Joseph Tu wrote:
>
> I was talking to a auto parts shops owner in my local area and he told me
> that the reason why my heads on my vanagon are developing small cracks,
> to cause small coolant leaks, may be due to the storage and backflow of
> heat from the cat? He suggested drilling a hole through the cat, through
> the hcomb about an inch in diameter. I am willing to try this if it will
> prolong the life of the heads. Is this an okay procedure to do? Any
> responses appreciated!
>
That would explain VW's statement that this problem is unknown in
Europe.
I do not believe they use catalytic converters there.