Supporting > Engine Ancillaries
Fuel injection systems
Admiral_dk:
It runs very nicely - stable RPM and sound :ThumbsUp: :ThumbsUp:
Shame that we can't see the injector and pump in the video ....
So I will have to ask - do you have direct injection or is it into a hot Bulb / PreChamber ?
Minh Thanh:
cnr6400 !
Thanks !
Admiral_dk !
At 20 seconds of the video, you can see the pump
I spray directly
I put a lot of oil in the engine to prevent damage to the pistons and cylinders when the engine warms up ( I'm not sure ;D ) because I didn't install the water pipes
so when the engine runs it bleeds oil
Minh Thanh:
Hi Roger !
I forgot this
Your injectors are pretty good, maybe even better than mine
so just focus on the valve, pump cylinder
If the pump is ok (creates enough pressure) and the valve is closed I'm sure your engine will be fine!
Roger B:
Congratulations :praise2: you must be happy with the first runs :)
I need to find some more time to spend on my engines ::)
Roger B:
A little more progress :) I received some MOD 0.4 rack and pinions for a reduced size helix pump. 0.5 is easy to find 0.4 was rather more difficult :headscratch: I can now confirm the dimensions and finish the design.
I then tried one of my diamond ball laps on the delivery valve of the test pump (I have a fine Email thread titled Diamond Charged Balls). The instruction said use a little light mineral oil and if possible don't apply any side pressure. I used the floating reamer holder and lapped for a couple of minutes at 500 rpm. After cleaning and reassembly there was no leakage and the system held it's prime for several days :) :)
Next I will repeat with the pump from the two cylinder petrol engine before moving onto the diesel.
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