

| Subject: | Re: vanagon 1.9l diesel oil blow by in air filter issue? |
| From: | jon |
| Date: | Tue, 27 Nov 2007 10:16:55 -0800 |
Yup, many of the Diesels do have this baffle. I don't know if one would help in this fellow's instance. Seems like quite a bit of oil to be just the baffle. I've got a 1.9NA (Overland) in my '82 Vanagon, and it uses very little (like I can't tell) oil between changes. I have about 30K on the engine at this time. The way I have my vent hoses routed are two hoses coming from the connections on the intake manifold (downstream from the air filter) to a "T", and then a single hose into the valve cover. The hose is 1/2" (ish) ID. I'd guess his engine is toasted, but hoping it's not! Jon On Tue, 27 Nov 2007, Bob Donalds wrote: > The newer in line 4s have a baffle under the valve cover to prevent the oil > from reaching the oil breather tube is that in place > not sure if the diesels have this But it sounds like its time to find out > Bob Donalds > > Boston Engine > > > > ----- Original Message ----- > From: "Dennis Haynes" <d23haynes57@HOTMAIL.COM> > To: <vanagon@GERRY.VANAGON.COM> > Sent: Monday, November 26, 2007 8:36 PM > Subject: Re: vanagon 1.9l diesel oil blow by in air filter issue? > > > > The owner new the rings/piston are shot and you are getting excessive blow > > by. Probably time for an overhaul. Yu may be able to rig the breather so > > that it goes high enough for the liquid oil to return to the crankcase. > > You may also want to consider a tank type breather separator that is often > > used on big rigs. The Vanagon Diesls often had problems with the oil blow > > by collecting in the air filter which can then cause a run-away. Yep, when > > enough of that oil collects in there the engine can suck it in and will > > run on the oil there. No way to stop of slow it except to use the brakes > > and gears to stall it. > > > > Dennis > > > > -----Original Message----- > > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of > > Michael Sant > > Sent: Monday, November 26, 2007 10:25 PM > > To: vanagon@GERRY.VANAGON.COM > > Subject: vanagon 1.9l diesel oil blow by in air filter issue? > > > > Hello everyone, I just joined this list. I just bought a 82' diesel > > Westy with an upgraded 1.9l in it, non-turbo. I bought it off the > > samba classifieds from a guy in Albuquerque, NM for $6500. This > > seemed like a fair price after talking to the guy at great length, > > but after driving it home to Portland, OR. I am second guessing it! > > > > So, when I bought it, the seller had messed with the main crankcase > > breather hose and smaller hoses that come off of the intake. He > > installed a 90� elbow into the top of the air filter casing and ran > > this large diameter hose right from the bottom of the engine > > crankcase directly into this elbow. He had also experimented with > > running this hose into a T which he placed in the middle of the > > smaller diameter hose coming from the top of the engine off of the > > intake. He said that this wasn't working, that maybe the hoses were > > too small in diameter. So he then put electrical tape on this little > > breather hose and routed this large hose into the airbox. > > > > As I was driving home, I was keeping the oil pressure gauge at 3-4 > > Bars and the oil temp between 100-130 Celsius. I kept my speed to > > 55-60MPH on the highway. I was told that the gauge was reading slower > > than actual by about 4-6MPH. I had many hills along the way through > > Colorado and Utah and was often above 7000 feet. So, after about 100 > > miles into the trip, I got gas and noticed I was about 3/4 of a quart > > low on oil, I topped it off with the one gallon that the seller gave > > me (he said I would need it!). After driving further, the next tank > > of gas, the oil was about the same 1/2 - 3/4 of a quart low. So, I > > had good power but the oil temp was remaining a bit high. I made it > > all the way to hood river, OR and the oil pressure was dropping, I > > pulled over and added oil. Drove another 100 miles or so and it > > dropped again, this time I pulled off and opened her up. The oil was > > very low and we noticed this large breather hose routed into the > > airbox, this seemed wrong, so we opened up the air box and there was > > all of my missing oil! It had been dumping it into the air filter > > box! So we sopped up all the oil, and capped off this hose with a > > screwdriver, aimed it at the ground and drove home. When I got home, > > the oil was low again and it had been blowing out the oil dipstick > > tube, the dipstick tube was not fitting tight, so I installed a > > larger o-ring. > > > > So, then I took it into a shop and had them look it over, they said > > that maybe it need the valve and cam cleaned and maybe it needed a > > better breathing valve cover. So they steam cleaned her valves, > > changed the oil, filter and air filter. (it had a cheap autozone oil > > filter on it!) and $89 later I picked her up. > > > > So I drove it around town lightly, but giving it some gas, drove for > > about 15 miles and under 50MPH and got home and the airbox was again > > filled with oil! > > > > So, now I have it a a very reputable shop in town and they are > > scratching their heads about how these breather hoses actually go. > > Since this was not an engine typically installed in a Vanagon, and > > since it was done different ways depending on usage and wether it had > > as turbo, it is very confusing about how this needs to be resolved. > > > > Here are my ideas: > > 1. clogged or bad oil pump allowing too much crankcase pressure to > > build up > > 2. has wrong 1.6l valve cover and needs a 1.9L style one with a more > > robust oil breather/filter cap > > 3. needs better oil breather tubes > > 4. needs an add on crankcase oil filter/breather like the Mann > > ProVent 200 > > 5. needs new rings, (yikes I hope not after paying what I did for her!!) > > 6. ??? Your ideas? > > > > > > Sorry, for the lengthy description, but no one I take it to seems to > > have a clear answer about how exactly these hoses, especially the > > large one coming from the crankcase, are supposed to be routed. > > So, have any of you ran into this problem? If so, what did you do? > > > > Thanks so much for your time! > > > > Signed, > > Sad Biodiesel Westy in P-Town > > Mike >
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