Re: Girdle, welded? (was: Re:2L head bolts)

[Carscribe@domain.elided]

In a message dated 1/13/02 11:14:50 AM Pacific Standard Time, 
johnhertzman@domain.elided writes:


> In AD8-0371 John Fielding says "I was told by a knowledgable person that the
> head retaining studs are in fact welded to a steel girdle which is placed 
> into
> the casting mould before the ali is poured.  I know that certain studs 
> suffer
> from corrosion more than others, IIRC the two near the rear on the intake 
> side
> of the block seem to waste away faster than the others.  Any body confirm 
> the
> story about the stud girdle??"
> 
> All I can confirm is that the parts books show individual studs, threaded at
> both ends, quantity ten, described as "Stud, head" - 105.41.01.103.01 in the
> case of the 105/115/116 two-liters. Hypothetically could be threaded, not
> welded, into a girdle, but I can't see why they would be. "Knowledgeable
> person" may perhaps be confusing with some other product?

The studs are indeed threaded, as I had to replace a corroded set on my 
Duetto, and have witnessed several other sets removed and replaced on later 2 
liter Alfas. They were certainly not welded in place, and were removed with a 
standard Snap On stud removal tool. The "knowledgeable person" was clearly 
thinking of some other aluminum block and head, wet liner 4 cylinder engine 
(since there are so many others out there).
Cheers,
Paul Mitchell

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