My god, man. Are you using longer-than-stock valves or are the seats just sunk that far? If you're using swivelfoot adjusters, shimming the stands out may allow adjustment range but doesn't correct the geometry - you need to grind the underside of the rocker to make room for the foot. The long 40HP studs are indeed specific to the early 1200 heads (and far too long for your purposes, they screw into the head about halfway down) but the stock later studs have ample thread length at the 10mm end to allow you to merely back them out of the heads a little bit to gain purchase on the rocker nuts. 2 turns out of the head will gain 3mm (that's 2.4 threads at the nut). Use 15mm-wrench-size 8x1.25 nuts with no washers. I've made my own longer ones from 10mm head studs, threaded to 9mm (connecting rod nut) at one end - the shafts & stands needed to be opened up a little to accomodate them. Berg sells HD rocker studs in stock length and +.200": http://www.geneberg.com/cat.php?cPath=6_199
--- Jack Dinan <[EMAIL PROTECTED]> wrote: > Thanks Marc. > I'm struggling with the valve train geometry on a > 1600 and I'm > running out of thread on my rocker studs, thanks to > the stand shims > that I have to use. From you message, it sounds as > though these parts > are specific to the older engines. > Are you aware of any long replacement studs for a > 1600? > jack > > >You unscrew the stock long rocker studs and fit > steel > >inserts into the holes in the rocker-box floor into > >which you thread bolts to mount the rocker > assemblies. > >There are basically two styles of insert, one > that's > >threaded on the outside like in the picture linked > >below and one that's more of a knurled cone on the > >outside that's driven in from below/pulled into > place. > >Personally I prefer the latter if you can find > them. > > > >http://www.thesamba.com/vw/classifieds/detail.php?id=416932 > > > > > >--- Jack Dinan <[EMAIL PROTECTED]> wrote: > > > >> What is this conversion kit that you mention? > >> jhd > >> > > > >>> If you do > >> >need to use the long-rocker-stud heads, install > >> >conversion kits and they'll be OK too (with the > >> >conversion kits you can adjust the lash to > ~.006", > >> >same as the later heads). ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ _______________________________________________ vintagvw site list [email protected] http://lists.sjsu.edu/mailman/listinfo/vintagvw
