After having fixed a bad leak on the drain tubes last year the crankcase was still getting a coating of oil so this week the remaining leak was tackled by the Porsche doctors at Unit 11.
Actually there were two leaks, one from bank 1 cam chain box to cam carrier O ring / triangle gasket and the other from the crank front nose seal. Both side cam chain boxes O ring / gaskets were replaced and the IMS O ring also changed while everything was accessible.
The cams obviously needed to be timed and the motor is now running great, smoother than before which I think suggests the OPC who had done work on bank 2 many years ago had not matched the cam timing up the very well.
Lessons learnt. The distributor was really tough to remove and the crank pulley torque is huge! Definitely not a DIY.
Actually there were two leaks, one from bank 1 cam chain box to cam carrier O ring / triangle gasket and the other from the crank front nose seal. Both side cam chain boxes O ring / gaskets were replaced and the IMS O ring also changed while everything was accessible.
The cams obviously needed to be timed and the motor is now running great, smoother than before which I think suggests the OPC who had done work on bank 2 many years ago had not matched the cam timing up the very well.
Lessons learnt. The distributor was really tough to remove and the crank pulley torque is huge! Definitely not a DIY.