Carburetor Upkeep for a 1960s Chevy Nova

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I labored on my 1966 Chevrolet Nova II. I lately changed the gas pump (mechanical), all of the filters, all of the spark plugs and all of the liquids. I've additionally tried adjusting the idle combination and idle velocity screws on the carburetor.

Sadly, the automobile nonetheless stalls generally whereas making an attempt to speed up or brake shortly. Might it’s that the carburetor wants a greater tuning? Or perhaps it must be utterly rebuilt and cleaned up?

Any remark can be drastically appreciated. – Peter

If you’ll find a brand new carburetor for this automobile, purchase it, Peter. In reality, purchase two and save one for 2029 as a result of it appears like you could have two carb issues.

If the engine stumbles or slows down in acceleration, it’s in all probability a nasty accelerator pump. This is able to trigger a scarcity of gas at first of an entire cease. And for those who brake all of a sudden whenever you brake all of a sudden, it may simply be a nasty carburetor float, which turns into porous, is submerged and causes a flood and blockage.

You possibly can disassemble it, clear it up and exchange the pump for acceleration. and the float, the carburetors are notoriously tough. It's not simply a number of exhausting work with a number of small elements, but it surely's perhaps a type of works the place you could have items left over on the finish and it’s a must to surprise in the event that they had been necessary ( trace: they had been).

It's a lot simpler to only exchange the carburetor and I can assure you that it’s going to remedy each issues. Should you search on-line, you might be able to discover a new authentic Rochester carburetor for this automobile. They had been a penny a dozen. In case you have bother discovering one, or if it's too costly, a refurbished carburetor by professionals can be virtually nearly as good.

And if you cannot discover any, you should purchase an aftermarket carburetor for this automobile from an organization like Holley. This is able to in all probability require that you simply additionally change the consumption manifold.

So, relying in your ability stage in mechanics, you may want one thing performed by a mechanic. Or, if in case you have sufficient trip days and bandages, you possibly can remedy it your self. Good luck, Peter.

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