OM616 excessive oil consumption
OM616 excessive oil consumption
SO my dad's '83 240D he just bought has some super excessive oil consumption, in the area of more than a gallon of oil consumed over 300 miles of driving. He has ordered new valve seals since he thinks the problem is related to them leaking oil into the cylinders.
I however think it is more likely somehow related to the rings, since the car also has some super blowby, like almost enough to send your hat sailing lol. Okay maybe not that much but it is also pretty excessive.
Any other thoughts/suggestions on the problem? If worse comes to worst I have a 240D parts car with about 127k fewer miles on it that I could swap engines with.
Oil pressure should be pinned while driving...also the lack there of could be related to the excessive oil consumption. Are you losing the oil to the road? A bad check valve on the oil return hardline is something common.
Well, whenever I've driven behind him his car has been extremely smokey, so I'm gonna venture a guess and say that it is burning a lot. Also, there are no apparent leaks anywhere, and no spots on the driveway where the car is usually parked. Where is this check valve you speak of?
Well if you say it is not leaking much, than my theory is nullified.
With a little google action you can find anything.
Oil Seperator valve
more then likely rings. Did valve seals on mine just hoping, because it is easy, but no better. So rebuilt it, and added a turbo.
If you try valve seals try not to drop the valves into the cylinders....... compressed air will keep them up, or make sure each piston is at top dead center.
Yeah I plan on making sure the cylinders are at tdc when changing the seals. I also think it is ring related, and if it turns out to be then I'll swap the lower mileage engine from the parts car in, for now
And then rebuild the bad engine with turbo pistons, rods, and sodium filled valves (if I can get them all, of course). If its possible I'll try to find a way to get the piston oil squirters in there as well. All of this would be to make it a true 240 turbo of course
There was some member here a while ago said he was making a jig to help fit sqirters to na blocks.
I think?
300D50
maybe I am imagining this or mistaking something. You'd need to tap the block and plumb them into some pressurized oil I guess.
I got 5 of them if you ever want But you'll prolly get them the same place as your valves and rods.
Yeah this project is going to be a while off into the future, at the rate I've been getting my projects done lately probably like a year or so at least, unless I get another job sometime soon so I have spending money again lol. For now I have two pending projects for my car, so my dad's can wait since I'm the go-to Mercedes mechanic now
I have the remains of a 617 turbo, you could take the pistons, squirters, rods etc out of. That' s what I got it for, but found a rebuilt short block 616, so never used it. Of course new pistons would be nice.
I kept the short block stock, and did all my mods on the head including sodium filled valves for my turbo conversion. Think as long as you don't beat on it all the time it should be just fine without the turbo pistons, etc.
But turbo pistons and rods would be awesome, its just that much more abuse the engine could handle. Not that it would be getting abused, just heavily used lol
An update on the car, it seems to only consume oil when driven more than 10 or 12 miles at a time. He drove the car about 10 miles to and fro from work and it didn't have any oil consumption issues. However, when he took it about 20 miles one way the other day, by the time he got home the oil was just touching the bottom of the "low" oil mark on the dipstick.
So I have a couple thoughts about this. The first is the length of time or distance has something to do with the consumption, and the second is that the high rpm's on the freeway have something to do with it.
I have to think about this some more, maybe I'll try to devise some way to test these theories, but for now I need to go pull some steaks off the grill
(05-28-2012, 05:48 PM)ronnie speed, tell him to slow down......
(05-28-2012, 05:48 PM)ronnie speed, tell him to slow down......
I might be interested in those 617 turbo remains in the coming weeks, talking to the father unit about getting an engine hoist, or at least a block and tackle to pull an engine out with the help of a sturdy tree of course! lol
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
If you're going full on race crazy it would be great to get some billet rods made up, along with an MLS headgasket and ARP studs...then you could run like 35#
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
(06-15-2012, 08:33 AM)Simpler=Better If you're going full on race crazy it would be great to get some billet rods made up, along with an MLS headgasket and ARP studs...then you could run like 35#
(06-15-2012, 08:33 AM)Simpler=Better If you're going full on race crazy it would be great to get some billet rods made up, along with an MLS headgasket and ARP studs...then you could run like 35#