Thread: Puma Gearbox Breather

I guess if you did any really deep (ie enough to submerge the gearbox - which really means I think some water inside the cab) wading then there is a small chance you could get some water into the gear box. The cold water will cause a rapid cooling of the gearbox which will in turn make the air inside cooler and which is relieved through the breather tube.

However outside of cold water immersion - there should not be a great deal of air flow through the breather so I would guess it's not likely to suck much dust in during normal operation. (for example the fuel tank breather is much further back and has a constant flow of air due to fuel usage...)

Also given that the bell housing on the Puma's has no wading plug and indeed has a couple of rather large holes on each side - I'd be more worried about having crap enter the clutch housing and destroy the clutch.

Personally - I'd take it to an independent non dealer and get them to change it. If you get a dealer to do it and they find it's water contaminated then they will note it on your warranty record. Also a independent non dealer is far more liekly to really tell you what they find when they drain it.

Thanks for that
Good idea regarding the oil - problem is Dealer knows I intend to check the oil as I threatened to do so at my own cost when they refused to check it under warenty - if there is water, it's their fault for leaving off the breather.

I did feel inside the hole where the crank sensor is and found no sign of mud etc there. I was more concerned that the splashing effect of the tires could have thrown up water on top of the gearbox and the cooling effect like you mentiond sucked in the water.

I guess the chances are small - but for safety sake I may as well get them to change it.