|
|
|
#16
|
||||
|
||||
Quote:
__________________
1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car" |
#17
|
||||
|
||||
No problem! That information was from the other board. Now it's here as well. Cheers!
__________________
http://farm8.staticflickr.com/7271/7...144c3fc1dc.jpg |
#18
|
||||
|
||||
I've had two of these filters on my 79 for a couple years, but Kerry's observation about them be a "early warning" of catastrophic VP failure has prompted me to get off you duff and put them on my 85.
A few years ago I bought a burned up 82 240D that had a good running engine, which I pulled for another car. I disassembled the VP (just to inspect it) only to discover the piston had broken through the top plate but none of the pieces had gotten down into the engine yet, another story but, point is, had there been a filter on the vacuum line oil would have been visible. Good thing the car caught fire as in a few more miles the engine would have been toast anyway
__________________
1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car" |
#19
|
||||
|
||||
c'mon Charlie,
show us a pic of the rest of the engine. I was really impressed by the polished intake manifold, valve cover and oil filter cover..perhaps the rest of the forum would like to see it too--
__________________
Nate Stanley (Currently Benzless) 1985 F-250 6.9l 170K 2009 SCION XB 36.5K 2003 LS430 78K 2012 Kubota B 2320 |
#20
|
||||
|
||||
Quote:
__________________
http://farm8.staticflickr.com/7271/7...144c3fc1dc.jpg |
#21
|
|||
|
|||
I'm actually a little puzzled by one issue to related to this matter. I can understand why a failed shut off diaphragm sucks oil into the system because there is vacuum on the shut off for a long period of time, slowly pulling oil back towards the vacuum pump.
But why does a failed vacuum pump diaphragm get oil in the system? Theoretically, air is being drawn thru the vacuum system, towards the vacuum pump, so there is no 'incentive' for oil to move from the vacuum pump up into the vacuum system. Even if the vacuum pump diaphragm fails, there is nothing pushing oil into the system as far as I can see. Can anyone explain this? I'm thinking that when oil gets into the system, it's all coming from a bad shut off valve.
__________________
1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
#22
|
||||
|
||||
Answer
Quote:
|
#23
|
||||
|
||||
Roy is correct. Also when the diaphragm fails, the pressure in the crank case forces blow by down the vac lines.
__________________
Grumpy Old Diesel Owners Club group I no longer question authority, I annoy authority. More effect, less effort.... 1967 230-6 auto parts car. rust bucket. 1980 300D now parts car 800k miles 1984 300D 500k miles 1987 250td 160k miles English import 2001 jeep turbo diesel 130k miles 1998 jeep tdi ~ followed me home. Needs a turbo. 1968 Ford F750 truck. 6-354 diesel conversion. Other toys ~J.D.,Cat & GM ~ mainly earth moving |
#24
|
||||
|
||||
It seems the MB engineers should have covered this one, but...who am I to wonder about such things
Even if you dont have climate control theres still allot of things that can get trashed. This and the "adding that extra tail light bulb" seem like worthwhile "add-ons" for these cars.
__________________
1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car" |
#25
|
||||
|
||||
We put one on the final car in our fleet that did not have one (my dad's '82 SD).....1.5 months later the shut-off failed, and it now has oil in it. It still shuts the car off, but the filter is half full of oil. The car is sleeping for the winter, so we will change the shut-off (have a new one on the shelf) eventually....
__________________
-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#26
|
|||
|
|||
That doesn't make sense to me. If crankcase blowby is forcing it's way past the vacuum pump diaphragm there wouldn't be any vacuum in the system causing the brake booster to fail and making most people stop driving and fix the pump to get their brakes back.
__________________
1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
#27
|
||||
|
||||
Hmmm
Quote:
Even a small rip or puncture will pass a lot of oil. With the engine running, shutdown: * Vacuum is applied to the failed shut off diaphragm. * Crankcase blow-by is forcing it's way into the vacuum system. * All of the MB vacuum pumps that do not have a second dedicated vent/output hose; air vacuumed from the system is vented into the crankcase, increasing crankcase atmospheric pressure = making the issue worse. |
#28
|
|||
|
|||
OK. That I get.
I remember reading somewhere that oil would get into the vacuum lines by a failure in a vacuum pump diaphragm and the clear filter would give warning of a failed pump diaphragm. That's the part that doesn't make sense. Seems to me that oil in the vacuum system must be coming from the shut off diaphragm and not a failed vacuum pump diaphragm.
__________________
1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
#29
|
||||
|
||||
I just finished installing my filters from Phil, one in the brown shut down switch line and one in the door lock and headlight adjustment line. I dont think it would matter which way they go although with the "beveled" end toward the switch it looks like oil would collect on the outside of the filter paper in the event of a ruptured diaphragm, not that you couldn't see it if were on the inside.
__________________
1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car" |
#30
|
|||
|
|||
Just replaced the shutoff valve and put one filter in that line and another in the 'everything else' line coming from the pump.
__________________
1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|