2004 Mini Cooper S.

Does the belt tensioner need to be on the second hole to replace belt.

Stock serpentine belt for Mini Cooper S 2004 have a Napa equivalent or AC Delco equivalent.

 

Yes, second hole. There is a Gates/NAPA replacement available. Any auto parts store ought to be able to provide you with a correctly crossed belt for your car.

 

Thanks for the quick response. Waiting for the idler pulley to come in I had to order online nothing locally. Having trouble removing all the shredded pieces of the old belt. Some strands stuck on the AC pulley hard to remove. I am thinking of just snipping the strands as close to the pulley as I can and put on the new belt. What are your thoughts.

 

Get all of that crap out of there. Since the micro v's of the belt are what does the work of the belt, if you leave any in there, you could have a slipping belt. Use a wire brush, or a pick while spinning the pulley by hand to get it out.

 

Got the idler pulley today. Went to the local NAPA store to get a serpentine belt. Did not have a part number match so I brought the old belt there. The old belt was the belt that was on when I bought the car last year. This is the same belt when my vibration busted.

Well anyways had them match the belt by size brought the new one home and it was way too big.

I can only guess the original serpentine belt stretched. Is this possible? Please let me know. I will have to wait until tomorrow to replace the belt.

Another question since there is a belt tensioner I am thinking the match doesn't have to be that precise. What do you think? What are the guidelines of how much travel the tensioner should give based on the belt size. IE smaller belt less travel or medium belt medium travel.

 

The old stock belt if you have no pulley is a 1388 MM conti-tech belt, 6 rib, if and have the JCW (11% reduction) it is a 1374mm belt, 6 rib again... Since US sizing is different, they can look it up, and give you the equivalent.
If you have a pulley...then the belt you need depends on the pulley...Most folks with the 15 or 17% reduction are running the 060535 belt I think, but some run the NAPA 060539 (one size bigger)....either should be fine with a reduction...if you are not running a reduction, .the parts guy can look up the size to get you the us equivalent...you will be between sizes, so IMO, just pick the closest one, or the one that is a bit shorter than stock....it will prevent it from slipping!
I know I had them look up the belt for the MINI in a book once...they told me it was a 060547...I think that is MUCH longer than the stock (I bet it would have Slipped at high rpm's a ton after a few miles) (060545 I think is the best match for stock)....so go by the length look-up, not the "book" recommends "x" size at the auto store.

 

I'm using the 1374mm belt with my 15% pulley. Have the 1st hole, or about 9-10mm shaft length, showing. No problems with belt slippage.

 

I have the stock pulley size. Waiting for NAPA to open this morning. Hope they have the belt in stock. Thanks for the help.

 

Just a note for those of you with smaller pulleys. Even with the 15%, you should try to squeeze a 535 belt on there. It may take a little help from an assistant, but go the extra mile. It will actually last longer since it slips less near redline.

Here's how you do it. Set the tensioner on the second hole (Castro will now have discovered that new tensioners come from MINI on the first hole, which means a little more work), run the new belt over the correct pulleys, leaving the AC compressor un-belted. Now have a friend gently but firmly pull the tensioner just a little more, exposing the whole 2nd hole and then some. This will give you enough slack to slip the belt over the AC compressor pulley. Release the tension and boom: now you're cooking with sugar.

 

Exactly.....works like a charm.

 

I am now confused. I finally gave in and went to the dealer to get the over priced belt. I went home and put it on following the diagram and it is way too big. I do not know what I am doing wrong I double checked the diagram. The only thing I can think of is something is wrong with my tensioner or one of the pulleys.

 

double post

 

https://www.northamericanmotoring.co...tine-belt.html

This link has some good pics!!