Everything You Need to Know About a Deutz Air-Cooled Diesel

Deutz Allis in the shop for a valve set, let's go over it while it's here.

What's cool about an air-cooled Deutz diesel? Everything you want to know.

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[Maus]

Absolutely bulletproof engines. When I was in the army, all the old generators had those engines. Their super loud but ran forever.

[mathewmerkl]

With the deutz numbers

B- means its turbocharged
F- means its in a mobile vehicle
6- number of cylinders
L- means its aircooled (luftgekult)
9- series of engine
13- the stroke of engine in millimeters (130mm)
:)

[cudwieser]

Another reason for the legendary status of a Deutz engine is because the company was founded by Nikolaus Otto, originator of the 4 stroke engine. The engines are the originators and a century of work really stands for something.

[rick]

I still run 4 of them. A f4l913 a f4l912 and 2 f3l912's. They always start and never have any problems. Awesome engines.

[marcVdiesel]

My neighbour runs a Deutz combine (M36.30) from about 1985, with a BF6L913 engine. Started it up after about 10 months and started right up. Great engine, doesnt smoke and doesnt use oil. Runs and pulls great after almost 40 years.

[patrickwelch]

Loved the Deutz engines, when I was running a rental yard for a pump company the air cooled deutz diesel had the least issues, fastest to fix and simple to diagnose unlike all the CAT and John Deere ones we had

[rhtplantservices]

One of the best diesel engines ever made absolutely bomb proof and use hardly any fuel

[sscottphillips]

Always a good joke with new mechanics in our shop is to go check the coolant on the m88 recovery tank, has a continental air cooled v12.

[goliathprojects]

I own a Deutz D6006 wich runs on the F4L912 engine. It's really time I learn something about it, cause dad is now gone and I don't want this wonderful machine to die as well. It deserves to be taken care of.

[vadokunvot]

I have a 1980 Deutz D7206, I love it, its strong, it allways start, it has never let me down.

[gregculverwell]

Love Deutz aircooled engines. Very tough.
Decades ago I was driving a truck with a FL914 (12l 232hp v8) when I had a runaway down a long steep hill.
The tacho went around the dial and Back to 600 on the other side. The only damage was that the rockers smashed through the covers, so the engine was covered in oil (easily fixed with some braizing).
One thing I thought was very cool was that it used a centrifugal separator built into the fan hub instead of an oil filter. Seemed to work very well - would take out a 5mm layer of black rubbery material at each service.

[Spark]

We're still having an old Deutz D50.1S (F4L812) running and performing real work almost every day since 1964. The 9.999 working-hour counter already went around 2 or 3 times. Never seen a tractor so reliable in my entire life. Absolutely love the thing.

[lawnmowermanlawnmowerman]

I worked at an AG-Allis dealership for 10 years as a mechanic when these tractors were what we sold, they were much stronger than the equivalent size John Deere and most other competitor brands at that time and they are the easiest diesel engine to repair that I have ever worked on. And you are correct that they were extremely durable and still are too.

[MrMopar]

I worked and now retired for Wagner Mining Equipment co, Portland Oregon now owned by Atlas Copco of Sweden as a diesel mechanic we used a lot of Deutz Diesel engines . That 6 cylinder we used in our 2yard machine. We also used V6, V8, V10 and V12 . We would also install altitude comp kits which where turbocharged engines going to mines basically in South America that where at 6000 Feet elevation. Also we had special hydraulic oil coolers that bolted on top of the V-engines. They are good engines like everything else properly maintained and change the oil they run for a long time. I don’t know if they still make them but one thing is for sure they are widely used outside the U S around the world and parts are readily available for them.

[JimNichols]

1970 Deutz 8080 bought it for 800 bucks, new tires, new rear gear reduction seals, new rear brakes and this was a beast of a maching. Small farms in East Tn didn't need these huge machines (huge for the day) and this one came from the big farms in west Tn. I used it to pull an old 10 ft flailditioner that weighed what a Panzer tank weighed and gobbled all the HP you could send it. I miss those 400 bale of hay by yourself days sometimes.
Great videos, lots of trouble to record, edit and produce sir and I appreciate it. And that acid sense of humor, man this I miss the most, folks like you I share some commonality with. Thank you man.

[darcybowyer]

Even down here in Australia farmers still use these old school Deutz aircooled tractors, bulletproof and simple. If every manufacturer followed the KISS principle everything would be perfect!

[Not_Loading]

I work in a diesel shop building diesel generators and we deal a ton with Deutz offroad diesel engines. Absolutely love them

[jonbarfield]

This engines are used heavily in Ditch Witch and Genie man lift. I worked for a rental store and they had many of them.

[zachgunnink]

From my experience they are excellent on fuel also. Years back I have a 2 cyl deutz bobcat ( 731 Maybe?). Would run like a 1/4 gallon per hour in regular use. Now I have an 873 bobcat and an S220 bobcat. The 873 (Duetz) seems to be nearly twice as efficient as the 220 (Kubota). Both good units but cant beat that duetz for fuel efficiency. great video.

[mikestrucks]

Nice video 👍🏻 I used to have a old bobcat with a 2cyl Deutz engine.. never ever any issues 💪🏻