Ontario Turbine Servicing - Page 3 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 11-16-2015, 08:10 PM   #21
KAPTAN KAOS
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Re: Ontario Turbine Servicing


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I think the rpm starter at 100% is too low if set to 17k. Set it to about 25k but keep the starter off set at around 19.
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Old 11-16-2015, 11:30 PM   #22
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Re: Ontario Turbine Servicing

I honestly just think the starter maxs out literally at 17000 on 8.4 since it stalled there both starts with the starter 100%/cutoff at 17000/22000 and 12000/17000 so the starter was 100% and completely off which means the starter has nothing left to give. With a 30% loss of system voltage comes probably amperage loss as well so the starter can't dish out the power it puts out on the factory 12 volt system. If I spin the starter any faster the backemf just overpowers the battery voltage and brakes the clutch which probably disengaged it on the first run. It does spool up to 17k at a decent rate though so if I lean out the fuel ramp which technically should produce more power, it should just keep going as the starter will be out of the way at 17k anyways. The EGT was around 450 when it initially gets stuck at 17k and it caught around 650 so I got room to lean it out. If its already at 650 when it gets to 17k it should just keep going. I'll try it this weekend if the weather is clear. Wish me luck. Any improvement at this point will earn it a hug lol.

Last edited by rcx_6000; 11-16-2015 at 11:37 PM.
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Old 11-16-2015, 11:35 PM   #23
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Re: Ontario Turbine Servicing

I wish I could rename the topic as the current one is completely useless now. If possible can an admin rename it "AMT 450 troubleshooting starting issues" or something along those lines lol. Thanks, I'm off to bed.
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Old 11-19-2015, 12:48 PM   #24
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Re: Ontario Turbine Servicing

Think I got it the best its gonna get, starter turns off at 16k and it takes like 30 seconds to go from 16k to 18k and then it spools, flame isn't too bad, now I just have to find a faster starter motor to get that extra bit I need that fits in the can. I maybe even try manual air start just to see if its worth the extra effort.
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Old 11-21-2015, 04:22 PM   #25
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Re: Ontario Turbine Servicing

Got it to start and run perfectly, just waiting for the festo line to show up so I can set my pump limit properly with the right lengths, etc.

Pump Start Point AUTO+2
Pump Start Ramp 5
Glow Plug Power (Volts) 1.6
Start Gas Adjust 100
Low Batt Volts 6.8
Starter Power at Ign 75
Max Ignit RPM 4000
Min Ignit RPM 2000
Preheat Delay 5s
RPM Gas Off 25000
Starter Power at FuelRamp 200
RPM 100% Starter Power 12000
RPM Off Starter 26000
RPM to Reconnect Starter 25000
Start Mode Auto-Gas

Run
Full Power Speed RPM 112000
Idle Speed RPM 28000
Stop Speed RPM 20000
Start/Run Temp C 100
Max Temp C 800
Accel Delay 10
Decel Delay 10
Stability Delay 100
Pump Limit 900
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