Write PWM with only 8 bit? (Timer2) I have a problem with the Servo library. 

I need to read a PPM signal and create a PWM signal of each channel. The problem is that PPM has a higher resolution than PWM so I want to use the 16 bit Timer1 for reading PPM. However the Servo library that writes the PWM signal also uses Timer1. 

Is it possible to generate a PWM signal with 8 bit / Timer2? And has someone made an example, or an explanation about, how to do that?
Yes, Arduino Servo library uses Timer1 (and other ones, depending on Arduino boards) to manage FastPWM via software interrupts. Timer2 is used by tone() function: be careful if you are using that function.

A good example using Timer2 to generate PWM is the Infrared remote library for Arduino. If IR_USE_TIMER2 is defined it will use Timer2. The key code is at IRremote.cpp where the ISR is managed.