Van's Air Force
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High EGT
- Thread starter Lapsley
- Start date
DennisRhodes
Well Known Member
Odds are Bad EGT probe.
The odds are bad EGT probe the Thermocouples used for that service usually go to 1600 F when they fail. The probe is where I would start with troubleshooting.
The odds are bad EGT probe the Thermocouples used for that service usually go to 1600 F when they fail. The probe is where I would start with troubleshooting.
BlueColorKat
Member
We got the high EGT alarm several times. Temps would go from normal to high alarm for several minutes then go back to normal. All other temps were good. Redid the elec. connection and problem went away.
Jim Olson
Blairsville, GA
RV-12. 120141, N126BJ
Jim Olson
Blairsville, GA
RV-12. 120141, N126BJ
Check Fittings
Roger, I had some intermittant very-high EGTs on the RV12/Dynon 180. Dynon Forum suggested checking the male-female fittings up there by the fuel manifold. I put a little dielectric grease on 'em and really jammed them together with two pair of needle-nose pliers. Normal readings since.
Jim
RV12 #264
Way too windy to fly this kite today.
Roger, I had some intermittant very-high EGTs on the RV12/Dynon 180. Dynon Forum suggested checking the male-female fittings up there by the fuel manifold. I put a little dielectric grease on 'em and really jammed them together with two pair of needle-nose pliers. Normal readings since.
Jim
RV12 #264
Way too windy to fly this kite today.
Ditto
I too have had the same problem twice now. In fact, things can be normal for several hours and then suddenly, readings become erratic. Given how erratic they are and the fact that all other engine indications were normal, it was clear that the EGT was not accurate. In fact, mine sometimes fluctated to a negative value! My spade connectors were crimped using a very high quality crimping tool but I still discovered that it appeared to be a issue at the crimp (after replacing a probe, only to find it was probably ok). I have found it is critical to very carefully strip the insulation on these wires, making sure that the non-metallic strands (the ones that look to be silk) are carefully cut away. Then mark the wire to make certain that the insertion in the spade is absolutely correct during crimping
Jeff
I too have had the same problem twice now. In fact, things can be normal for several hours and then suddenly, readings become erratic. Given how erratic they are and the fact that all other engine indications were normal, it was clear that the EGT was not accurate. In fact, mine sometimes fluctated to a negative value! My spade connectors were crimped using a very high quality crimping tool but I still discovered that it appeared to be a issue at the crimp (after replacing a probe, only to find it was probably ok). I have found it is critical to very carefully strip the insulation on these wires, making sure that the non-metallic strands (the ones that look to be silk) are carefully cut away. Then mark the wire to make certain that the insertion in the spade is absolutely correct during crimping
Jeff
