Breathers Again....

Apr 12, 2005 7 Replies

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Richard 21 years ago

Hi all,

I've seen two different configurations of breather pipes on LR N/A diesel engines.

Mine (1986 12J engine) runs from the breather cap to the air intake. Sometimes this can cause oil fouling of the air filter.

The second (photo in May LRO Page 122) show the breather running to the inlet manifold. To me this seems more sensible.

Which one of these is the later version?

I notice that my inlet manifold has a blanking plug so can I assume that it would be quite simple for me to change versions?

Just curious really.

Regards,

Richard

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MVP 21 years ago

1984 110, goes to the inlet manifold, was the same on my previous 110, also 1984, both 12J engines.

I don't fancy the idea of oil splashing on a paper air filter.

Regards. Mark.

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George Spigot 21 years ago

mines a c reg 12j and mine goes to the inlet manifold

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90ninety 21 years ago

Mines a 1989 'G' reg. Breather runs to air filter.

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MVP 21 years ago

It looks like the later version goes to the air filter then, I'm not sure of the logic behind that though.

Regards. Mark.

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Richard 21 years ago

Nor me. I'll wait and see how things are now that the engine has been 'sorted'.

Thanks for your replies.

Next job is the electric cooling fan that arrived today.

Richard

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Badger 21 years ago

If you get a lot of blow-by as the engine becomes virtually worn out, then it will run on it's own oil to distruction - if allowed. It's a lot more difficult for this to happen if the breather feeds into the inlet before the filter, I think that's why the later ones had the breather to the filter and not the maifold. Oh, and the cyclone thingy that's meant to centrifuge the oil out of the breather mist and return the oil to the sump as well. Badger.

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beamendsltd 21 years ago

I'd imagine the later arangement is to do with emissions regulations, just a guess though. Richard

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