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Accessory Belt Tensioner - Pulley or Assembly?

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive P2 platform cars sold as model years 2001-2007 (North American market year designations).

2001 - 2007 V70
2001 - 2004 V70 XC (Cross Country)
2004 - 2007 XC70 (Cross Country)
2001 - 2009 S60
2003 - 2007 S60 R
2004 - 2007 V70 R

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vtl
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Re: Accessory Belt Tensioner - Pulley or Assembly?

Post by vtl »

Yes, I broke that way 2 such tensioners and 1 on my P2.

cn90  
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Post by cn90 »

- You could have used the center bolt (on the pulley itself) to tension the belt.

- But anyway, I usually change the pulley ONLY, so not an issue for me.
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

vtl
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Post by vtl »

T2 - yes, absolutely. Not on T12.
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It also sits very close to the chassis, there's maybe one inch or less if I remember correctly. P3 is absolutely designed with no planned repairs in mind. Modern Volvos are junk.

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Post by cn90 »

This is the way I see serp belt in any car...

- Lifespan for belt is ~ 120K.
- Pulley ball bearings dry around 80K-100K, in theory, you can gently remove the seal and
add HD grease in that small space. It may give you another 50K of service if money is tight.
- When I buy a used P2 at ~ 100K, belt still serviceable, pully makes noise when spun by hand.
- So, I usually replace the serp belt + pulley at 100K-120K range.
- I keep the old belt and pulley in the trunk just in case (I usually grease old pulley before putting it in the trunk).

- If I ever get to 200K, then I'd replace the entire assembly.

- If you read reviews at FCPEuro, most ppl get > 200K on the original tensioner. But agian at >200K, replace the entire tensioner.
On the issue of broken Torx hole, some ppl mentioned using a strap or whatever to tension the belt for installation.
If the tensioner is good otherwise, why throw it away when only the Torx hole is broken?

https://www.fcpeuro.com/products/volvo- ... us#reviews
Last edited by cn90 on 31 Jan 2023, 13:31, edited 3 times in total.
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

cn90  
Posts: 8256
Joined: 31 March 2010
Year and Model: 2004 V70 2.5T
Location: Omaha NE
Has thanked: 4 times
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Post by cn90 »

In the video below, the youtuber said the serp belt tensioner became "crooked", i.e., not aligned straight.
How many people here have this issue (crooked tensioner but the pulley is otherwise good), and if so, at how many miles?

2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

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