Volvo XC70 This wagon/SUV crossover offers the capabilities of an SUV without SUV size.

Timing Belt precautions!!

  #1  
Old 11-17-2007, 09:00 AM
tech's Avatar
Administrator
Thread Starter
Join Date: Sep 2004
Location: Orlando, Florida
Posts: 36,351
Default Timing Belt precautions!!

I am writing this post because there has kind of been a little debate lately about timing belts and the service intervals.
[/align]The post is to show why the timing belt should really be changed at about 70,000 miles instead of 105,000 like Volvo says it should be.
[/align]Also Make sure you replace the tensioner and idler pulleys as well.
[/align]I have some pics of belts I have replaced at work on cars.
[/align]I have the belts from a few of the different models the milage will vary between 70K and 80K. You will see how the belts crack at that milage.
[/align]I would not trust the belts like that on my own car. That's why I am making this post so that everyone is informed about the belts and what can happen if they break.
[/align]
[/align]I know not everyone has the money always to get the job done. I know how it is I have 4 kids and very little money. But the point I am trying to make is that it is better to pay between $700.00 to $800.00 or so. Rather than having to Junk the car or pay over $3000.00 to get the head rebuilt or replaced. Or maybe even more to have a new motor installed.
[/align]
[/align]I have my own theory on why they go bad faster on the 1999 and newer cars than on the older cars.
[/align]
[/align]I think it is because of how the timing covers are made.
[/align]The older cars all the heat that gets to the timing belt only comes from the front of the motor.
[/align]
[/align]The 1999 and newer cars the timing cover are different because of having the VVT valve in the cam cover. That allows all the heat from the top of the motor to access the timing belt and add more heat to that area causing the belt to go bad faster.
[/align]
[/align]On the 1993 to 1998 5 cylinders and 1994 to 1998 6 cylinders the timing belts could last a lot long but I wouldn't trust them either.
[/align]But that's my theory.
[/align]
[/align]Now onto the pictures the first batch will be the timing belt pictures with the model,year and milage that they were changed.
[/align]Then the last batch of pictures will be an idler and tensioner pulley from a S80.(Not as bad as I wanted for an example picture but will work.
[/align]Then finally a picture of an engine that had the belt break.
[/align]
[/align]This way everyone has an Idea of the entire situation.
[/align]Then you can make your own decisions from here.
[/align]
[/align]The first belt is from a 2000 S80 with 72,623 miles
[/align]Name:  Picture003.jpg
Views: 265
Size:  54.8 KB
[/align]Name:  Picture004.jpg
Views: 266
Size:  35.3 KB
[/align]The second belt is from a 2003 S40 with 73,746 miles
[/align]Name:  Picture005.jpg
Views: 298
Size:  55.2 KB
[/align]Name:  Picture006.jpg
Views: 266
Size:  39.7 KB
[/align]The last one is from a 2001 V70 with 82,700 miles
[/align]Name:  Picture007.jpg
Views: 261
Size:  54.5 KB
[/align]Name:  Picture008.jpg
Views: 262
Size:  49.4 KB
[/align]
[/align]Here is a tensioner if you look closely in one spot you will see where grease started coming out of the bearing.
[/align]Name:  Picture010-1.jpg
Views: 268
Size:  54.1 KB
[/align]
[/align]Here is the idler same here both sides were spinning grease out.
[/align]Name:  Picture011-1.jpg
Views: 265
Size:  54.9 KB
[/align]
[/align]If your serpentine belt looks like this replace it I have seen them break as well and get sucked into the engine and break the timing belt as well.
[/align]Name:  Picture009.jpg
Views: 263
Size:  42.4 KB
[/align]
[/align]So there is my post the pics might not be the best but should help some.
[/align]
Sorry here is the pics of the head and block.
Name:  Volvo008.jpg
Views: 264
Size:  48.6 KB
 
  #2  
Old 04-01-2008, 09:38 AM
Join Date: Apr 2008
Posts: 3
Default RE: Timing Belt precautions!!

Hi there. I've been deployed for a couple of years and my ex drove the crap out of the XC-- with minimal servicing. I took it into the dealer the other month and they could find no faults-- but the issues that I was having and still am having is an irregular idle--meaning at a stop I notice the vehicle will rev up to 1500 RPMs and then back down, sometimes as I'm rolling into a stop it will rev up and jump forward too-- none of this is constant but happens often enough that it does not feel right. Is this related to the timing? Like I said they hooked it up to the computer but no codes were thrown. Thanks for any advice.

Mike
 
  #3  
Old 04-01-2008, 08:05 PM
tech's Avatar
Administrator
Thread Starter
Join Date: Sep 2004
Location: Orlando, Florida
Posts: 36,351
Default RE: Timing Belt precautions!!

What year is it?
 
  #4  
Old 04-02-2008, 08:27 AM
Join Date: Apr 2008
Posts: 3
Default RE: Timing Belt precautions!!

2001. As I was reading some of the other threads out there the description that fits the problem best seems to be "surging".
 
  #5  
Old 12-11-2008, 11:15 AM
Join Date: Dec 2008
Location:
Posts: 4
Default RE: Timing Belt precautions!!

Unrelated, but "Help!" I just registered on this site, but seem to be too incompetent to find out where to ask a question. The only such link seems to be to "Just Answer", which takes me to another site to register. My question is about ignition cylinders, but I don't want to clutter this thread with that. Please advise. Thanks.
 
  #6  
Old 01-13-2009, 01:29 PM
Join Date: Jan 2009
Posts: 1
Default RE: Timing Belt precautions!!

I think they fixed this problem in the new 2009 XC70. I saw a video a few weeks on this site(http://www.topspeed.com) it looks promising. I love the exterior look of the last gen but has way to many technical problems the new 2009 will hopefully turn out better.
 
  #7  
Old 12-10-2009, 08:18 PM
Member
Join Date: Aug 2007
Posts: 35
Default

Originally Posted by giglt View Post
I think they fixed this problem in the new 2009 XC70. I saw a video a few weeks on this site(http://www.topspeed.com) it looks promising. I love the exterior look of the last gen but has way to many technical problems the new 2009 will hopefully turn out better.
yeah,,i certainly hope so..by the way,,i havent seen the 2009 model,,i better search for it..ive heard that its got lots of nice lowering springs options..
 

Last edited by kurtdaniel; 12-14-2009 at 08:09 PM.
  #8  
Old 03-02-2010, 11:16 AM
Junior Member
Join Date: Mar 2010
Posts: 2
Default curious

Did you happen to know if your A/C is on when the engine surges? I have the same problem but only when the A/C is on and the compressor is cycling. On most cars there is a compensator that kick th idel up when the A/C is on to make up for the increased load on the engine. I have not been able to get a satisfactory answer about this problem on my XC 70 though I have been told it is normal which I find hard to believe. Most of the time I just turn off the A/C if I am sitting in traffic or at a long light. Any body have any ideas?
 
  #9  
Old 12-25-2015, 12:29 AM
Junior Member
Join Date: Dec 2015
Posts: 14
Default

Just did my timing belt at 101,000. Just bought a 2004 XC70 a few days ago and I have no idea if it was ever done, no stickers or anything like that. The tensioner was definitely gone though. I didn't have to do anything to pull the old belt off. It was that loose.
 
  #10  
Old 10-10-2016, 06:22 PM
Junior Member
Join Date: Oct 2016
Posts: 3
Default

Originally Posted by mhakeman0714 View Post
issues that I was having and still am having is an irregular idle--meaning at a stop I notice the vehicle will rev up to 1500 RPMs and then back down, sometimes as I'm rolling into a stop it will rev up and jump forward too
Mike
My 2001 V70CX has symptoms that appeared like faulty alternator - RPM drop when idling as illustrated by minimal headlight flickering. Under load or at speed, - no prob.

My engine guy is not a Volvo guru but the code he got was faulty Electronic Throttle Module. Hope this tip leads to a solution.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
tech
Volvo V70
96
04-13-2019 11:42 AM
tech
Volvo S60 & V60
108
12-06-2018 03:11 PM
tech
Volvo S70
70
10-14-2018 11:41 PM
tech
Volvo V40
33
05-11-2018 05:59 PM
tech
Volvo S80
106
10-23-2014 06:33 AM


Thread Tools
Search this Thread
Quick Reply: Timing Belt precautions!!


Advertising
Featured Sponsors
Vendor Directory

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.