[Vwdiesel] Re: going price of 1.6L turbo diesel engine

[Libbybapa at wmconnect.com]

In a message dated 6/7/05 9:01:23 PM US Mountain Standard Time, 
stephensrw at stn.net writes:


> The turbo head has hydraulic lifters.  I do not know if this makes the
> casting, or machining to the casting from the factory any different than the
> NA 1.6 head with solid lifters.  Others here may know.
> 
> 

Not quite.  Pre-'86 were all solid lifter heads.  There were solid lifter TD 
heads and solid lifter n/a heads.  Post '86 were all hyd lifters.  There were 
hyd lifter TD heads and hyd lifter n/a heads.  Bentley states that the TD 
heads were made of a special "sodium injected aluminum alloy" to better resist the 
higher temps of the TD.  VW may just be blowing smoke as far as that is 
concerned.  I think the alloy is called "expensivium" or possibly "suckerium" and 
behaves exactly as the aluminum of the n/a heads.  I have also heard that the 
alloy is in fact the same.  I am not a metalurgist (not even sure if I spelled 
it right), so I do not know for certain.  Valves may be different.  AFAIK the 
casting number can be the same for n/a and TD heads of a similar year.
Andrew