Kolibri fuel ramp
#26
Join Date: Sep 2006
Location: Namsostrondelag, NORWAY
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Sounds like it's only running on gas. Check the fuel filter, they sometimes jam if you get the little filter inside in the wrong position. Also the valves and finally double check so that you are feeding the fuel to the fuelport and no the gas port ;-)
You can also try the pump by unplugging the fuel tube from the engine and running the primeing command by giveing full throttle for 5sec, fuel should some out then.
The fuelramp starts on 100(I think) and slowly advances until idle which usually is between 150 and 190 on this engines. Starter goes out at about 50000rpm
You can also try the pump by unplugging the fuel tube from the engine and running the primeing command by giveing full throttle for 5sec, fuel should some out then.
The fuelramp starts on 100(I think) and slowly advances until idle which usually is between 150 and 190 on this engines. Starter goes out at about 50000rpm
#27
I have tried and tested all that. The filter is OK, fuel is coming thru,It`s getting fuel, but very little happens with the pump. It (the pump) is running, but very slowly.Not providing enough fuel to the engine........ So, it really never starts at all. I`m running out of ideas here.....
#28
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Thank You. I will try and see if it helps
#31
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I Carl,
I own 3 lamberts and have found them to be extremely good starters.
What I think is going on here is that you have got too much gas going to the engine so on start it is effectively running on gas and not kero.
this is why it wont ramp the fuel pump...ask me how I know this
What you need to do is get yourself a festo needle valve and put in the gas line, set it so the engine light off reliably and you get an increase in exhaust temp but that's all you will need very minimal flow.
If you just turn the gas on and let the solenoid valve feed gas to the engine it will give it full gas pressure which is way too much for a little engine, a bigger engine will not handle full gas bottle flow.
Also put all the parameters back to the way it was.
Hope this helps
Kind Regards
Craig
I own 3 lamberts and have found them to be extremely good starters.
What I think is going on here is that you have got too much gas going to the engine so on start it is effectively running on gas and not kero.
this is why it wont ramp the fuel pump...ask me how I know this
What you need to do is get yourself a festo needle valve and put in the gas line, set it so the engine light off reliably and you get an increase in exhaust temp but that's all you will need very minimal flow.
If you just turn the gas on and let the solenoid valve feed gas to the engine it will give it full gas pressure which is way too much for a little engine, a bigger engine will not handle full gas bottle flow.
Also put all the parameters back to the way it was.
Hope this helps
Kind Regards
Craig
#32
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Thank You. I can check your theory tomorrow. I never use much gas-pressure from the can, but had word from other users it is important to let the solenoid do the job instead of trying to manually controlling the gas. On a few occations I have experienced the gas not igniting at all when opened too little. On starting attempts the gas ignites, fuel ramp starts (some fuel is being pumped thru) but the ramping-session never completes up to stable idle. The few times this happens, (GSU reads "running") advancing throttle results in a flame-out. This leads me to belive there`s not enough fuel delivered - or am I wrong?
As said, I will test gas-flow to morrow, but I haven`t my hopes up too high to tell the truth.........
As said, I will test gas-flow to morrow, but I haven`t my hopes up too high to tell the truth.........
Last edited by tow; 09-16-2013 at 03:04 PM.
#33
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I've never used the solenoid to control the gas flow. I just open the can carefully untill I hear the gas igniting and leave it there until about 50 000 rpm and it has never failed to start. I also run without a solenoid in the fuel line trying to keep things simple ( I use a Festo ball valve to block the fuel line during refueling).
#34
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Well, I eventually got it to start (and run) by carefully monitoring the gas-flow (I am using the solenoid-valve) BUT - I often get a flame-out when applying full power. PW is 154 on idle - is that high? I may have a pump-problem after all - and no, there is no air-bubbles in the lines...
#37
I just purchased a T35 at jetpower and tried to start it today. I had a few problems initially as it wouldnt go beyond fuel ramp. I realized I was opening too much gas..Now it is starting and runs fine at idle of 97-98k. At this rpm the pw is 181-183. I let the engine run at idle for abt 2-3 mins because its new and then slowly advanced throttle.. I find that at about 130-132k rpm with the pw around 260-270 it quits and the message "speed low" flashes. This has happened in the 4 starts I did this evening. What could be the problem here? All parameters are as per factory setting. Accel delay is 020, Decel delay is 013, stability delay 043. Idl rpm is 97k, max rpm is 244k, stop rpm is 70k. Start/min temp is 100C, max temp is 900C.
thanks in advance.
thanks in advance.
#40
#41
I just purchased a T35 at jetpower and tried to start it today. I had a few problems initially as it wouldnt go beyond fuel ramp. I realized I was opening too much gas..Now it is starting and runs fine at idle of 97-98k. At this rpm the pw is 181-183. I let the engine run at idle for abt 2-3 mins because its new and then slowly advanced throttle.. I find that at about 130-132k rpm with the pw around 260-270 it quits and the message "speed low" flashes. This has happened in the 4 starts I did this evening. What could be the problem here? All parameters are as per factory setting. Accel delay is 020, Decel delay is 013, stability delay 043. Idl rpm is 97k, max rpm is 244k, stop rpm is 70k. Start/min temp is 100C, max temp is 900C.
thanks in advance.
thanks in advance.
#43
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It`s Georges all right! A little dissapointed I have to admit, - but I certainly hope the issue is solvable, by HAB or Lambert. I`ve been looking forward to flying the Kolibri, but now I may have to wait until spring.......... :-/
#44
No need to be disappointed! I heard that HAB had your engine and I talked them in to test the engine today to beeing able to send it back ASAP. It was some how soaked in fuel upon delivery, after a quick cleanup it did start and run flawless on the first try. It makes alot of power too for and old T25, almost 2.9kg at 15Celcius ambient temp. :-) Maybe it was just some easy error as temp probe connector polarity or so. So please contact HAB and advice what you want next. Return shipping or any other things done before shipping back.
I would also advice to route the wiering outside the FOD guard to prevent interference and cables rubbing against the metal mesh.
http://www.youtube.com/watch?v=BA8oJqGOKHQ
I would also advice to route the wiering outside the FOD guard to prevent interference and cables rubbing against the metal mesh.
http://www.youtube.com/watch?v=BA8oJqGOKHQ
Last edited by Henke Torphammar; 09-29-2013 at 07:30 AM.
#45
#46
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So you are saying no apparent fail? That really puzzles me.........I could not get it to run, my friend up in Østersund (who by the way shipped it in to HAB for me) could not get it to run...... I eventually managed to get mr. Lambert on the phone, and he strongly adviced against using Diesel on this motor as it would clog up the nozzles as he stated. I also do not understand how the temp probe could get wrong since the polarity is clearly marked?? This I simply do not understand. As for running the cables away from the mesh, this I will do, but troubles started before I installed this FOD-guard so it should not have any significanse.
#47
So you are saying no apparent fail? That really puzzles me.........I could not get it to run, my friend up in Østersund (who by the way shipped it in to HAB for me) could not get it to run...... I eventually managed to get mr. Lambert on the phone, and he strongly adviced against using Diesel on this motor as it would clog up the nozzles as he stated. I also do not understand how the temp probe could get wrong since the polarity is clearly marked?? This I simply do not understand. As for running the cables away from the mesh, this I will do, but troubles started before I installed this FOD-guard so it should not have any significanse.
The festo for the fuel line were a bit hard to work with, maybe ask HAB to send a new one or replace it for you?! It still works but a bit harder the usual.
Last edited by Henke Torphammar; 09-29-2013 at 09:20 AM.
#48
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Worked out of the box. Only things changed were the parameters in the ECU but that you tried your self too. Now adjusted to what we can call default. I found the fuelramp were set very low to 11 and acceleration delay was a bit high at 30. Else nothing, works flawless. We also added the little cu washer under the glowplug, something Lambert now advices to do.
Parameters were set back to as George had them. The festo-coupling I noticed too. Still doesn`t get my head around why the motor refused to run in my hands.......... ???
The festo for the fuel line were a bit hard to work with, maybe ask HAB to send a new one or replace it for you?! It still works but a bit harder the usual.
Parameters were set back to as George had them. The festo-coupling I noticed too. Still doesn`t get my head around why the motor refused to run in my hands.......... ???
The festo for the fuel line were a bit hard to work with, maybe ask HAB to send a new one or replace it for you?! It still works but a bit harder the usual.
Last edited by tow; 09-29-2013 at 11:21 AM.