Camshaft deviation - what to do next....

[Youri Ko]

Hello all,

some background, I got 2001 C2 with about 85K on it. No history except that the car was tracked as some point.

I was playing with the idea of doing the IMS PM but first, learnt about the cam shaft deviation check procedure.

So I got Duramtric and here is what I have :

 

Camshaft 1 :  - 6.27

Camshaft 2 : - 3.05

 

not sure for how long I'm going to keep the car, but don't mind to work on it for bit while winter is still here. What would you do as next step? I have dirty injectors/ fuel rail to take care of, so I was about to do that, but the Camshaft thingy got me alarmed .

 

Open to comments and suggestions....

 

thanks

[wizard]

Next step ?

I wouldn't be unduly alarmed, but I would dissect the oil filter to see what, if any, particles have been trapped.

[JFP in PA]

Hello all,

some background, I got 2001 C2 with about 85K on it. No history except that the car was tracked as some point.

I was playing with the idea of doing the IMS PM but first, learnt about the cam shaft deviation check procedure.

So I got Duramtric and here is what I have :

 

Camshaft 1 :  - 6.27

Camshaft 2 : - 3.05

 

not sure for how long I'm going to keep the car, but don't mind to work on it for bit while winter is still here. What would you do as next step? I have dirty injectors/ fuel rail to take care of, so I was about to do that, but the Camshaft thingy got me alarmed .

 

Open to comments and suggestions....

 

thanks

 

Did you thoroughly warm up the car (as in take it for a ride for 20 min. or so) before you checked your deviation values?  Checking them on a just started car will often give you erroneous values.

 

Even if these are your final numbers, only one is out of spec, and then only by a little bit.  Normally, this is as the result of worn chain tensioner paddle pads, which can be replaced.  And as the values are steady, there is not sign of impending IMS issues.

[Youri Ko]

Test was done on a barely warm car with no test drive.

 

So from what JFP says, nothing to be alarmed so far?

 

I will dissect the oil filter soon and will probably drop the pan later on for a piece of mind.

[JFP in PA]

Test was done on a barely warm car with no test drive.

 

So from what JFP says, nothing to be alarmed so far?

 

I will dissect the oil filter soon and will probably drop the pan later on for a piece of mind.

 

I would not be alarmed just yet, the range for these values is -/+6 degrees, which is a large window.  Take the car for a good run, and then recheck the values before deciding anything, and if the values are still out, you need to replace some tensioner paddles.

[Youri Ko]

Take the car for a good run, and then recheck the values

 

Good to hear, but that will be in spring only.

Meanwhile, while we're on the topic, what exactly needs to be replaced  - twe two "C shaped" wear pads that go between two cam sprockets?

And in my case, that would be Bank 1 I reckon? which is on Left / Drivers side of the car, right?

 

Thanks

Edited February 22, 2016 by Youri Ko

[JFP in PA]

On your car, most likely the two small paddles that sit in between the two cams, just behind the cam chain sprocket.