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-   -   Cam deviation numbers (http://986forum.com/forums/showthread.php?t=77921)

kcphuah 05-29-2020 03:12 PM

Cam deviation numbers
 
Hi all, my 04 S has 84000 miles I am wondering when I plug durametric into the car to read cam deviation, should it be done when engine is running or just at ON position?

At engine Warmed up but not running I have a reading of camshaft position 1 at 1.09 and camshaft position 2 at 0.72, am I within spec or out? What range is considered acceptable? Your feedback is much appreciated.

thom4782 05-29-2020 04:03 PM

Spec is +/- 9 so you are in spec. I believe you should take with the car running warmed up

Kboggs 05-29-2020 04:47 PM

Quote:

Originally Posted by kcphuah (Post 617905)
Hi all, my 04 S has 84000 miles I am wondering when I plug durametric into the car to read cam deviation, should it be done when engine is running or just at ON position?

At engine Warmed up but not running I have a reading of camshaft position 1 at 1.09 and camshaft position 2 at 0.72, am I within spec or out? What range is considered acceptable? Your feedback is much appreciated.


Thats a great number, but is supposed to be taken at full operating temp, like right after a 30 minute drive, not warming up in the driveway.


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kcphuah 05-29-2020 05:12 PM

The reading was taken when the engine was fully warmed up and has been driven for at least 30 minutes but should I have taken the reading when the engine is idling or just turned ON ?

Quote:

Originally Posted by Kboggs (Post 617910)
Thats a great number, but is supposed to be taken at full operating temp, like right after a 30 minute drive, not warming up in the driveway.


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blue62 05-29-2020 06:15 PM

Quote:

Originally Posted by kcphuah (Post 617911)
The reading was taken when the engine was fully warmed up and has been driven for at least 30 minutes but should I have taken the reading when the engine is idling or just turned ON ?

Idling
The spec is +/- 6 degrees not +/-9

thom4782 05-29-2020 08:05 PM

Blue62 is right +/-6 is the spec. Sorry about the misinformation. IIRC, codes start getting thrown about +/-9.

NewArt 05-30-2020 04:40 AM

Engine completely warmed up, engine running at idle. Reading should be stable within 6 degrees plus or minus.

blue62 05-30-2020 05:14 AM

Quote:

Originally Posted by thom4782 (Post 617918)
Blue62 is right +/-6 is the spec. Sorry about the misinformation. IIRC, codes start getting thrown about +/-9.

you are correct

kcphuah 05-30-2020 08:49 AM

thank you everyone.

flmont 05-30-2020 08:00 PM

So if you throw codes at -9 wouldnt that be a early warning for the IMS issue.??

NewArt 05-31-2020 09:39 AM

Quote:

Originally Posted by flmont (Post 617959)
So if you throw codes at -9 wouldnt that be a early warning for the IMS issue.??

Not really. Very worn chain rails (guides) will cause this reading.

flmont 05-31-2020 05:17 PM

Oh..Ok Thanks,.!! Newart.


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