STD Tuning Engine OM617 HELP

OM617 HELP

OM617 HELP

 
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Metzone
Naturally-aspirated

20
11-14-2017, 09:18 AM #1
Hi
I am just starting to reassemble my oil lines etc. on my swap. See link http://www.superturbodiesel.com/std/show...?tid=5847.

My question is this; next to the oil drainback for the turbo on the oil pan, there is another small tube for what appears to be another drainback. What is this for.

thanks
Metzone
11-14-2017, 09:18 AM #1

Hi
I am just starting to reassemble my oil lines etc. on my swap. See link http://www.superturbodiesel.com/std/show...?tid=5847.

My question is this; next to the oil drainback for the turbo on the oil pan, there is another small tube for what appears to be another drainback. What is this for.

thanks

R-3350
Dreaming of compounds

182
11-14-2017, 09:51 AM #2
ignore my post got the pan and filter housing mixed up.
This post was last modified: 11-14-2017, 09:58 AM by R-3350.

85 300D om617: 8mm M pump 175cc 5200rpm, holset he221w @ 30psi, large A2W ic, compounds on the way.
R-3350
11-14-2017, 09:51 AM #2

ignore my post got the pan and filter housing mixed up.


85 300D om617: 8mm M pump 175cc 5200rpm, holset he221w @ 30psi, large A2W ic, compounds on the way.

led-panzer
Holset

541
11-14-2017, 09:53 AM #3
The little thing right next to the turbo drain is the drain for the stock air filter/oil separator

1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake
led-panzer
11-14-2017, 09:53 AM #3

The little thing right next to the turbo drain is the drain for the stock air filter/oil separator


1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake

Alec300SD
K26-2

32
11-14-2017, 10:34 AM #4
It is for the return of coalesced oil from the oil vapors that come out of the crankcase vent on top of the valve cover.

On a stock engines equipped with this fitting, the mist runs to the cyclonic oil seperator in the airbox.
The oil droplets get drained back to the engine via a fitted tube.
There is a one-way valve below that nipple on the sump to only allow the recovered oil to enter.
It sometimes gets plugged.

1) You can simply vent to atmosphere as some do,

2) or run a large oil catch can and use the drain as intended to take care of the oil mist that would otherwise coat your engine bay if you simply vent it to atmosphere,

3) or you can run the oil vapor to the exhaust pipe to burn it,

4) or do what MB did on the W116 300SDs and the 85 OM617 turbodiesels that don't have this fitting...the vapor is fed back the air filter on the horizontal portion of a T-hose fitting and droplets fall (and also get suctioned) into the vertical portion of the T-hose fitting on their way to the air duct connecting the airbox to the tubo inlet to eventually be burned by the engine (except for what ends up coating your intake manifold and intercooler if you install one later on).

Nice build, congrats on resuming your project.
I remember riding in the black Comet that my dad briefly had when I was a kid.
Alec300SD
11-14-2017, 10:34 AM #4

It is for the return of coalesced oil from the oil vapors that come out of the crankcase vent on top of the valve cover.

On a stock engines equipped with this fitting, the mist runs to the cyclonic oil seperator in the airbox.
The oil droplets get drained back to the engine via a fitted tube.
There is a one-way valve below that nipple on the sump to only allow the recovered oil to enter.
It sometimes gets plugged.

1) You can simply vent to atmosphere as some do,

2) or run a large oil catch can and use the drain as intended to take care of the oil mist that would otherwise coat your engine bay if you simply vent it to atmosphere,

3) or you can run the oil vapor to the exhaust pipe to burn it,

4) or do what MB did on the W116 300SDs and the 85 OM617 turbodiesels that don't have this fitting...the vapor is fed back the air filter on the horizontal portion of a T-hose fitting and droplets fall (and also get suctioned) into the vertical portion of the T-hose fitting on their way to the air duct connecting the airbox to the tubo inlet to eventually be burned by the engine (except for what ends up coating your intake manifold and intercooler if you install one later on).

Nice build, congrats on resuming your project.
I remember riding in the black Comet that my dad briefly had when I was a kid.

Simpler=Better
PORTED HEAD

2,127
11-14-2017, 11:42 AM #5
Option #2 is messy but keeps the rust away Tongue

Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
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?
Simpler=Better
11-14-2017, 11:42 AM #5

Option #2 is messy but keeps the rust away Tongue


Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
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?

 
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