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Geezer 911
Trainee


Joined: 14 Aug 2017
Posts: 87
Location: Essex Boy


PostPosted: Tue Jan 14, 2020 9:22 am    Post subject: Drive belt tensioner high pitch squeal Reply with quote

Morning all,


Last October I noticed on a damp morning every time I reversed the car when coming out of my drive I cain hear an excruciating high pitch squeal which lasts for around 5 seconds and sounded like it was coming from drive belt area.

Before Xmas when I took my car to OPC to change my PDK fluid part of the service was to replace air filter and drive belt. When I picked up the car the advisor said the technician said at the the next service as I should consider replacing the the drive belt tensioner as is the where the issue is occuring but at the same token as the drive belt has just been replaced I shouldn’t have this issue for a while.

The squealing has now started happening everyday this week. For anyone else that had experienced this how long did you wait before you replace the part? As mentioned the noise lasts for seconds but at the same time I do not want to knowingly damage the engine etc.


Cheers
 
  
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darkhorse
Monza


Joined: 24 Feb 2019
Posts: 211
Location: under the car


PostPosted: Tue Jan 14, 2020 9:50 am    Post subject: Reply with quote

If the bearing is failing, you should get it replaced asap... only bad things can happen by leaving it in my experience. Not sure why they would send you away with a known dodgy tensioner bearing.
I would get the belt taken off the tensioner and the tensioners current state closely examined.
 
  
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Windy101
Spa-Francorchamps


Joined: 05 Jun 2015
Posts: 301



PostPosted: Tue Jan 14, 2020 10:24 am    Post subject: Reply with quote

Is your car a Gen 1 or 2?

There is a thread on here that describes a common problem with the Gen 2 drive belt tensioner and whats involved with its replacement.
 
  
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P9XX
Newbie


Joined: 04 Oct 2018
Posts: 35
Location: Hertfordshire


PostPosted: Tue Jan 14, 2020 11:12 am    Post subject: Reply with quote

@Geezer 911

I'm guessing your car is 997 Gen2 because of the PDK fluid change.

This is the link to deMorts posting regarding Aux belt tensioner failure.
My own postings are here too.

http://911uk.com/viewtopic.php?t=132158

My car is a 40,000 mile, 2008 registered Gen2 ( a very early one then ) and it had a failed tensioner arm and hydraulic tensioner but an OK tensioning roller. It had an original tensioner arm and was replaced by an updated part with a newer part number. I had the whole lot replaced, bolts as well.

Regarding squealing at start up, I noticed it for a second or so a couple of times which led me to check the assembly as per deMorts guide.

I'm guessing earlier models like mine are more prone because I guess newer Gen2s had the modified tensioner arm fitted during manufacture.

As @darkhorse says, check it asap.
_________________
2008 997.2 C2S PDK Basalt Black
 
  
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Geezer 911
Trainee


Joined: 14 Aug 2017
Posts: 87
Location: Essex Boy


PostPosted: Tue Jan 14, 2020 11:13 am    Post subject: Reply with quote

thanks for reply's it is Gen 2 PDK
 
  
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darkhorse
Monza


Joined: 24 Feb 2019
Posts: 211
Location: under the car


PostPosted: Tue Jan 14, 2020 11:19 am    Post subject: Reply with quote

Geezer 911 wrote:
thanks for reply's it is Gen 2 PDK


On that basis it's not far off a 'dont pass go' issue that needs rectifying immediately if it was my car. Demort posted a very interesting thread on the gen2 tensioner that I managed to find...
here

http://911uk.com/viewtopic.php?t=132158&highlight=tensioner
 
  
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Geezer 911
Trainee


Joined: 14 Aug 2017
Posts: 87
Location: Essex Boy


PostPosted: Tue Jan 14, 2020 11:29 am    Post subject: Reply with quote

darkhorse wrote:
Geezer 911 wrote:
thanks for reply's it is Gen 2 PDK


On that basis it's not far off a 'dont pass go' issue that needs rectifying immediately if it was my car. Demort posted a very interesting thread on the gen2 tensioner that I managed to find...
here

http://911uk.com/viewtopic.php?t=132158&highlight=tensioner




Thanks for the quick response. I am going to get this booked in asap.
 
  
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darkhorse
Monza


Joined: 24 Feb 2019
Posts: 211
Location: under the car


PostPosted: Tue Jan 14, 2020 11:44 am    Post subject: Reply with quote

Geezer 911 wrote:
darkhorse wrote:
Geezer 911 wrote:
thanks for reply's it is Gen 2 PDK


On that basis it's not far off a 'dont pass go' issue that needs rectifying immediately if it was my car. Demort posted a very interesting thread on the gen2 tensioner that I managed to find...
here

http://911uk.com/viewtopic.php?t=132158&highlight=tensioner




Thanks for the quick response. I am going to get this booked in asap.


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deMort
Dijon


Joined: 21 Mar 2015
Posts: 7721
Location: Brighton


PostPosted: Tue Jan 14, 2020 7:51 pm    Post subject: Reply with quote

As already mentioned above then get it checked please.

These cars basically don't squeal .. a partially seized tensioner could allow slack in the belt which could cause this .. i would seriously expect the OPC would have seen if there was an issue with the tensioner as these either need replacing or don't ( its either free moving or it isn't ) .. to say there is an issue but then not change it .. hmm

I really don't get that part to be honest .

Info is all in the link .

darkhorse Thumb
_________________
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My Daughter's Crowdfunding has hit the target .

Thank you all so Very much .

She's not going until july 2020 though .



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