[Vwdiesel] More Dasher?

[James Hansen]

B & R Decker wrote:
> HI James;
> 
> 	Thanks for the ARP number for 12mm studs that will fit the VW
> diesels that will save a few bucks over buying Race-Ware 12mm studs. I
> believe that ARP lists 11mm studs for gas Rabbits which should fit the 1.5
> and early 1.6 VW diesels that use 11mm fasteners.

I'll have to remember that, thanks.

> 	Resurfacing a VW diesel head does not change valve adjustment and
> normally has nothing to do with valve adjustment or valve shims.

True.
I tend to group things into little piles, like if you resurface the 
head, it gets valves too.  The new exhaust valves are now too long, and 
need to be shorter.  I have a few friends that have experienced this on 
reassembly, and since I own the full shim kit, get to hear the stories 
when they are looking for shims.

No thicker head gasket required, as it is a flat thing.  Making it 
flatter doesn't change much, or change piston protrusion, which is what 
the head gasket thickness deal is for.


  You will
> perhaps need a thicker head gasket and if you take too much off the head you
> might not be able to find a gasket thick enough to avoid valve interference
> with the pistons. You could do a valve job and sink the valve further into
> the head, shorten the stem or use a thinner shim or both and gain some valve
> to piston clearance ( this has to be the harder more expensive way). 	I
> always kiss the head when doing a head gasket and have never had to do more
> than use a thicker head gasket. 

I used to kiss motors too, but my wife objects to me coming in at all 
hours from the shop, motor oil on my collar.  She really put her foot 
down.

I have never measured a used VW 1.5 or 1.6
> head that wasn't warped. Most are warped beyond the spec that VW gives as
> max.
> Brian Decker
> 

Yeah, but the few I've assembled with studs sucked back down nicely.
I think the spec for warpage are a tad idealistic.  I agree, it puts 
pretty much every head in the scrap bin, which was fine when heads were 
cheap and plentiful.  Okay, plentiful anyway.  Now they are neither, and 
you HAVE to machine them, or send them out to the aluminum head guys.
-james