It’s a fine idea but have you ever seen an engine with bearing failure before the rest of the engine has worn out? I haven’t and I have been working on car, aircraft and boat engines my entire life. My boat engines are 34 years old and sit most of the winter before being fired up in the spring and I figure if they have lasted this long without pre oiling they don’t need it. If you are worried about your diesel just crank it some without waiting for the glow plugs and you can see the oil pressure come up on the gauge.

Dan

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81 240D 4speed with 300D engine
87 560SL
2005 E320
Yukon Denali
Sierra Denali
850 Turbo Volvo
1996 Mustang
1984 Mustang race car
3 Boats

I bet your mother found that annoying at first

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1979 240D, 4spd manual, Power Sunroof, manual windows, 147k miles, Pastel gray/Black MB Tex.
1991 300D 2.5 - Smokes like it's on Crack!

Thank You Roy for originally posting this, and with the Google searches, I will have hours of good reading .

I know this thread is about pre-lubing a long stored engine, but I have belived for a long time pre-lubing an engine is a good idea for long life.

might be a good idea in the cold of winter when the oil is cold and thick, pre-lube while the GP`s are on.

A pre-lube might work as a cool down (with a timer) for the turbo and other engine parts.

I know the majority of drivers don`t let the engine idle for a few minutes after a hard drive on the highway, or pulling a hill to cool down the turbo and stabilize the heat in the eng. so this might help some.

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

This looks like a good product. Although I don't see the price anywhere on their website.

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1993 W124 300D 2.5L Turbo, OM602.962
2000 Chevrolet Cavalier, 2.4L DOHC
2002 Ford Explorer, 4.0L SOHC
2005 Toyota Prius, 1.5L

http://www.fuelly.com/sig-us/40601.png

This is another interesting article, even if it is for motorcycles.

Turbo Electric Oil Feed and Scavenge Pumps

I'd like to build something like this for my MB.

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1993 W124 300D 2.5L Turbo, OM602.962
2000 Chevrolet Cavalier, 2.4L DOHC
2002 Ford Explorer, 4.0L SOHC
2005 Toyota Prius, 1.5L

http://www.fuelly.com/sig-us/40601.png

This seems like a solution for vehicles that sit for years at a time without being started. The best way to store a car long-term is to drive it.

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'98 E300 turbodiesel

For new members


.

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ASE Master Mechanic
asemastermechanic@juno.com

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Vehicle build.
Fleet Durability
Technical Quality Auditor.
Automotive Technical Writer

1985 300SD
1983 300D
1984 190D
2003 Volvo V70
2002 Honda Civic

https://www.boldegoist.com/

When I first joined the TDR about 10 years ago, pre-lube devices were the rage. Unfortunately, many were frought with problems, they wouldn't work when they were most needed, in extreme cold. There is also the possibility that an external line could fracture or break, dumping your oil all over the ground. All the pre-lubing in the world won't help that problem.

Pre-lubers have been virtually unmentioned in years. IMO, for the class of engines we're dealing with here, they're simply not necessary.

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'83 300D, 126K miles.

I recycled it for a member.
OM617 - no oil pressure when cranking

Unless they sit without oil for some extended period, or sit dumped over on their side for storage, oil pumps dont generally lose prime. Typically we pack them with grease during assembly and they prime on start up. Not all engines have oil pumps that can be externally driven as on American cars.

All we need to do is get some quantity of oil into the pump from above and it should take off and pump. Oil galley, oil cooler feed line, oil filter feed port, or wherever will work.

As far as preoilers, IMHO all lines should be high pressure hydraulic lines at least equal to OEM quality, and properly routed. One way check valves should also be in place to prevent back flow, not only while the engine is running, but also in case a line blows.

Installed properly they should not be a detractor or cause any potential problem. They could however create great gains in engine longevity. There are examples of engines that have run continuously for over 3 decades with flying oil changes and in service maintenence, never once shut down, that showed very little wear. We know that cold starts create the greatest wear and we also know its due to oil starvation. A prelube pump and after shutdown pump can play a big role in turbo charger life, especially in the shut down mode. Shutting down a hot turbo allows the spool to keep turning after oil flow stops, as well as coke deposits to form as the turbo hot section heat soaks. Keeping a flow of oil to the turbo after shutdown, can greatly increase their life.