My new project ...Small diesel engine .

[Minh Thanh]

Thank you !
 
  Hi All !
An update!
I'm sorting out, thinking...everything related to the model engine - more crazy than I know how to do it...,
 So progress is a bit slow
Some pictures...for now

[Kim]

It looks really nice, Minh!   

You must be getting close to a first run?

Kim

[CI]

It looks great !

.

[Minh Thanh]

It looks really nice, Minh!   

You must be getting close to a first run?

Kim

Thank you Kim !
 Yes, just water pump and fuel tank and the engine is done
Some tweaking and excitement for ...

It looks great !

.

  Thank you !

[Roger B]

Looks great    good luck for the first start 

[Minh Thanh]

Hi All !
 Update..
just a notice .
The engine is done and it runs but not good .
I am working on the injector issue
With this engine I tried to limit the fuel flow to the smallest possible (smallest I can do - for now,..future = unknown  ) by making the pump cylinder diameter 1.75mm so I am trying to solve the atomization and have some improved
I will update with pictures and video when everything is done, about 1 week from now

[Admiral_dk]

I wish you all the luck with your endeavors and hope for a satisfyingly result.
I know it is not easy - but as you are one of the few I know of, who have made running Model sized Diesels Engines that runs 

Per           

[CI]

It is quite a challenge, no doubt, to get an engine like that wrapped up.
Best of luck on it; I am sure you will prevail in the end.

.

[Minh Thanh]

CI , Admiral_dk , Thank you !
 
An update:
The engine ran pretty good and,,..suddenly lost compression
I checked and the condition is the intake valve is not sealing - This is the first time I have encountered this condition 
I will rebuild a new cylinder head and new injector with a little change....which i think would be better , and it will be the standard size for my other projects
 

[CI]

To get an engine of that complexity to run in any fashion is a significant achievement.
I hope to build a diesel one day, and so it is good that others can perhaps define the difficulties involved.

.

[Admiral_dk]

Looks like you need to change Gasket Material 

Great to hear that it ran well just before the mishap 

Per           

[Zephyrin]

how come there is so much soot in this combustion chamber, certainly no good for valve sealing...
but I'm sure you'll manage to get it running, apart from you, very few people can do it!

[samc88]

Congratulations on getting it running, Im sure you will sort the teething issues out swiftly. Are you running on pump diesel? Not quite the same but when running my no.12 stove on diesel it is much sootier than if burning parrafin/ kerosene, would the fuel make a difference in this engine with sooting up the valves?

[Mike R]

Congratulations on a running engine, working through the issues is all part of the fun. Looking forward to hearing more about this engine from you.

[AlexS]

One step further!

Maybe you can make a head gasket with a sheet of CNAF. Resistance to temperature range up to 400 deg C or higher. CNAF include NBR material resisitance to oil/fuel and have aramid fibers for strength. Pressure sealing around 70-150 bar.