What tool do you use to unscrew a tensioner pulley?

OVERVIEW. Most vehicles utilize a serpentine accessory belt, which powers items such as your power steering pump and alternator. The CRAFTSMAN® Serpentine Belt Tool provides the leverage and clearance needed to remove the tensioner pulley that holds the belt in place.

What size is the bolt for the serpentine belt tensioner?

Answering my own question, the size of the bolt on the side of the tensioner is 30mm. I did end up using the method above to release the tension but if you need to do it by yourself you may need a wrench on it.

What is a tensioner tool?

Responsible for removing your serpentine belt’s tensioner pulley, the tool works to position idler pulleys and reset belts to the correct amount of tension.

How do you remove the pulley on a belt tensioner?

Put a socket on the bolt and turn the bolt counterclockwise to break it loose. If it will not break loose because the tensioner wants to move, keep the tensioner from moving by holding it in place with a pry bar; then you will be able to loosen the bolt in the pulley.

What size wrench do I need to change serpentine belt?

Use a 17mm wrench to pull the tension back, then tighten the 13mm bolt which locks the slotted portion in the bracket.

What can I use in place of a belt tensioner tool?

One then simply needs a long enough open end wrench (or spanner, if you prefer) and a jack. Simply jack the tensioner up until you can remove the belt.

What tools do I need to change my serpentine belt?

Tools/Supplies Needed:

1. ratchet and socket set.
2. torque wrench.
3. new replacement belt.
4. new tensioner.
5. new pulley.
6. wrench set.
7. jack and axle stands or ramps.

How often should you change the timing chain on a Mini Cooper?

As a precaution, MINI recommends changing a timing belt many thousands of miles before the part reaches any risk of failure. Generally, this replacement interval is between 50,000 and 100,000 miles.