Breathers Again....

R

Richard

Guest

• Apr 12, 2005

• #1

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

 

G

George Spigot

Guest

• Apr 12, 2005

• #2

"Richard" <[email protected]> wrote in message
news:[email protected]...
> 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?
mines a c reg 12j and mine goes to the inlet manifold

 

9

90ninety

Guest

• Apr 12, 2005

• #3

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

Stew
"Richard" <[email protected]> wrote in message
news:[email protected]...
> 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
>

 

R

Richard

Guest

• Apr 13, 2005

• #4

"MVP" <mr.nice@*nospam*softhome.net> wrote in message
news:[email protected]...
> On Tue, 12 Apr 2005 21:08:47 +0100, "90ninety"
> <[email protected]> wrote:
>
>>Mines a 1989 'G' reg. Breather runs to air filter.
>>
>>Stew
>
> It looks like the later version goes to the air filter
> then, I'm not
> sure of the logic behind that though.
>

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

 

B

Badger

Guest

• Apr 13, 2005

• #5

"Richard" <[email protected]> wrote in message
news:[email protected]...
>
> "MVP" <mr.nice@*nospam*softhome.net> wrote in message
> news:[email protected]...
>> On Tue, 12 Apr 2005 21:08:47 +0100, "90ninety"
>> <[email protected]> wrote:
>>
>>>Mines a 1989 'G' reg. Breather runs to air filter.
>>>
>>>Stew
>>
>> It looks like the later version goes to the air filter then, I'm not
>> sure of the logic behind that though.
>>
>
> Nor me. I'll wait and see how things are now that the engine has been
> 'sorted'.
>

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.

 

B

beamendsltd

Guest

• Apr 14, 2005

• #6

In message <[email protected]>
"Badger" <[email protected]> wrote:

>
> "Richard" <[email protected]> wrote in message
> news:[email protected]...
> >
> > "MVP" <mr.nice@*nospam*softhome.net> wrote in message
> > news:[email protected]...
> >> On Tue, 12 Apr 2005 21:08:47 +0100, "90ninety"
> >> <[email protected]> wrote:
> >>
> >>>Mines a 1989 'G' reg. Breather runs to air filter.
> >>>
> >>>Stew
> >>
> >> It looks like the later version goes to the air filter then, I'm not
> >> sure of the logic behind that though.
> >>
> >
> > Nor me. I'll wait and see how things are now that the engine has been
> > 'sorted'.
> >
>
> 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.
>
>
I'd imagine the later arangement is to do with emissions
regulations, just a guess though.

Richard
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