[WIP] Porsche Diesel Junior

[MP LEGO Technic creations]

It only took me about one day to get bored during the pre-Christmas time, so I decided to start yet another project - this time, however, at least a smaller one 

After a few (unfinished, of course) cars, I'm back with some farming equipment, specifically a Porsche tractor.

At first I felt a bit skeptical about functions as the model wasn't going to be particularly large and I did not intend to compromise the look, therefore I went for the cutest, single-cylinder variant called Junior, as the smaller engine provides a little more space to work with.

Functions implemented so far:

• Front wheel steering via steering wheel
• Pendular front axle
• Single-cylinder engine - driven by the rear axle via a 2-speed gearbox
• Rear PTO with neutral - driven by the rear axle
• Rear three-point hitch

At the moment, around 550 parts are used - there are some quite detached or not so well supported sections, though.

 

While the current bonnet might not have the exact same curves compared to the original, I like the use of the single-piece windscreen.

 

The current state of progress (after I've realized that the old 2L gearbox rings are not compatible with the fairly new clutch gear sizes ):

And the layout of all mechanical functions:

Thanks for visiting & Enjoy the Christmas time 

[Davidz90]

Absolutely love the old school Technic structure! 

Merry Christmas 

[Paul B Technic]

Love it, looking great.

[Thirdwigg]

Very cool! One of my favorite things is the one module offset the 20:16 gear connection provides. I love how it is used twice here to add in some great functionality. 

[Jurss]

It lloks really good, I like it.

To make it more authentic, closer to original, there are those narrow tires now available, with the same height. And isn't there really parts to make tip front of bonnet more rounded? This maybe LEGO PART 5906 Brick Round Corner, Curved 2 x 2 x 1 2/3 Quarter Dome with 1 Cutout - Red | Rebrickable - Build with LEGO

[MP LEGO Technic creations]

18 minutes ago, Jurss said:

And isn't there really parts to make tip front of bonnet more rounded?

There indeed are ways to make the top significantly more curved (e.g. using quarter dome parts), however I am not sure about the overall seamlesness of the front if done so.

Front axle uses a pair of these wheels, there hasn't been any narrower variant, has it? I might've confused it with another wheel/tire combo, though.

Edited December 22, 2025 by MP LEGO Technic creations

[Jurss]

30 minutes ago, MP LEGO Technic creations said:

Front axle uses a pair of these wheels, there hasn't been any narrower variant, has it? I

Sorry, with that cover looked like some other. Then just, maybe, Vespa wheels, but they are larger in diameter.

[Jundis]

Brilliant little tractor, especially capturing the iconic form!

The front really is a tricky bit, als the upper shaping is more curved but flattens out quikly. You picket the right compromise with the large windscreen piece in my opinion.

About the wheel: If we would get the new big motorcycle tires with chevron or offroad-pattern for back wheels, then the old small motorcycle tires as front tires would be matching the size. But it would be hell of a big model :D

[vascolp]

Pretty cool! I like how you turned the orange gear shifter in a steering column shifter!

[Aleh]

At least this is not another 911.
This tractor looks very good, mechanics looks smooth working and compact! Waiting for the MOC to be finished!

[Zerobricks]

When I saw the headline, I did not know what to expect. Safe to say, I was pleasantly surprised. It's nice to see some farm machinery and especially when it's as functional as yours. Now if there was only a way to get thinner front wheels...