All base, body and air horns are stamped prior to disassembly to ensure units are reassembled with the
proper “companion” parts. Internal parts such as jets and metering rods are identified, to ensure they
remain with the original castings, where variations may have occurred at the manufacturing level. This process ensures
that original flow characteristics are maintained.
After disassembly all parts are inspected and cleaned in
industrial equipment. Internal parts such as gaskets, needle and seats and plunger cups are discarded. All white metal
castings are chemically processed to restore the factory finish. All aluminium castings are sandblasted or tumbler
processed to restore the finish. Bases are surfaced to ensure proper mating with the body assembly and the manifold.
Mounting holes are refaced to assure proper torque of mounting fasteners.
During the sub-assembly process
all threads, inlets and vacuum pipes are inspected and repaired or replaced if necessary. Throttle and choke plates
are inspected and replaced if not serviceable. Throttle bushings are installed wherever throttle shaft play is not within
tolerances. Completed base assemblies are checked for vacuum integrity. Any base that does not meet specifications
must be repaired prior to use.
Throughout the assembly process all body and calibration components are reassembled
to the original unit to maintain product calibration. All assembly components are tested prior to product assembly.
Completed product is flow tested throughout all ranges of operation to ensure proper calibration. Choke adjustment,
idle speed and air-screw settings are made during product testing. This process allows the technician to start the vehicle
upon product installation. Final adjustments may be necessary due to varied engine condition.
All Autoline
Carburetors are heat shrink packaged with installation instructions, mounting gaskets and specific technical bulletins.
Important Install Notices:
Choke Cover: Due to various manufacturer designs of choke covers, this part may not have the proper connectors
for the vehicle application. If this occurs it is recommended that the choke cover from the old carburetor be used.
Continuity Test: The thermostatic electric choke cover cannot be checked for continuity unless it is first heated above
110 degrees Fahrenheit (through its closing temperature range). This is because the internal temperature sensitive switch will be
either open or closed between 60 degrees Fahrenheit and 110 degrees Fahrenheit depending on the most recent temperature extreme
to which the cover is exposed. A previously heated switch, above 110 degrees Fahrenheit in the closed mode upon cooling, will not
open until it reaches approximately 60 degrees Fahrenheit conversely, a previously cooled switch, below 60 degrees Fahrenheit in the
open mode, upon heating above the open point 60 degrees Fahrenheit will not close until it reaches approximately 110 degrees Fahrenheit.
Therefore when testing choke cover electrical continuity between these temperatures, you must know which side of the heating / cooling
cycle mode the switch is in.
Prevent Carburetor Flooding / Premature Failure!
Avoid fuel blends containing high levels of ethanol. Refer to your Owners Manual for fuel requirements.
Ethanol may loosen and dislodge debris from the fuel tank, fuel lines and other fuel system components not originally designed for ethanol mixtures.
Always replace the Fuel Filter and flush the fuel lines when replacing or servicing the carburetor.
Dirt and debris from unfiltered fuel can catch between the inlet valve and seat, leading to flooding.
Consider adding Fuel Stabilizer to the fuel tank if the vehicle won't be driven for extended periods of time.
Fuel stabilizer prevents gas from evaporating and/or forming sticky resins that can clog the carburetor.
If you are having trouble choosing the correct AutoLine part, or experiencing issues during or after installation of this part, AutoLine's ASE Certified Technicians are available to help answer your questions.
Attention California Customers - Warning: This product can expose you to chemicals including lead and mineral oils which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov
Prevent Carburetor Flooding / Premature Failure!
Additional Resources
Autoline Technical Support