[Vwdiesel] New head gasket

[Val Christian]

Sandy,

That is totally new to me.  

Thinking about it, I would hate to have a point in the cooling system,
where there is a "constriction" in a location such as the cylinder head.
Perhaps I'm just to risk adverse.

The last couple of head gaskets I put on have not had this "feature".

The most recent was my 91NA this summer, also with a Victor Reinz
gasket.  Still have the packaging on the shelf...

Val


> 
> I picked up a new head gasket at my favorite parts place today for my son's
> 91NA.
> 
> It is a Victor Reinz, made in Germany, and appears to be very good quality.
> 
> As I studied it, I noticed something I had been unaware of with the previous
> 4 or 5 I have changed.
> 
> The water passages in the block and head are "bean" shaped, or as my wife
> would say, paisley. The water holes in the new gasket are round, quite a bit
> smaller than the passages in the head and block, and are 'very?' small
> around cyl #1, and quite a bit larger around #4.
> 
> I had not noticed this before. I thought the holes in the gaskets were the
> same shape as in the metal.
> 
> After some contemplation (no Zen) I figured the holes around #1 were smaller
> because it was closest to the water pump outlet, therefore these would limit
> the flow a little at the front of the head, and the large holes at the back
> would encourage more flow the length of the block, heading for the exits,
> resulting in the same net flow around each cylinder top in the head.
> 
> I guess people out there really are thinking. This is something new to me,
> but it makes sense. Passive distribution equalization of the coolant.
> 
> A good job for one of those remote IR meters (I have to get one) Good for
> checking glow plugs too.
> I'll snap a pic of it before installing, for the archives.
> 
> Sandy
> 
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