Posts Tagged ‘Carburetor’

Fuel Bowl Control

Monday, December 19th, 2011

Here are the lock screw and adjustment nut with instructions.

The process of carburetion starts at the bowl where fuel arrives at the needle and seat. The needle’s cone-shaped top presses against the matching seat in the housing to limit the amount of fuel that enters. The float located inside of the bowl rides on the fuel like a boat and raises or lowers the needle based on the level. This is why proper float adjustment is crucial. If the float is adjusted to ride too high, the excess fuel will find its way to the vent tube and into your engine unatomized, causing the engine to run poorly or stall. If the float level is set too low, you can starve your engine of fuel, causing it to lean out or stumble. (more…)

Upgrading Your Existing Carburetor

Thursday, August 18th, 2011

Where to Spend Your Money First 

In past “Carburetor Classes” we discussed individual carburetor components and how they work. But of all the components which are the most critical to going fast or being consistent? All of the lessons about how a carburetor works in theory are useless without practice. Now we will address where on your carburetor you should spend money first. (more…)

Carburetor Class

Monday, June 13th, 2011

Rebuilding Tips and Things to Watch For

We here at Quick Fuel Technology think it’s safe to say most gearheads have had carburetor troubles at some point in their life. The questions are: Am I experienced enough to isolate the problem and fix it? Do I give up and purchase a different carburetor? Do I completely rebuild the carburetor in hopes of experiencing an increase in performance? All of these are viable options to a problem, and there are many opinions on the best way to alleviate carburetor problems. Keep in mind, in many cases a carburetor just needs to be freshened up. (more…)

The Four-Barrel Chronicles

Wednesday, June 1st, 2011

More Carburetor Mysteries Solved, Part II

Appearance Vs. Reality

Changing priorities during the 1970s and ‘80s combined with the EPA’s grand and glorious entrance into the automobile business, made fuel distribution especially important.  It is for this reason that some carburetors, which were used both as original equipment and for aftermarket replacement, differ even though they share the same model designation. New car emissions standards may have dictated internal changes not required on performance-type replacement carburetors produced during the same time period. (more…)

Carburetor Basic Training

Thursday, March 3rd, 2011

Chapter One of a Three Part Series

If you’re new to drag racing, it may seem odd that some engines are equipped with carburetors. If you’ve been racing for years, it probably seems odd that some aren’t. In either case, carburetor operation may be a bit of a mystery. (more…)