Hi guys,
I rotated my new VF34 on the weekend - there isn't alot of info up on the forums so I thought I'd post some pictures showing all the things you need to do.
This the basic rotation location as seen from the front.
You have to bend the little oil feed tube that goes from the block to the turbo. DO NOT use anything other than your hands to do this or if you are as lucky as me, one of those little brake line tube benders. You need to put a 45 degree bend in the pipe straight after the banjo on the head, and then another 45 degree bend after the pipe has bent round compressor inlet. Don't even bend it on the edge of a table or anything, otherwise you'll get a sharp kink which will weaken the pipe.
You need to lightly tweak this coolant inlet (?) pipe with your hands to allow the bolt and washer to fit in the spot shown. You then need to test fit this to your up-pipe to makes sure the pipe clears the turbo / up-pipe mounting bracket.
This following 3 pics show the datums that I used to align the compressor housing in the right location. The centre of the compressor housing bolt shown should line up it the edge of the oil inlet banjo thread, ie the bolt centreline should make a tangent with the banjo hole thread.
This pic shows the holes I drilled in the wastegate bracket - note the scribe marks which show how I did it. Because there is some preload in the wastegate spring, you have to hold the wastegate bracket tightly against the compressor housing while marking out the outline. You then need to approximate the PCD that the original holes are on and then mark up where your new holes shoud go. They are a 5 mm bolt and the original holes are 5.5 mm ID but you could comfortably go to about 8 mm if you wanted some freeplay to line it all up properly. I'd recommend measuring twice and drilling once and just getting it right the first time though.
Many thank to Justin (OS) for answering my questions over the phone on Sunday arv when I was doing this, much appreciated.
Cheers,
Dave