Jet Cat 120 repair
09-21-2011, 10:12 PM
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Jet Cat 120 repair
I received old Jetcat 120 from friend to test
i found this problem and i'm fixing the problem
stick tube broken
egv in not good condition
internal exaust cone hole broken
replace stick
laser stick soldering
cleaning CC
Internal cone repair
New EGV
re-balance
i found this problem and i'm fixing the problem
stick tube broken
egv in not good condition
internal exaust cone hole broken
replace stick
laser stick soldering
cleaning CC
Internal cone repair
New EGV
re-balance
09-22-2011, 03:26 AM
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RE: Jet Cat 120 repair
This is a good indication of what happens if you have a needle or vap tube problem the others have to work harder to produce the rpm the ECU wants and so run a lot hotter in the CC, causing the cracking of the NGV.
Chrigui, what did you use to clean the CC
Chrigui, what did you use to clean the CC
09-22-2011, 03:45 AM
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RE: Jet Cat 120 repair
the original egv was reduced in diameter (i dont know who has done the work... ) and the thickness was only 0,25 mm
maybe to fit in the non original flange stick support
with high temp the egv cracked..also i found the gap between turbine wheel and egv was over 0,6mm in radius
(maybe modified to eliminate turbine touching egv)
i know that engine was buyed by ebay in holland...
i clean with fine sand and washed....alternative is ultrasound when carbon deposits are less than in the photo
maybe to fit in the non original flange stick support
with high temp the egv cracked..also i found the gap between turbine wheel and egv was over 0,6mm in radius
(maybe modified to eliminate turbine touching egv)
i know that engine was buyed by ebay in holland...
i clean with fine sand and washed....alternative is ultrasound when carbon deposits are less than in the photo
][
09-22-2011, 05:29 AM
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RE: Jet Cat 120 repair
ORIGINAL: basimpsn
Im very impress the NGV guide vanes are still intact even with a bad CC. We need a RCUNIVERSE home turbine repair Forum
.
Im very impress the NGV guide vanes are still intact even with a bad CC. We need a RCUNIVERSE home turbine repair Forum
.
Chrigui maybe you will post a link to this thread on it as well.
09-22-2011, 06:18 AM
#11
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RE: Jet Cat 120 repair
(DIY Turbine stripdown & Maintenance)
It would be my new addiction
. Chrigui good repair work. I am learning something new since the (HOW ITS MADE) video for example the P-120 uses 6 burner not sure if the new P-120 SE using 12 sticks.
By the way nice work also on machining the new NGV. What material are you using?
It would be my new addiction
. Chrigui good repair work. I am learning something new since the (HOW ITS MADE) video for example the P-120 uses 6 burner not sure if the new P-120 SE using 12 sticks. By the way nice work also on machining the new NGV. What material are you using?
09-22-2011, 07:21 AM
#15
RE: Jet Cat 120 repair
ORIGINAL: chrigui
ngv is cast made from Albisser...
ngv is cast made from Albisser...
I always though the hot sections were made for Inconel
http://en.wikipedia.org/wiki/Inconel
09-22-2011, 07:26 AM
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because I couldn't find (Albisser) with Google 
. Here is my attempt at a 12 injector CC
09-26-2011, 09:09 AM
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RE: Jet Cat 120 repair
Good work, chirigui.
I have repaired this JC 120SE ( 6 sticks ). The NGV was in very bad condition. I have used a cast NGV like you, but this is a chinese one. It´s casted in inconel 713C, very very dificult to machine.
Regards.
FĂ©lix
I have repaired this JC 120SE ( 6 sticks ). The NGV was in very bad condition. I have used a cast NGV like you, but this is a chinese one. It´s casted in inconel 713C, very very dificult to machine.
Regards.
FĂ©lix
09-27-2011, 12:02 AM
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RE: Jet Cat 120 repair
I think Albisser NGV are not inconel, usually NGV are made from high grade SS. ( ANC 5B), and they are fairly easy to machine ( I havve machined several) . The supplier told me that this was Inconel 713 C, and actually is not easy to machine.
Regards.
FĂ©lix
Regards.
FĂ©lix