How to install a Holley Carburetor
1) Remove the Air Cleaner (Detach and note any vacuum line connections to the Air Cleaner).
Take Pictures if you have a camera in your cell phone
2) Detach the fuel Line(s) and wrap the exposed end(s) with clean lint-free cloth to avoid foreign particle contamination.
3) Disconnect and Tag all vacuum hoses (and their locations on the carburetor) Again a camera is nice for this step along with the Tags.
4) Disconnect and remove any throttle linkage to the carb. If the vehicle has a Auto Trans disconnect the appropriate linkage for that trans.
5) Save any and all special clips, brackets, etc if you are changing to a different model carburetor.
6) Disconnect and remove the Choke Cable (if necessary) or the Choke Heat Pipes. Disconnect the Choke Electrical Wires.
7) Remove and save the Carb Retention Nuts (or other fasteners).
8) Vacuum any dirt or debris from the intake manifold /carb before removing the carb from the engine.
9) Clean the Carb gasket Surface on the baseplate. Clean the Intake manifold surface. Cover the Intake opening with a clean cloth.
10) R&R Carb Gaskets and inspect internal parts of the carb for contamination. Install fresh gaskets and the Fuel Bowl Screws
10a) Prior to installing the Bowls Trim the Orange Fuel Bowl Check Valve Stems to just above the "Nub". Torque the Fuel Bowl Screws to 25-30 INCH Pounds.
11) Check the Accelerator Pump Linkage for proper adjustment. There should be .015-.050" ADDITIONAL travel of the pump at WOT.
There should be NO clearance between the Pump Cam, Pump Arm, or the "Rocker Arm" on the bowl at idle.
12) Remove the cloth over the Intake Manifold, Inspect for any dirt, etc. Install the proper Carb Gasket and tighten the carb nuts to 60 to 80 INCH pounds. Tighten in a criss-cross pattern.
13) Reconnect all vacuum line in their proper location
14) Reconnect all electrical connections in their proper locations.
15) Check Choke Linkage for proper opening and high cam function.
16) Reinstall Fuel Line(s) to the carburetor.
17) Add fuel to carb by either remote fuel pump or by squirting fuel into the bowl vent tubes and verifying fuel level is correct on the fuel bowls.
18) Many Holley carbs have fuel bowls with a different height sight plug on the front carb bowl vs the rear carb bowl.
Rear bowl sight plug is .250" LOWER.
So there are the Proper Holley Steps to Remove/ install a carburetor.
Tom V.
__________________
"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
|