Bleed Valve on engine!?!

[M 80NGD]

Hi,I've just been glancing through the caravan motorhome & camping mart,looking at the article on the bongo bash at Kings Lynn. Whilst reading it.I picked up on this statement,"Owners should also be aware that there is a bleed valve on top of the engine that should be used regularly to release any build up of air." News to me!! Can anybody inform me of this valve and where it is. Cheers,Lee.

[brorabongo]

They will be on about the bleed hose, one of the many threads on this topic.......

http://www.igmaynard.co.uk/bongo/forum/ ... bleed+hose

[missfixit70]

Usual journalistic waffle

[M 80NGD]

Thanks chaps and chappess's,I got a bit worried knowing I hadn't let my air out for two years