I read it here

http://www.vanagon.com/info/articles/oil-pressure-probs/index.html

Yes it is way too late ....

Cheers
Thomas

Miguel Pacheco wrote:
> Hey Benny, actually this is one of those 'old tricks' that I have seen
> around for some time. The theory being that the relief valve spring becomes
> weak, over time, relieving pressure below design, etc., I'm sure you know
> the drill. Personally, this is one of those parts I replace with new, in the
> event that I experience low oil pressure.
> To get to the point, I'm pretty sure that one of the vendors we all commonly
> use here in the US, actually recommends stretching the spring. I'm certain I
> experienced this first hand recently. I tried finding them tonight, but it's
> late and I'm going to bed. That is all. Gracias. Miguel
>
>