N42 Valvetronic

[Martin engine power]

Hello,

Does anyone know anything tech about the N42 (valvetronic)

i wonder why the rockers arms are classed in 5 classifications.

has this anything to do with the camshaft lobe diamers?

what if the cams need to be grinded?

[bad man working]

The arms are grade to give the basic ildel setting this is factory set and if you mix them up your in bis trouble its trail and error and a smooth running programe on a BMW DIS tester if the cam wears renew it's far to precise to grind anfd therer's and load of special tool to work on the valvetroincs

[Martin engine power]

Originally posted by bad man working@Nov 11 2004, 07:00 PM
The arms are grade to give the basic ildel setting this is factory set and if you mix them up your in bis trouble its trail and error and a smooth running programe on a BMW DIS tester if the cam wears renew it's far to precise to grind anfd therer's and load of special tool to work on the valvetroincs

[snapback]228688[/snapback]

i know about the tools, only for € 1200,- on timing tools incl valvetronic system tools