Hello all!

 

I'm new here on Briskoda, and this is my first post 👋 

 

I was wondering if anyone had tangible knowledge regarding camshaft phase adaptation values.

 

I have a 2010 Octavia VRS estate, 2.0tsi.

I bought the car last year and have always been a bit nervous regarding the chain and tensioner issues I keep reading about.

So recently I bought an OBDeleven pro kit to read through any stored faults and check the phase value. 

 

My car has 120,000+ miles, so I was ready to be slightly concerned or even horrified by the number it gave me, however over two days the camshaft phase is consistently reading between -0.67° and -0.79°

 

I have had my suspicions that the chain or at very least the tensioner has been done in the past and i just dont have the paperwork for it, based on some weak evidence around the upper chain cover suggesting it has been opened up.

 

I'm still going to pull the plug off the cover and visually inspect the tensioner when I'm next under the car.

 

But based entirely on the cars milage vs phase value, would it be too bold of me to assume that someone at some point fitted the revised chain?

 

Thank you.

3 hours ago, creederp said:

Hello all!

 

I'm new here on Briskoda, and this is my first post 👋 

 

I was wondering if anyone had tangible knowledge regarding camshaft phase adaptation values.

 

I have a 2010 Octavia VRS estate, 2.0tsi.

I bought the car last year and have always been a bit nervous regarding the chain and tensioner issues I keep reading about.

So recently I bought an OBDeleven pro kit to read through any stored faults and check the phase value. 

 

My car has 120,000+ miles, so I was ready to be slightly concerned or even horrified by the number it gave me, however over two days the camshaft phase is consistently reading between -0.67° and -0.79°

 

I have had my suspicions that the chain or at very least the tensioner has been done in the past and i just dont have the paperwork for it, based on some weak evidence around the upper chain cover suggesting it has been opened up.

 

I'm still going to pull the plug off the cover and visually inspect the tensioner when I'm next under the car.

 

But based entirely on the cars milage vs phase value, would it be too bold of me to assume that someone at some point fitted the revised chain?

 

Thank you.

I’d definitely take a look and photograph with the plug out. You should be able to tell if it is the old design, which would mean it definitely hasn’t been changed.

 

are you looking at the correct live data, there are several parameters closely worded. It is something like camshaft adjustment phase deviation. It’s not gospel only relying on that indicative data parameter. Are you reading it when the car is warmed up?

19 minutes ago, TheClient said:

I’d definitely take a look and photograph with the plug out. You should be able to tell if it is the old design, which would mean it definitely hasn’t been changed.

 

are you looking at the correct live data, there are several parameters closely worded. It is something like camshaft adjustment phase deviation. It’s not gospel only relying on that indicative data parameter. Are you reading it when the car is warmed up?

 

I'm fairly sure it's the right one,

As far as I've been able to see the live data bank reference numbers are the same on vcds and obdeleven and 93 is the one to check

 

This was the reading I had after my 30 minute drive to work thismorning, oil and coolant both at operating temperature

7 hours ago, creederp said:

 

I'm fairly sure it's the right one,

As far as I've been able to see the live data bank reference numbers are the same on vcds and obdeleven and 93 is the one to check

 

This was the reading I had after my 30 minute drive to work thismorning, oil and coolant both at operating temperature

Yeah. Measuring block 93. That would be it. Mine was about -2.0 on a 2010,  after getting a new tensioner  chain and guides. -0.79 is very low, which is good on face of it! .  But I wouldn't totally trust alone.

 

Confirming the tensioner is a latest design and not over extended would provide further reassurance via inspection plug and mirror or borscope inspection camera . You can also take the upper timing cover off and set up timing marks and measure accross timing marks and to centre of upper plastic guide against the specified measurement range. 

 

At 120k miles that phase adjustment is remarkably low. So you could well be right. But personally I wouldn't put 100% faith in it until I could see the tensioner though! But my luck often doesn't run well on those sorts of things! Hence the reservation. 

Edited 5 September, 20223 yr by TheClient