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Tim's Auto Repair
Tim's Auto Repair, mechanic
Category: Nissan
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Experience:  Have owned a repair shop for 25 yrs.
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2001 Nissan Sentra se: alternator and ac..loosen the belt..tensioner

Resolved Question:

i have a 2001 Nissan Sentra SE 2.0. I am trying to take off a belt off the alternator and ac to test some noice. someone told me to loosen the belt by lossening the tensioner. I did this and the belt still is hard to take off. What is the next step to take off a belt.
Submitted: 5 years ago.
Category: Nissan
Expert:  Tim's Auto Repair replied 5 years ago.

tims auto repair :


tims auto repair :

did you loosen the tensionor pulley nut also

tims auto repair :

you need to loosen this,,,then loosen the tensionor adjusting bolt

tims auto repair :
tims auto repair :

2001 Nissan-Datsun Sentra SE L4-1998cc 2.0L DOHC MFI (SR20DE)
Drive Belt Testing and Inspection, Component Tests and General Diagnostics

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Checking Drive Belts

1. Inspect belt for cracks, fraying, wear and oil. If necessary, replace.
2. Inspect drive belt deflection or tension at a point on the belt midway between pulleys.
- Check belt tension using Belt Tension Gauge BT3373-F or equivalent.
- Inspect drive belt deflection or tension when engine is cold.

Adjust if belt deflection exceeds the limit or if belt tension is not within specifications.
- Drive belt tension can also be checked at other points on the belts.

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tims auto repair :
Customer: replied 5 years ago.
what is the tensioner pulley nut? The was this long bolt i took out and the belt is still kind of hard, can't take it out
Expert:  Tim's Auto Repair replied 5 years ago.

you need to loosed the bolt on the slide



look at the picture


Customer: replied 5 years ago.
how do you check for tension?
Customer: replied 5 years ago.
how much do i have to loosen?
Expert:  Tim's Auto Repair replied 5 years ago.

just loosen the lock bolt just enough for it to dont need to take the long bolt all the way out...just loosen it enough for the belt to come off


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Expert:  Tim's Auto Repair replied 5 years ago.

loosen the slider that the long adjuster bolt threads into..this will let it slide