I found some videos - they are quite funny 
Motto is: Don't expect to much from HT engines
http://www.youtube.com/profile_videos?user=MBBIMPORTS
Just take a look how they make those engines - http://www.youtube.com/watch?v=1ICpQ1g1qAQ - I almost want to scream to them "Oi, put there better gaskets under cylinder".
They must love that work - noise, fumes, crappy parts - so who cares what we doing
http://www.youtube.com/watch?v=qqQcJUAx55Q - this one is much more interesting - look on those all extra fancy parts - they exist - but vendors rather eats hats than lose some profits and get more reliable and nice made engines and parts.

Motto is: Don't expect to much from HT engines

http://www.youtube.com/profile_videos?user=MBBIMPORTS
Just take a look how they make those engines - http://www.youtube.com/watch?v=1ICpQ1g1qAQ - I almost want to scream to them "Oi, put there better gaskets under cylinder".


http://www.youtube.com/watch?v=qqQcJUAx55Q - this one is much more interesting - look on those all extra fancy parts - they exist - but vendors rather eats hats than lose some profits and get more reliable and nice made engines and parts.