LR3 front differential breather cap (TSB replacement part)
#12
can do it standing up
It is one of the few mods you can do standing up and doing it can save you a thousand as others know very well.
This is the kind of fix that should be mandated as a recall - it may not be safety as normally thought of, but it certainly keeps the vehicle from being at the side of the road.
This is the kind of fix that should be mandated as a recall - it may not be safety as normally thought of, but it certainly keeps the vehicle from being at the side of the road.
#13
#15
You live right!
The breather cap is such a cheap easy fix, the dealers should pick up on it and offer it for say $199.95 plus tax - a steal given the cost of new seals/labor - or maybe they prefer the new seals fix .....
#17
That puzzles me!
I am a bit puzzled by the logic re unhooking the vent line at the differential and blowing on it and I suppose then the assumption that all will be well in the future.
It seems to me that all a successful blow would achieve is proof that the vent is currently venting - good to know of course, and that would probably explain why the differential seals have not yet blown, however not now plugged is not quite the same as will not plug.
About all I can recall is that when I cut off the factory vent on my 3, I would not say that I felt any release of pressure, but when I tried blowing thru the old vent, I could not. I just presumed that there was still some venting action, but not a detectable amount re the air pressure I could achieve just from my lungs.
The new vent, before I installed it, I tried same, and I could blow thru it. I presume that all is still good and that if I were to remove it, that I could still blow thru it.
It may be OK to keep the original spark plugs until the engine runs rough, but waiting for the diff seals to blow before changing the vent given that it is a known problem - well that puzzles me.
It seems to me that all a successful blow would achieve is proof that the vent is currently venting - good to know of course, and that would probably explain why the differential seals have not yet blown, however not now plugged is not quite the same as will not plug.
About all I can recall is that when I cut off the factory vent on my 3, I would not say that I felt any release of pressure, but when I tried blowing thru the old vent, I could not. I just presumed that there was still some venting action, but not a detectable amount re the air pressure I could achieve just from my lungs.
The new vent, before I installed it, I tried same, and I could blow thru it. I presume that all is still good and that if I were to remove it, that I could still blow thru it.
It may be OK to keep the original spark plugs until the engine runs rough, but waiting for the diff seals to blow before changing the vent given that it is a known problem - well that puzzles me.
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evsteroo (09-25-2020)
#19
rear differential open to the atmosphere
I notice you mention the rear differential above. I am not certain that there is any sort of vent cap related to the rear differential; it think the hose just has a bend in the vent tube up near the fuel tank filler and is effectively open to the atmosphere. As such, if the vent hose plugged, blowing the hose out would be an effective fix.
The front differential, that is different however, and where the new style vent cap is to be installed to replace the original that is prone to plugging.
The front differential, that is different however, and where the new style vent cap is to be installed to replace the original that is prone to plugging.