2001 Boxster S, one owner, mileage 30,000 kms (18,600 mi).
I decided to connect my Durametric pro for the first time to get familiar and check cam deviations as I have been considering getting the LN Solution installed. I try to keep the rpm under 3000 until the engine is at normal operating temp and usually get into the 5-6000k range regularly. I've never hit the rev limiter though.
Went for a 30 min drive and hooked up the durametric when I got home
Idle cam deviation readings were: Bank 1
(-7.61) Bank 2 (0.53).
I was able to activate the variocam and at idle there was an obvious rpm fluctuation/stumble on both banks when activated. I brought the rpm up to
2800/3000 rpm and deviations were unchanged: Bank 1
(-7.61) Bank 2 (0.53). Actual cam angles increased to Bank 1 (24.66) and Bank 2 (24.83).
It seems that the variocam solenoids and actuators are functioning on both banks which leaves me with a couple of questions. The more obvious to me was that the cam tensioner pads on Bank 1 must need to be changed (but at this mileage?).
Could it be as simple as changing the tensioner on Bank 1?
I spoke with a local Porsche tech who said that when a shop (or dealer) hook up their diagnostics to the car they likely don't dig too deep into the system if there are no codes being thrown. He said he has seen cases where the timing was slightly out...possibly from new, although I'd be surprised if that was the case.
So before I start replacing parts chasing this issue I wanted to lean on you folks who have far more knowledge than I do. I have dropped the oil filter, cut it open an inspected the pleats...they were pristine/clean clean.
The weather is great and I'd love to be out with the top down but I have visions of broken cam pad bits causing the timing to jump a tooth...sheesh!
By the way, during all Durametric testing the cam graph displayed rock steady straight lines with no evident wandering (just the deviation which also remained steady).
Thanks for reading....thoughts pleeze...
2001 Porsche Boxster S
Threaded Mode
