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#1 |
Senior Member
![]() Join Date: Mar 2019
Location: Herculaneum MO (20 minutes south of St. Louis
Posts: 619
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Rochester 1bbl accelerator pump orifice size?
I have a 67 C20 with 250. The orifice for the accelerator pump is solidly clogged. I was wondering if anyone knows what size this orifice is supposed to be, so I can run a drill through it? Thanks in advance for any help
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67 C10 283 T5 swapped longbed fleetside = wife's daily driver 67 C20 292 (originally a 250)4speed longbed fleetside w/original wooden bed=my project truck 67 C10 283+.060 (so a 292 as well)T5 swapped longbed fleetside=my DD 72 C1500 Sierra Grande 350 TH350 longbed fleetside=wife's fair weather truck Can you tell we are fans of longbed fleetsides & 67s Chris |
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#2 |
Senior Member
![]() Join Date: Apr 2013
Location: Podunk, Texas
Posts: 748
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Re: Rochester 1bbl accelerator pump orifice size?
Clogged with what? I think I would look for a benign chemical solution rather than drill it - those Black Forest elves that make carburetors are real picky about orifice diameters....
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"It is hard to search for a black cat in a dark room, particularly if it is not there. Especially if this cat is smart, brave, and polite." Sergei Shoigu, Russian Minister of Defense |
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