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P300 RX poping at Idle

Old 10-30-2019, 02:17 PM
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j.c.a.
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Default P300 RX poping at Idle

Hi just installed a P-300RX which came back from service, at Start up I get plenty of flames and at Idle there is quite a bit of poping , any suggestions would be greatly appreciated.
I am using diesel,

Thanks in Advance

J.C. Alvarez
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Old 10-30-2019, 02:37 PM
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Dave Wilshere
 
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Did you do a full power run? Its gone back into an airframe it was in before, where its didn't 'pop' in the tail pipe? It was always run on Diesel?
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Old 10-30-2019, 02:44 PM
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Hi Dave, thanks for nthe quick reply,
1. Yes I did a full power run up and no problems it accelerates just fine and reaches 104000 rpms
2. no it is not in the same airframe gap at pipe is 1 inch approx. 25 mm
3. no previously I ran on Kerosene
thanks
J.C.
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Old 10-30-2019, 10:05 PM
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OK. Gap is too small. What dia pipe? If it’s around 105mm the gap should be 40-45mm

Dave
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Old 10-31-2019, 08:01 AM
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Originally Posted by Dave Wilshere View Post
OK. Gap is too small. What dia pipe? If its around 105mm the gap should be 40-45mm

Dave
Hi Dave, the Diameter on the pipe is 100mm, Today I will try to move turbine forward and also try kerosene before I move it.
I have heard that some Jet Cat Turbines do no run good on diesel is correct ?

Once again thank you,

J.C.
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Old 10-31-2019, 11:36 AM
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I’ve never used Diesel, I thought only the smaller turbines were fussy on fuel. Gap will add a bunch of power and should help on the air popping
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Old 10-31-2019, 04:07 PM
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Hi Dave, tried kerosene and poping improved 90 % , I then moved the turbine as you suggested poping is still the same with 90 % improvement, I also tried the diesel again and poping returned.
Going to run it on kerosene .

Once again thanks for all your help

J.C. Alvarez
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Old 10-31-2019, 10:13 PM
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Get a new pump.
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Old 11-01-2019, 01:43 PM
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Originally Posted by Springbok Flyer View Post
Get a new pump.
Hi , Why do you suggest getting a new pump? reason I ask is a new pump here in the US is $499. and if that does not fix problem its not returnable I don't mind spending the $499 just want to be sure this solves the problem.

Thanks for the input
J.C.
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