RVbySDI
Well Known Member
Hey guys, I have read the thread concerning vendors unavailability during Oshkosh and I am having the same problems. I am posting here in hopes someone will have some answers to my problems.
I picked a bad time to have my initial flight and start Phase I. Here I am trying to troubleshoot some instrument problems while everyone is at Osh. I wish now I had gone ahead and made the trip. I thought I would be better served to spend the week flying my new 9A. However, here I am with problems and I cannot contact anyone because they are at Osh. I am sure Carlos at GRT could help me out but they will not be back in their shop until a week after Osh.
Here is a synopsis of what I have and what is going on. I have a 9A with ECI IO-340 one slick mag, one Lightspeed Plasma III, ECI FI with cold air forward facing sump, Vetterman 4 pipe exhaust. I have dual GRT HX units with dual AHRS, EIS, Garmin SL-40, Garmin GTX327, Vertical Power VP-50 power control unit, TT Digiflight II VSGV, PM3000 Intercom.
I have a couple of problems with my instruments at present. The first deals with the transponder. I am not getting an altitude signal from the GRT to the 327. I have the GRT wired from DU2 Connector A Pin 1 to 327 Pin 19. However, there is no altitude signal on the 327. Is there some configurations on the GRT and/or 327 I need to set?
The second issue is with my oil pressure and oil temperature on the EIS. The oil pressure has always been showing very high on every flight. I have the EIS max oilP set to 95 but when I am at altitude around 2400 RPM it is showing 99 psi. If I decrease the RPM's it will come down to the low 90's, at idle it may be around 75-80 psi. The oil temperature started out working well a week ago showing around 180-200 deg. However, yesterday the temp never moved off of 59 deg on the display. Last night I went up for another short flight and at start up and before run-up the temp was showing 90-100 deg. However, after I started taxiing to the runway I looked at the temp again and it was on 59 deg again. It stayed that way all during the short 15 minute flight.
This is a brand new engine with only 1.5 hours on the test stand at the engine shop, maybe 1 hour run time max on the ground and about 1.5 hours on 4 test flights. The oil temperature issue only started showing up yesterday on two short 15 minute flights. The oil pressure issue has always shown high.
I appreciate any ideas.
I picked a bad time to have my initial flight and start Phase I. Here I am trying to troubleshoot some instrument problems while everyone is at Osh. I wish now I had gone ahead and made the trip. I thought I would be better served to spend the week flying my new 9A. However, here I am with problems and I cannot contact anyone because they are at Osh. I am sure Carlos at GRT could help me out but they will not be back in their shop until a week after Osh.
Here is a synopsis of what I have and what is going on. I have a 9A with ECI IO-340 one slick mag, one Lightspeed Plasma III, ECI FI with cold air forward facing sump, Vetterman 4 pipe exhaust. I have dual GRT HX units with dual AHRS, EIS, Garmin SL-40, Garmin GTX327, Vertical Power VP-50 power control unit, TT Digiflight II VSGV, PM3000 Intercom.
I have a couple of problems with my instruments at present. The first deals with the transponder. I am not getting an altitude signal from the GRT to the 327. I have the GRT wired from DU2 Connector A Pin 1 to 327 Pin 19. However, there is no altitude signal on the 327. Is there some configurations on the GRT and/or 327 I need to set?
The second issue is with my oil pressure and oil temperature on the EIS. The oil pressure has always been showing very high on every flight. I have the EIS max oilP set to 95 but when I am at altitude around 2400 RPM it is showing 99 psi. If I decrease the RPM's it will come down to the low 90's, at idle it may be around 75-80 psi. The oil temperature started out working well a week ago showing around 180-200 deg. However, yesterday the temp never moved off of 59 deg on the display. Last night I went up for another short flight and at start up and before run-up the temp was showing 90-100 deg. However, after I started taxiing to the runway I looked at the temp again and it was on 59 deg again. It stayed that way all during the short 15 minute flight.
This is a brand new engine with only 1.5 hours on the test stand at the engine shop, maybe 1 hour run time max on the ground and about 1.5 hours on 4 test flights. The oil temperature issue only started showing up yesterday on two short 15 minute flights. The oil pressure issue has always shown high.
I appreciate any ideas.
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