"N_Cook" wrote in message ...

Charles wrote in message
...


"Boris Mohar" wrote in message
...


Took apart a Volvo 850 fuel pump relay. Cracks everywhere.


Some of the responses to your post are misleading. The dull, grainy look
is
normal with lead-free solder.

The cracks are not necessarily a fault. Surface cracks that we can see,
often do not extend deep enough to cause problems.

In any case, soldered joints have indeed been compromised by the new
"improved" lead-free alloys!

Mixing politics and engineering will almost always yield bad decisions.


.

This is why the likes of the aviation industry has a derogation to allow
continued use of leaded solder. Fuel pumps etc with PbF on a plane will soon
have them falling out of the sky.
They then have the problem of sourcing guaranteed PbF-free componentry ,
only single type production lines (PbF) around these days , generally
speaking , so insentive (serious mark-up) for a lot of fraudulent paperwork
and manifests etc , declaring the items are leaded when they are actually
PbF

It would be nice to live in a structured society where the governing system
reacts, but never over-reacts. And, this is really a dream, where
governments act proactively, before things go to ****e.