
Problem: I recently noticed a crack in the pipe of my Mazda air purifier.
Although the car seems to run well, I have recently tried to cover the cracks with tape;
The tape was loose a few days later.
How important is the pipeline? --B. B.
A: These are called carburetor-
They are important for fuel economy, emissions control, and performance.
Pipes tend to deteriorate, usually with cracks or holes after three or four years.
These pipes are designed to provide the carburetor with air heated to a specific temperature.
If the preheater pipe leaks, the air entering the carburetor will be too cold, resulting in power loss and an increase in emissions.
Leakage in fresh air
The air duct also affects the air temperature, because the air inside the hood that will be sucked into the carburetor is usually much warmer than the air sucked in from the grille, where the air inlet is usually located.
These pipes are easily replaced. Auto-
Parts stores now offer alternatives for most cars.
Replacement is definitely better than your tape because the tape is not designed for a hot, greasy environment.
Q: I own a 1987 Ford Aerostar mini van.
So far, it is still a working horse, despite the decoration falling off.
I tried to change V-6 engine.
I can only change the plug on the driver's side because there is no way to go to the plug on the other side.
Is there any special tool or does the engine have to be put down in order to get the plug out? --L. S. A.
A: While the engine is getting harder and harder to work, fortunately, you can still replace the spark plug without removing the vehicle.
Like most modern cars, there is little extra space in the Aerostar engine compartment.
So you need to remove the air-
Air inlet pipe from air purifier to fuel-
Injection manifold.
In addition, you need to use a socket wrench with a universal joint
Type socket for the correct size of spark plug.
You could probably go through a generic-
The Connector Attachment that will be inserted into the socket.
Q: I have a Grand Prix 1976 Pontiac.
When the motor is cold, it starts.
I have to keep the pedal on the floor to start when the motor is hot.
I think I can run five to six miles a gallon.
What do you think is the problem? --G. P.
A: You have choking that is stuck or has A serious failure.
When the engine gets cold, the choke works by limiting the flow of air to the carburetor, causing the air to move faster and pick up more gasoline.
When the engine is cold, the choke that is stuck and closed is working fine.
Once the engine reaches the operating temperature, the problem arises.
If the choke is turned off all the time, the engine will get too much gas, which means that your gas mileage is not good.
The choke on the old car is a very simple device that operates with a heat-sensitive spring.
The choke begins to open when the engine reaches a certain temperature.
When the air filter is removed, the throttle is visible inside the carburetor and should be turned on when the engine is overheating.
Your mechanic should be able to determine if the choke is working properly.
Ralph Vartabedian can't reply to the email in person, but will answer questions about cars that are of interest to everyone in this column.
Don't call.
Write to your wheel, your part, Times Square, Los Angeles 90053.