installing double valve springs in 043's

[FDK/mrpedrini]

Hey guy's, need some technical advice here.

I want to mill the valve guides of my 043 vw heads, to instal some double Berg (273 a) springs. I need to know to what size the guides have to be to clear the springs. I did some measurements and i think it would be 15 milimeters, is this correct?

cheers, Dennis....

[Udo]

I think you mean the guide boss ? Cut it only to 17 - 17,5mm . Most cut them too much and you get problems when changing guides .

Udo

[FDK/mrpedrini]

Jep, guide boss is the correct discription!!! Thanks Udo for giving this info

[besserwisser]

When I repair guides in heads machined for dual springs I use K-line liners. Its a sleeve inside the valve guide that actualy holds upp better than the original guide.