- Float Circuit Carter TQ
- Secondary Circuit Carter TQ
- Choke System Carter TQ
- Metering Rods & Jets Carter TQ
- Accelerator Circuit Carter TQ
- Troubleshooting Carter TQ
- Adjustments Carter TQ
- Identification Carter TQ
- Idle Circuit Thermoquad
- Venting Thermoquad
- Specifications Thermoquad
- Thermoquad Well Plugs
IDENTIFICATION
Carter Thermoquad (TQ) carburetors use a standard Carter carburetor number in a xxxxS format (ie 6144S, 9053S). The number can be found stamped on the mounting flange face. Some numbers will have a suffix of "SA, SB, SC, or SD. For rebuild kits the second letter does not matter.
Numbers that start with a X- are casting numbers and won't cross to a rebuild kit or parts (ie 6-2124, 1-, 0-)
6-2124 is not on the listGlue the inserts using: plastic steel made by Devcon
OVERVIEW
The Carter Thermoquad has three main parts
- Air horn houses choke valve, air valve for secondaries, fuel inlet system (two floats and needle valves), accelerating pump system, primary boost venturis, vacuum controlled step-up piston, metering rods, and low and high speed fuel metering system
- Main body houses primary jets and is constructed of phenolic resin for cooler fuel temperatures
- Throttle body houses throttle valves and linkage
All TQ carburetors installed on vehicles equipped with an EGR system have a venturi vacuum port on the side of the carburetor. This is the only vacuum port located in the main body. All other vacuum pickup points are located in the throttle body.
Typical Carter TQ:
