|
|
|
#1
|
||||
|
||||
Turbo seals, valve stem seals and blue smoke...
Hello- OK, I hope some one can give me some ideas here. When I first start out in the morning or after the car has been sitting for a few hours I get some blueish smoke. Not much but enough to say hmmmm. At night I can see smoke in the headlights behind me if I get on it a little, but I think some of that is normal diesel. I have noticed that there seems to be a bit of oil in the air filter and some in the turbo inlet when I have removed the "u" tube. I am thinking maybe valve stem seals need replacing. Has anyone else had the same experience and did replacing the valve stem seals correct this? Also which seals could be going on the turbo? Thanks for any advice.
__________________
If it ain't broke take it apart and find out why. 1983 300SD, 4 speed 1994 C280 1987 300TD wagon 1996 HD Road King Ride in Peace Eric Peterson, Harley of Macon |
#2
|
||||
|
||||
My 79 TD does the same thing (except for the turbo part )...I would love to hear the consensus on the remedy.
How much oil does yours burn? Mine is going through about 1 quart every 600 or so miles. and the M1 5W40 ain't cheap. John
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#3
|
|||
|
|||
Same situation here, but only noticeable when it gets cold. Some smoke on startup and I burn a quart every 6-700 miles. Might be leaking a good portion of that too though. Moderate blow-by when I take the oil cap off. Interested to hear the verdict on this one.
__________________
'79 240D 4 speed manual 105k miles |
#4
|
|||
|
|||
Valve Stem Seals
1984 300d Turbo 141,000
Replace The Valve Stem Seals $12.00 Diy 4-8 Hrs If Smoke At Long Idle, Replace Valve Springs $50.00 Same Time And Camshaft $175.00 And 10 Rocker Arms $280.00 Also New Camshaft Bearing Towers 5 Ea $150.00 |
#5
|
|||
|
|||
Quote:
There is absolutely no reason to blow $655 unless you need them. |
#6
|
||||
|
||||
try
checking your oil seperator in the air filter. make sure the oil can drain down the tube back into your engine. If not, it will get sucked in and burned as fuel.
__________________
'82 Euro MB 300 D Turbo Silver/Blue - Fixed Adding W115 Intake and Intercooler 1986 Chevy Camaro Cp 400HP For Sale Engineer Tuscaloosa, AL |
#7
|
||||
|
||||
Thanks for the replies. I don't seem to burn that much oil of course I have had a few leaks that I've been tightening up! Can anyone tell me about the turbo seals? I know I need to replace the ones on the "U" tube, what else? I have read the threads on turbo rebuilds and may try that in the spring. I guess I'll try the valve stem seals as soon as I can and see if that makes a difference. Thanks.
__________________
If it ain't broke take it apart and find out why. 1983 300SD, 4 speed 1994 C280 1987 300TD wagon 1996 HD Road King Ride in Peace Eric Peterson, Harley of Macon |
#8
|
|||
|
|||
What you might have is a blow by the piston rings from to much crankcase pressure - ( OR ) if the air filter air oil seperator is clogged like mine was oil leaks out from around the rubber pipe on top of the cam cover and down the side of the cover and will also leak under the alternator at the point wheir the vent pipe that conects the oil pan to the air filter -- look at right side of pan for lots of liquid -- at that point mine was lumping globs of a thick guey oil sluge ( it mixed with dirt entering the front of the radiator ) it than went into intake and almost filled it to the point that the air was being stoped from coming into the motor -- i took the intake off a gallon of paint stripper and all the simple green i owned later it than colggggged 2 oil filters on my wash tank wrecked the cleaner and 3 large bottel brushes and it was as good as new -- what a mess if i had to do that again i would just buy a manifold -- 6 hours and 165 bucks wort of stuff 350 a gallon for safty kleen and it was garbage when i was done my shirt and swets the pressure washer was a mess the shop was trashed never again but i fixed it hahahahahahahahhahahahahh -- -- jz
|
#9
|
||||
|
||||
great list of things you did... did it help?
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#10
|
||||
|
||||
Quote:
that will help a turbo motor, but what about the N/A motors? the pcv goes straight into the intake, no oil separator. would it be worth it to install one? can a N/A motor use one? I have seen some for sale, but I may just try to build one. John
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#11
|
|||
|
|||
Quote:
The next step up... cam, bearings and towers... I would only do if they show to be past tolerances given in the FSM. |
#12
|
||||
|
||||
Quote:
The E-Class owners bible gives a nice cutaway view of the oil seperator. I have to check and see if mine is clogged. As of right now the entire intake side is caked over - I just spent hours cleaning the manifold out and painting it. The intake valves look horrid, if you have this problem I'd look into cleaning/replacing them. The Procedure for this is as follows: -Remove crossover pipe, and manafold. -Remove Valve cover (have replacement gasket) -Now's a good time to replace all those cracked/missing injector line holders -Put first cylinder at TDC (turn nut on PS pump CW) -Procede to start cleaning valves off (use a screwdriver, and an assortment of picks) (The use of brakecleener type products isnt recomended, but could be used, as your vacuuming it out whaile at TDC) -To getto the other side of the valve, turn it via it's top (valve cover side) -Vaccum it out - be Sure to get everything -Continue for the next 4-5 cylinders (this allpies to OM60x engines) Expect it to take about 20 hours (as per whunter's instructions) It's MUCH cheaper/easier than taking the head off
__________________
-1983 VW Rabbit LS Diesel (5speed, VNT/Giles build) |
#13
|
||||
|
||||
Leathermang- What part are you calling a valve rotator? I haven't heard that yet. Are these the valve guides? Thanks.
__________________
If it ain't broke take it apart and find out why. 1983 300SD, 4 speed 1994 C280 1987 300TD wagon 1996 HD Road King Ride in Peace Eric Peterson, Harley of Macon |
#14
|
|||
|
|||
In the Haynes manual they are called ' rotocaps'.... page 90.
I do not see them discussed in the 617.95 FSM... but the picture on page 03.8-345/4 F2 shows it numbered item # 69. They are only on the exhaust valves...and they are the first thing above the valve guides. Each time the valve is activated it rotates it slightly.. this keeps the valve and the seat worn and cooled more evenly and adds lots of life to a valve... some cars have them on both the exhaust and intake... I do not see them in the exploded drawings in the Performance Products catalog so they may be Dealer items only... they would be a replace ' on principle' item just like the springs in my book... can't cost much and do lots of good. |
#15
|
||||
|
||||
Thank you for the clarification, I will check the haynes out. I was looking at performance product and did not see them, that is why I asked. I guess I'll talk to the dealer and see what they have to allow. Well I'm off to some junk yards today to see what I can see.
__________________
If it ain't broke take it apart and find out why. 1983 300SD, 4 speed 1994 C280 1987 300TD wagon 1996 HD Road King Ride in Peace Eric Peterson, Harley of Macon |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|