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#1
04-29-2002, 03:21 PM
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Anyone know where I can get a good diagram or schematic of the Rochester for this year. The carb I have is supposedly a 69. CHoke rod is straight now and I need to adjust from fully closed where it's at now. Secondary rod looks wrong, idle cam doesnt seem right either for that matter. Maybe a new one is the way to go, but that's a few checks from now! JONJ
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#2
04-29-2002, 03:21 PM
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Anyone know where I can get a good diagram or schematic of the Rochester for this year. The carb I have is supposedly a 69. CHoke rod is straight now and I need to adjust from fully closed where it's at now. Secondary rod looks wrong, idle cam doesnt seem right either for that matter. Maybe a new one is the way to go, but that's a few checks from now! JONJ
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#3
04-29-2002, 03:35 PM
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One of the interesting problems concerning Rochester carburetors is the lack of exact diagrams for any specific carburetors. Rochester just printed "typical" views.
However, one item in your post suggested something to check. Both the 1969 and 1970 Q-Jets have divorced (manifold mounted) chokes. The factory specified a mounting gasket of a finite thickness to be placed between the carburetor and the intake manifold. If the thickness of the gasket is changed (generic repair kit, aftermarket performance gasket, adapter plate, etc.) adjustment (or possible replacement) of the choke rod will be necessary. Jon.
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"Good carburetion is fuelish hot air".  "The most expensive carburetor is the wrong one given to you by your neighbor". If you truly believe that "one size fits all" try walking a mile in your spouse's shoes! Owner of The Carburetor Shop, LLC (of Missouri). Current caretaker of the remains of Stromberg Caburetor, and custodian of the existing Carter and Kingston carburetor drawings. |
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#4
04-29-2002, 06:21 PM
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Thanks. It does have a divorced choke with a huge loop in that lower rod from the manifold which looks like it hasnt been tampered with and the whole choke mechanism is shiny new from manifold to connecting pin. Could very well have a different size gasket to the manifold. Seems the adjustment I would need to make in the upper choke plate rod would have to be pretty large.
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