Another good day today. Video here.
First off fixing things...
- Brake fluid leak at the park brake. Tightened, and added additional fluid. Tested brakes, all good.
- Fuel leak at the banjo fittings on the collector to the pre-filters (before fuel pump). The leak had soaked the fire sleeve on the hose. Replaced the fire sleeve, rebanded the fire sleeve, and reinstalled.
- Checked the EGT/CHT connector on the EMS. Tight. Checked the EFIS, and all 6 EGT's and CHT's appeared to be reading OK. More on this later...
Purged the system of air by running the pump for a bit. I didn't get it all out, as it was a bit cranky to start. Ran fine.
Once warm, went up to 1800 RPM to do a 'mag' check... just check each ignition system. Right ignition system running rough and backfiring. Left it on the left side (ignition 1).
Same issue as before. 4 EGT's and 2 CHT's not working.
Went up to 2000 RPM on a single ignition. Ran smooth. 9.6 GPH, 40.3" manifold pressure. CHT's in mid to low 200's, EGT's mid 1300's.
After letting the turbo cool, we put the cowling on. I want to check for any interference issues with it running... anything to fix now before paint. Cowl went on super easy.
2nd run was cowled. After warm up, went to 2000 RPM, and then briefly up to 2200 RPM. Arms started waving to shut down... the wing nut clecos were departing the windshield.
2200 RPM
- 40.3" manifold pressure
- Fuel flow 12 GPH
- Manifold inlet temperature - peaked at 29.8 C
- EGT's - mid 1400's
- CHT's - low 200's
Checked both COM's. No static at all on TX or RX.
Did a quick taxi, because I could :-)
Post run diagnostics.
- Ignition issue was 2 plugs swapped (4 and 6).
- CHT / EGT issue tracked down to polarity. I remember when installing them and thinking about does polarity matter? At the time I thought not... now I know. Fixed and tested with a heat gun.
- No leaks
- No rubbing
- No burning
- Turbo exhaust pipe has a shake. Needs an additional mount.
Other than that, a success.
No comments:
Post a Comment