Teching 4-Cylinder Mini Diesel Engine Model – Main Assembly Completed!

[Potaka]

Just wanted to share my progress on the Teching OHV 4-cylinder mini diesel engine kit. I’ve finished the main assembly of the model — the block, pistons, crankshaft, and camshaft are all in place now. It’s been an awesome build so far!
The precision of the metal parts and the working mechanism really make it feel like a tiny, real engine. I’m amazed how smoothly the pistons move when I turn the crank.
Here are some pics of the current build (see attachments). I still have some smaller details and final touches to add, but the core is all together.
Has anyone else built this kit or something similar? Would love to hear your tips or experiences! Also open to suggestions on what to tackle next.
Thanks for checking it out!

[Potaka]

It’s been a while since I last built a model—guess this one’s going to take me a bit more time than usual...

[Potaka]

Just wrapped up the final assembly of the Teching OHV 4-cylinder mini diesel engine. Everything’s now in place, including the valve rocker arms, timing components, and small finishing touches. Spinning the crank and watching the full mechanism in motion is honestly so satisfying—cams, pistons, valves… all working in harmony!
I’m really happy with how it turned out. Took a bit of patience and a few moments of “where did that tiny screw go?” panic, but it all came together in the end 😄

[Potaka]

Just wanted to share a bit about my experience putting together the Teching OHV 4-cylinder model. Overall, it’s a really cool kit with solid metal parts that feel quite authentic, like a real little engine.

That said, it wasn’t without its tricky spots:
Some of the tiny parts — especially the valve rocker arms and springs — are pretty delicate. Took a few tries to get them all seated right without messing anything up.
Getting the timing right between pistons, cams, and valves took some fiddling. I had to keep double-checking the marks and spinning the crankshaft to make sure everything moved smoothly without sticking.
A lot of the metal parts fit really tight, which is great for realism but means you have to be patient and careful so you don’t force anything.

But honestly, once it was all running nicely, it felt super rewarding. Watching those pistons go up and down and the valves open and close was almost mesmerizing — like controlling a tiny real engine!

I’ve done plastic models before, but this working metal engine was definitely a step up in terms of mechanical complexity. Learned a lot about how engines actually work just by building it.

I’d recommend this kit to anyone who likes detailed builds and wants something functional to show off. Feel free to ask if you want any tips — happy to help anyone else building one!

Edited July 4 by Potaka

[Dragline]

I have always wanted one of these. I know they are pricey, but why not?

Following along. And your work is tight

 

[Potaka]

2 hours ago, Dragline said:

I have always wanted one of these. I know they are pricey, but why not?

Following along. And your work is tight

 

This kit is actually quite affordable for me and everyone. Honestly, if 3D printed models were really pricey, I don’t think many people would be buying them. If you’d like, I can help you find a purchase link.

[Dragline]

Please, by all means..

[Potaka]

43 minutes ago, Dragline said:

请务必...

Here’s the link where I bought mine:
https://www.stirlingkit.com/products/teching-workable-mini-diesel-engine-metal-model-kits-diy-ohv-4-cylinder-engine
Feel free to check it out if you’re interested. I think there’s even a discount going on right now. Up to you.

[Dragline]

Gracias Amigo...