coupling

Hi all, I have a T5 2.5 AXE engine with air-con and need to replace the gates freewheel clutch, problem is the bloody bolt in the center of it...! Is it left or right handed thread..? as it is insanely tight and I don't want to do damage to bolt or thread. Thanks to anyone that can give this info.T:

Got a 2006 caravelle with the climatronic. Had it regassed and it's still in there, so no leaks. The plastic clutch thing (gates coupling) that often brakes is ok apparently. I lost the blowers about 4months ago for about a week and then they've been fine since. Anyone have any other ideas? Or...

Hi all. Just bought a 130 auto diesel on an '05 reg. Aircon not working and ac specialist has told us there is plenty of gas in it but the coupling has gone and quoted us £275 to fix it !! Anybody had the same problem before I think about shelling that lot out. Cheers.