What causes a choke on a 350 cubic engine?
If the carburetor is adjusted properly and the choke is functioning, the problem may stem from the distributor. Underneath the 350’s distributor cap are nine metal contacts. One contact is for the coil wire, and the remaining eight are for the 350’s eight cylinders.
Where does the power come from on a 350 cubic engine?
Underneath the 350’s distributor cap are nine metal contacts. One contact is for the coil wire, and the remaining eight are for the 350’s eight cylinders. Electrical current enters the distributor from the coil at the top of the distributor cap and is then sent to each of the eight cylinder contacts individually.
How does the carburetor work on a Chevy 350?
The carburetor delivers the air/fuel mixture to the engine, and the distributor ignites that mixture within the cylinders. Thankfully, because both of these components are on top of Chevrolet’s 350 small-block engine, checking them is quite easy.
What causes a backfiring exhaust on a Chevy 350?
Thankfully, because both of these components are on top of Chevrolet’s 350 small-block engine, checking them is quite easy. Backfiring is typically caused by an air/fuel mixture that is too lean, meaning the mixture has too much oxygen in it.
How to put spark plug wires in the correct firing order?
Compare the spark plug wires to the manual’s firing order and make sure each wire is attached to the correct distributor terminal. If engine backfires or runs rough, turn off engine and verify the wires are connected correctly.
What happens when you mix up the spark plug wire?
Your car coughs and jerks down the road after an amateur spark plug change–chances are you mixed up the spark plug wires. The “firing order” of the spark plugs refers to the order in which the distributor sends electricity to the spark plug. If the spark plug works, it sparks when it receives electricity.
What causes a spark plug to jump to the ground?
Heat damage – Engine heat can burn wire insulation and boots. A damaged boot can impede proper spark plug wire seating and performance. Wire insulation that’s damaged by head can allow voltage to jump to the ground rather than jumping the gap at the bottom of the spark plug.
Where do you connect the spark plug wire?
The cylinders are numbered and oriented differently depending on the make of the vehicle. Connect a spark plug wire between the number one cylinder and the distributor’s number one terminal.