How do you install a bypass pulley on an AC compressor?

Then remove the compressor drive belt. Remove the compressor, but keep the mounting bolts. Place the bypass pulley in place of the compressor and install the bolts to the proper torque. Re-install the compressor belt and tension properly.

What happens if your AC compressor pulley fails?

Screeching, squealing, or grinding noises may be heard under the hood of the vehicle while the engine is running. If the pulley seizes, your serpentine belt may break soon after. What are the Consequences of AC Compressor Bypass Pulley Failure?

How do you remove an AC pulley line?

Follow the lines back to their other connecting point and remove them with the line wrench set. Locate the mounting bolts for the AC compressor and loosen them with the socket and ratchet set. Support the AC compressor with one hand and remove the mounting bolts by hand. Set the old AC compressor aside.

Do you need to change the serpentine belt on a Pep Boys compressor?

To bypass or remove the factory AC system, the bypass pulley is installed in place of the factory compressor. You may not even need to change your serpentine belt, but Pep Boys recommends replacing it if you don’t know the last time it was changed. Alternately, you may need to purchase an AC compressor bypass belt sized to fit your engine.

Can a bypass pulley be installed on an AC compressor?

AC compressors are expensive and difficult to replace on some vehicles. On some older vehicles, factory AC compressors are unavailable. In these instances, you may want to consider installing a bypass pulley kit. Installing an AC bypass pulley is considered a high-performance modification.

How do you remove lines from AC compressor?

Locate the two lines that connect into the AC compressor and remove them with the line wrench set. Follow the lines back to their other connecting point and remove them with the line wrench set. Locate the mounting bolts for the AC compressor and loosen them with the socket and ratchet set.

Can you replace the a / C bypass belt without tools?

Replacing the belt is easy. I can actually do it without any tools, although the “prescribed method” is to use a wrench to release pressure on the tension pulley (#7 on the diagram linked below). You can definitely use the A/C bypass belt permanently. Note that in the diagram, you will have the bottom setup (i.e. with A/C).

Where does the bypass belt go on a Mercedes Benz?

The bypass belt will go straight from the crank pulley (#1) to the power steering pump (#3). It will just clear the top of the A/C compressor pulley (#2). As for replacing the compressor, If it’s actually the compressor pump that is the problem, you will have to recharge the system because removing the compressor does open it.

Is there an emergency AC compressor bypass tip?

Emergency AC compressor bypass tip! Vogon constructor fleet. A couple of weeks ago, the AC compressor clutch on my wife’s ’04 C240 shattered and took the belt along with it. I was planning to get around to R&R’ing the compressor this weekend but a package arrived yesterday with the wrong compressor (7SEU16 vs. 7SEU17C.)

What should I do if my air compressor is not working?

1. Loose pulley, flywheel, belt, belt guard, cooler, clamps or accessories. Tighten any loose ends. 2. Lack of oil in crankcase. Replenish the oil level. 3. Piston hitting the valve plate. Remove the compressor cylinder head and inspect for foreign matter on top of the piston.

Can a low pressure switch cause a compressor to go off?

Put the AC on MAX before checking the compressor. Before starting the next step of diagnosis, you should know that a low-pressure switch can create problems with the compressor clutch’s relay in some car models. The system’s computer keeps the relay grounded but it can go on and off due to the bad switch.

Why is the pulley on my AC compressor not working?

Check the front side of the clutch to examine its condition. Also, find out whether the clutch and the pulley are spinning. If only the pulley is rotating, the compressor clutch is having an issue, which could be stemming from several sources – a blown fuse, bad clutch oil, low-pressure lockout, or an open wire in the oil.

When to use an AC compressor bypass pulley?

If your AC compressor is shot and you don’t want to put big money into fixing the AC system, an AC compressor bypass pulley is the best way to deal with the issue. If there’s any refrigerant in the system, you must have it professionally removed and recycled.

What to do if your AC compressor is not engaging?

If the clutch is engaging, then it’s time to check the system pressure. You can use the gages that come attached to your refill bottle purchased at WalMart of and auto parts store. Find the low pressure service port which is against the firewall, passenger side, connected to the AC dryer/accumulator can.

What’s the low side psi of an AC compressor?

Low side PSI at say 75 degrees would be around 35 PSI. Believe your switch has failed. It unscrews and another screws in, a shrader valve stops loss of refrig coolant. Wear protective PPE ‘anyway for your eyes. High side PSI of around 180 PSI. Some running down the highway might read 220 PSI.

How do you install a bypass pulley on an AC compressor?