Engine Overrevs

[Rob001]

Got myself a Durametric tool to play with and on the ignitions range 2 tap it showed 91 / 3140h Total operating hours are 3312h.

Reading about this it means that the car is seriously overreved 91 times :eek: but I can not recall doing so probaly by previous owner.

Car (MY99 C2 six speed) runs great, no oil usage, water or temerature problems but is this something to worry about or could it be false readings due to something unknown?

Rob

[RFM]

The engine did not reach range2, 91 times at 3140h, but 91 ignitions, which is a very short duration, i would not worry about it.

[Richard Hamilton]

Also bear in mind that there are only 3 ignitions per revolotion, so you are only talking about 30 engine revolutions. At 7900rpm (range 2 threshold for 996 Carrera) that's less than 1/4 second. Like RFM says - it is nothing to worry about.

[Rob001]

All thanks for clarification on this. Reason for thinking 91 times overreved was based on info from the Durametric website quote:

"Notice the section for "Ignitions (Range 2)." This vehicle shows "1/48h" which means the vehicle exceeded the red line one time during 48 hours of operation. This is an example of a possible car a Porsche dealer will not perform warranty work on as this metric indicates abuse"