Chain pad tensioner

[DWBOX2000]

My cam deviation recently went from good numbers to 4 and 8. The car 02 S has 68k.
It had a LN IMSB installed another 6-7k ago at a porsche dealership. About 6 years ago.
I know am showing a 4 and a 8. As far as running, nothing has changed, zero rattle, clean filter at last oil change about 1500 miles ago. Could a defective chain tensioner be the issue. Seems true numbers changed pretty quickly so just trying to figure out next steps.
I love my indies response about fixing. No light, no worry.

[papasmurf]

Is the value fluctuating when the engine is revved or holding steady?

[DWBOX2000]

Holding steady.

[papasmurf]

I would think you are probably fine then assuming they are not changing. It is when the values are fluctuating in real time that shows there is a problem.

[DWBOX2000]

Thanks. That agrees with what I read.

[DWBOX2000]

I changed oil. Filter looks like new inside and out, no debris,

[Hamstuh]

the thing im worried about doing this job now is the last time i did an oil change, there was no debris which would lead me to believe the tensioners which i have yet to buy as i want to make sure i NEED it

[997_986]

Everyone with a 5 chain engine with a decent milage count will have to change the rails. They are a wear item like pads and discs and so on.

[Newsguy]

I'm just about finished rebuilding one. While I replaced the rails, I'm not certain it's really a necessity. In both engines I've taken down--and one had significant damage from debris blocking the oil pickup--there was minimal wear to the rails. The pads were nearing total breakup, with one at 106,000 miles and the other unknown.
And unlike the adjuster pads, they seem like the same material as the originals.