Prestart oil prime of a long storage engine can save your bearings and bank account.
 

Hello Everyone
Don't destroy your engine bearings.
Prestart oil prime of a long storage engine can save your bearings and bank account.
Anyone with questions, feel free to call or e-mail as needed.
This is only a generic engine drawing, to illustrate the concept.

So are you suggesting that if someone wanted to install a ' preoiler' that would be the best place to have the " in line" ?

Years ago while on a car rally, I met a fellow with a Ferrari, whos engine was converted to run with electric oil pumps. He removed the oil cap (engine not running) so I could "look inside" as he toggled a switch on his dash. A hummmmmmm and the oil followed.

He looked at me and said......"For what this baby costs, I am not going to let it run dry fo even a second".

No idea of the value in the MB diesel.

Don

Hello leathermang
This is going to be confusing for some people.
Note:
The post is Prestart oil primers for long storage engines, not daily driver.

To answer your question leathermang:
I have permantly installed forty or fifty preoilers on gas engines; with a T on the oil pressure sensor port as shown.

I have permantly installed eighteen on diesel engines; usually with a T on the oil pressure sensor port as shown, but there are exceptions.

I have temporaroly installed Prestart oil primers; on more engines than I can count; exactly as shown, with a T on the oil pressure sensor port.
A prestart oil primer is to refill the journals, and flush the trash oil out of the engine, before you start the engine.
After you fill the journals and flush the bad oil, install the drain plug, when oil can be read on the end of the dip stick, you can crank the engine.
You can leave the primer pump running (do not let it suck air).
I do not recall how many engines I ran off the primer pump

On the old domestic gassers we just use an old hacked off distributer drive shaft chucked up in a drill to run the oil pump, instant prelube. :)


I've known more than a few people to toast bearings on motors sitting a long time like that, this is fine advice.

I've always liked the idea of a permanant preluber. There are more than a few on the market, and it's not hard to fab them up.
Another one of those "I'll get to it eventually" things.

Oil sensor port is a good location: it's downstream of the engine's oil pump and the engine's oil pump will act as a check valve (with a small leak). Pump the oil into the sensor port and the engine's top end gets lubed, too. One of those el-cheapo water pumps that you stick in a drill works OK with the 15W-40 oils. As whunter says: get the new oil to run out of the drain plug and you're done. Up here, with the winter stored farm tractors and trucks, we then stop, put the pan plug in, fill with fresh oil, cold crank for a couple seconds to make sure the pistons are free (oil has been put in the glow plug holes in the fall), then glow and start.

Using a distributor shaft on most of the MB diesels and other engines for that matter is impossible. The oil pumps are chain driven.

Pre oiling a long storage engine is a VERY good idea and worth the trouble IMHO.

Have a great day,

Wow nearly 5 years since that last post.

An easy alternative would be to go out and run the engine once or twice a month for a little while. :D

Yes
 

However, I have used this on engines that have been abandoned for sixty years = barn finds.

If they have been sitting that long I would be more concerned about rust formation in the bores, but pre-lubing can't hurt!

I leave my 85 low mileage engine sitting for about two weeks at most between starts. But i do that often. Its not a DD


Would you suggest installing this? Or just take the effort to start it more often

For those not willing to do as in you pic they could at least do an oil change; remove the Glow Plugs squirt oil into the holes; wait for said oil to get down to the pistons and crank the Engine with the Glow Plugs still out of the Engine until the Oil Pressure is up.
The same for a newly rebuilt Engine except that you should rotate the Engine by hand min of 2 complete turns to make sure nothing will hang up inside the Engine.
Also I would not carnk an Engine over if the fuel in that tank has also been sitting there for years.

In a pinch, turning the engine over with the starter while pulling a vacuum on the shut off valve with a Mity Vac or your mouth, will keep the engine from starting until oil pressure builds. Not as good as a pre-oiler but not as bad as starting an engine right away.

new links
 

http://www.google.com/search?hl=en&rls=com.microsoft%3Aen-us&q=electric+pump+oil+&btnG=Search&aq=f&oq=&aqi=

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