indicative of anything in particular, since the car isn't driven ATM. I had this very same issue on my '71, and that thing would fry tires! :shock:

I replaced the chain, and started pulling 22" hg @ idle instead of 10". Other than the low vacuum and poor mileage, that car actually ran pretty well. Suddenly my mileage went from 10 in town to 18... hmm... :D

~THOR~

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