non return valve ?

[Bob696]

Ok folks I need a solution.

I have disconected the engine breather pipe from the filter. Fitted a blanking plate over the hole. This left me with a problem. If i get into water that is upto bonnet level I am going to get an engine full of water  

I have run an extension pipe up the outside of the snorkal for the time being but it looks ugly and the paintwork is getting a bit oily.

What I want is some form of none return valve that will let low pressure air out but close if it encounters water trying to enter. I doubt the breather will generate enough pressure to keep the water out.

Oh yeah, I do know it is illegal to vent the engine gasses to atmoshere, it is only temp. honest govner.

[grunty]

Cant you put it into a can thats upside down so it acts like a diving bell?
Al

[mark.yellow.series.3]

illegal to vent engine gasses to atmosfear?  didnt know that, you best tell that to the fleet of 200 generators i run, there all to atmosfear.


but for your solution, vauxhall frontera 2.5 VM engine. has a non-return valve on the breather. its made by MANN the filter company, so you my be able to buy it direct.

[Bob696]

Thanks guys ..... I really like the idea of the diving bell, sort of bodge I can go for :lol:  I will check out the mann valve. See if I can get one from a breakers  :P

[beast5680]

illegal to vent engine gasses to atmosfear?  didnt know that, you best tell that to the fleet of 200 generators i run, there all to atmosfear.

i believe they come under static plant rules which are different to road going vehicles

[mark.yellow.series.3]

illegal to vent engine gasses to atmosfear?  didnt know that, you best tell that to the fleet of 200 generators i run, there all to atmosfear.

i believe they come under static plant rules which are different to road going vehicles

i see, said the blind man and all that.

[gords]

illegal to vent engine gasses to atmosfear?  didnt know that, you best tell that to the fleet of 200 generators i run, there all to atmosfear.

i believe they come under static plant rules which are different to road going vehicles

i see, said the blind man and all that.

I would hazard a guess that if you run them, then you're responsible and accountable. Oh yes, ignorance of the law generally doesn't work

[beast5680]

illegal to vent engine gasses to atmosfear?  didnt know that, you best tell that to the fleet of 200 generators i run, there all to atmosfear.

i believe they come under static plant rules which are different to road going vehicles

i see, said the blind man and all that.

static plant and offroad construction stuff and the like have a different set of rules for emissions etc

[Range Rover Blues]

In Dave Vizards book 'tuning the A sereis engine' he describes a method of connecting the engine breather into the exhaust and using Bernouli's effect to create the positive crankcase ventilation that protects the oil seals.  This also requires a non-return valve to prevent backfiring.