Supercharger Belt Problems!
#21
![Default](/forum/images/icons/icon1.gif)
Do you have a top pulley or bottom pulley conversion? The only time I have seen similar to this sort of wear is when a wrong bottom pulley was fitted, a 4.0 to a 4.2, the spacing is different and caused the belt to jump the pulley.....
Stay away from the double sided set up, expensive, did not cure the problem and restricts your tuning possibilities, I have converted quite a few back to single sided belts
Stay away from the double sided set up, expensive, did not cure the problem and restricts your tuning possibilities, I have converted quite a few back to single sided belts
#23
The following users liked this post:
steveinfrance (06-21-2012)
#24
![Default](/forum/images/icons/icon1.gif)
I'm missing something on this discussion as it pertains to a stock from the factory set up. My 2006 xkr came from the factory with the double sided ribbed belt. Why did Jaguar change the design from single sided to double sided belt? What model year did they make the change? Based on earlier posts it sounds like Jag retrofitted the doulble sided belt on some models which meant that the auto tensioner and idler pulley had to be changed to accomodate the double sided belt. It appears that the 2006 xkr came from the factory with this revision as standard.
#27
![Default](/forum/images/icons/icon1.gif)
I'm missing something on this discussion as it pertains to a stock from the factory set up. My 2006 xkr came from the factory with the double sided ribbed belt. Why did Jaguar change the design from single sided to double sided belt? What model year did they make the change? Based on earlier posts it sounds like Jag retrofitted the doulble sided belt on some models which meant that the auto tensioner and idler pulley had to be changed to accomodate the double sided belt. It appears that the 2006 xkr came from the factory with this revision as standard.
What VIN number do you have?
#29
![Default](/forum/images/icons/icon1.gif)
Checked the parts catalogue, and the double sided belt started from VIN B17759, not sure which year). Also the TSB JTB00045 states the same, so all Aluminum XK series until vin B17758 (2007 year) and all steel bodied are susceptible to the squeal issue, where you should swap to the double sided belt system.
So it’s odd you already had it from the factory this early, but the dual sided belts where already used in in 2005 on the Range rover engines.
So it’s odd you already had it from the factory this early, but the dual sided belts where already used in in 2005 on the Range rover engines.
#30
![Default](/forum/images/icons/icon1.gif)
I assume Jag was trying to fix a slip problem on the single sided belt. One thing is for sure---I'd better be sure the dealer understands what should be supplied when i change the belt. Sounds like you have to change the auto tensioner/idler if going from double sided to single sided belt and vice-versus.
XKRacer stated that he's not a big fan of the double sided belt because it didn't cure the slip problem and tuning---please expand on this I'm curious how it would effect tuning on the ECM.
XKRacer stated that he's not a big fan of the double sided belt because it didn't cure the slip problem and tuning---please expand on this I'm curious how it would effect tuning on the ECM.
![Icon Question](https://www.jaguarforums.com/forum/images/smilies/icon_question.gif)
#31
![Default](/forum/images/icons/icon1.gif)
There aren't that many different sizes double sided belts, so it limits you in changing upper/lower pulleys, it has nothing to do with the ECM.
The following users liked this post:
Mountaincat (06-21-2012)
#33
#34
#35
![Default](/forum/images/icons/icon1.gif)
Problem is that none of the usual belt manufacturers make the special ribbed on both sides version called for in the TSB, so you're stuck getting it from Jaguar.
tbird,
If it's any use to you, I have a good, used idler for the "upgraded" belt off of a 4.2L XKR.
#36
![Default](/forum/images/icons/icon1.gif)
My 06 R came with a double sided belt and I replaced it at 40K with another. My manual calls for replacement of this belt at 40K miles. The new belt was from NAPA and was a Gates belt. I'm not sure why a double sided belt is needed, since the drive is on only one side of the belt. It was fairly pricey at about $50. I do get a small amount of chirping on cold starts, but it could be the serpentine belt doing it, not sure.
Thread
Thread Starter
Forum
Replies
Last Post
FS[Canada]: Vancouver BC FType lease takeover
nd143
PRIVATE For Sale / Trade or Buy Classifieds
1
09-03-2015 04:42 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)