Turboman
Mab An Gov
It will be worn at that mileage, but sounds as if it has life in it yet, they will run perfectly well with a blown head gasket, so that may be worth a look if you have a lot of crankcase pressure. I wouldn't expect more than about 65 mph out of an old worn 19j.
Chedgy
Member
Hey guys, hope you dont me a complete newbie bringing this up again. but on my 19J, i have two hoses coming from the top cap, but this chap only has one? why do i have two?
Turboman
Mab An Gov
I think they used slightly different systems, some I have seen have two off the cap, some have one hose off the cap and one off the back of the rocker box, some have just one.
A while back someone posted a pic of their 19j and it had an oil separator like a tdi, I don't know if it was stock, or retrofitted.
Whatever system you have, try and make sure that any crankcase gases are not directed right onto your air filter
Turboman
Mab An Gov
You will get used to them in time,just keep at it and you will become experienced
If by problem you mean breather issues, there has been a lot posted before, try forum search.
Basically its pretty simple, you need to ventilate the crankcase, and you should transmit any gases from it into the inlet tract, to protect the environment. If your engine is worn, or has a blown head gasket or a cracked head, it will spew out a lot of gas and oil droplets, so it would be sensible to route the gas through some kind of oil separator or catch can before it goes into the intake.
Many originally had a short pipe directly connecting the rocker cover to the intake, and with worn engines the oil for the crankcase gas destroyed the air filters, and in some cases caused diesel runaway.
nobber
Well-Known Member
Turboman
Mab An Gov
Theoretically, yes, but in practice farmers have been applying it to metal for protective purposes for decades, and it is much better than leaving bare metal exposed to the air and weather.
Very overused engine oil will have a lot of water and acid in it, but good oil, well within the reccomended interval, will be more protective than corrosive.
I don't think the tiny quantities that come out of a breather will have much effect one way or the other.
FlyingPete
Well-Known Member
I think they used slightly different systems, some I have seen have two off the cap, some have one hose off the cap and one off the back of the rocker box, some have just one.
A while back someone posted a pic of their 19j and it had an oil separator like a tdi, I don't know if it was stock, or retrofitted.
Whatever system you have, try and make sure that any crankcase gases are not directed right onto your air filter
My 1988 ninety has the two hoses to the cap, which I think is the earlier setup though this was about when they were slightly redesigned so not sure. Some engines have the hose from the block going to the rocker cover instead, hence the single hose from the cap.
While TDs are known to breathe a bit, excessive breathing is a sign that something's broken or worn- they're not supposed to do that and the filter in the oil cap should collect most of the oil carried up with the breather gases. That said, some oil will inevitably get through into the intake and it's always puzzled me why Land Rover put the breather pipe on the upstream side of the air filter. If it was downstream, any residual oil vapour would be drawn harmlessly into the engine rather than clogging up the air filter.
Turboman
Mab An Gov
Yes, I have seen all the variations on different vehicles.
My own 2.5td has no crankcase pressure at all once its warmed up, you can pull the cap off with the engine running, just a bit of vapour drifting about. Sadly this has not been the case with all I have seen
I have often wondered why they didn't stick the pipe in after the air filter too!
sharpe
Active Member
From my experience, including the turbo running away, is that you would rather change a £5 air filter often, then have your turbo feeding on oil (if it breathes heavy enough the turbo will run away? - booooom?) The air filter was meant to take the majority of oil out and let the turbo burn away the very small amount left - I might be wrong....but that was my understanding. Fitted a catch can myself yesterday - not used it since so cant report improvements or reduced blue smoke etc....
Turboman
Mab An Gov
Hate to break it to yu, but a paper air filter removes oil by absorbing it, which makes it useless at filtration, and eventually turns it into a black sodden lump!
sharpe
Active Member
Hate to break it to yu, but a paper air filter removes oil by absorbing it, which makes it useless at filtration, and eventually turns it into a black sodden lump!
Lol - which is why i put a new one in every other month - like i said £5 a go - hardly breaks the bank, now my catch can now seems to catch the most and i've put my K&N back in. -)
Turboman
Mab An Gov
If your engine is spitting out that much oil I would guess you might have a blown head gasket?
Catch can is definitely way to go, or as posted earlier in the fred, route it into the chassis
FlyingPete
Well-Known Member
Mine used to spit a fair bit of oil- you could see it collecting on the chassis beneath the air filter. Sure enough, the head gasket needed changing a short while later. Much cleaner now
bellowhead
111 Terra Series Viatorem
I have done the same but the result is a lot different I pour the oil back into the engine or mine "would run out of oil"
Turboman
Mab An Gov
I have done the same but the result is a lot different I pour the oil back into the engine or mine "would run out of oil"
That isn't right, as above, you have an issue to cause that much crankcase pressure, head gasket, cracked head, vacuum pump can all cause this. Or else your engine is terminally worn.
