I overhauled my IO-360 A1B6 myself, disassembled and sent everything out for inspection / repair / yellow tag. I hired an A&P to oversee the reassembly. So I'm in the same boat you are wrt the data plate and log entry. Here is what I have proposed for my case:
1. Modify the data plate to change the model number to something else which will not come up on Lycoming's TC data sheet, in my case I think I'll call it a FXIO-360 A1B6.
2 Log Entry (rather lengthy):
Remanufactured FXIO-360-A1B6, S/N RL-23920-51A
This engine was disassembled, cleaned, inspected, repaired as necessary, reassembled, and tested in accordance with Lycoming Direct Drive Overhaul Manual 60294-7-12 dated July 2008, as well as all applicable and current Lycoming Service Bulletins, Service Instructions, and Service Letters, with the following non-approved exceptions which render the engine ?EXPERIMENTAL?:
- Modifications to the case halves by Teledyne Mattituck Services, L.I. NY under invoice 2-42478, dated 8Jul2009, which:
- Adds two oil spray nozzles Lycoming P/N 73772 to each case half for enhanced camshaft lubrication, and
- Adds oil relief grooves between the crankcase parting surfaces above the camshaft to eliminate common oil leak problems and
- Adds a small oil feed port from the oil gallery to the thrust face where the crankshaft forward thrust load is applied to the case, and
- Adds tapped holes to the front face of the engine in the vicinity of the oil seal for mounting of an electronic ignition crankshaft position sensor
(Note: t
hese ?TMX improvements? are identical to those applied by Mattituck to their experimental engine series).
- Overhaul, calibrate, and airflow test of Bendix RSA-5 fuel servo and flow divider P/N RSA-5AD1 - 2524550-8 Serial Number 74843 rendering unit experimental, retagged under new part number EX-5, S/N 74843-EX by Airflow Performance, Inc. Spartanburg, SC, under invoice Y8-C9925. New injector lines P/N 1090187-21 (2) & -14 (2).
- Installation of Airflow Performance Purge Valve Assy P/N 2090124-CCW, which allows for pilot-directed fuel bypass at the flow divider back to the fuel tank.
- Installation of standby alternator on vacuum pad of accessory case, Mfgr B&C Specialty Products, P/N SD-20, S/N 0397464K.
- Installation of Experimental Aero propeller governor Model PCU-5000 P/N P-520-036/A, S/N 07301308.
- Installation of Plane Power 60 amp alternator, P/N AL-12?EI60/B, S/N 216-74836
- Installation of reusable aftermarket silicone rocker-box gaskets from Vans Aircraft.
- Installation of Electronic Ignition module, Mfgr:__________________, P/N:_____________________, S/N:______________________________.
These are the only exceptions, all other hardware, methods, techniques, and practices are in accordance with approved standards and technical data.
Engine was assembled using the following new components:
Quantity P/N Description
1 05K22720 CAMSHAFT KIT (includes lifters, hydraulic units)
2 SL13884AM10 BEARING
4 AEL16711M010 BEARING
8 SL13212AM10 BEARING
1 SL75441-1 GASKET SET MAJOR OVERHAUL
8 72198 PLUG, PISTON PIN
1 AEL19600 VALVE, TEMP CONTROL
1 AEL76121 SHAFT, TACHOMETER
1 AF15473 FUEL PUMP, NEW
8 AEL75060 BOLT, CONN ROD
8 AEL12186 NUT, CONN ROD
1 AEL61544 PLUNGER, FUEL PUMP
1 AEL18639 LOCKPLATE, CRANKSHAFT GEAR
1 SL71596 THRUST WASHER
1 CH48110-1 OIL FILTER
4 REM38E SPARK PLUGS
1 M2989 HARNESS, IGNITION (L)
1 SL72566 RING GEAR
1 75009 BRACKET, FUEL MANIFOLD
1 SL75072 GEAR ASSY, LEFT MAG/FUEL PUMP CAM
1 75444 SNIFFLE VALVE ADAPTER ASSY
3 15F19957-58 PUSH ROD ASSY
1 73027 TUBE ASSY, CYL OIL DRAINBACK
1 AEL62417 PLUG (oil cooler on acc case)
1 10-06754 COVER, TACH SHAFT
Engine was assembled using the following refurbished (yellow tagged) components:
4 FRCN13.0CA PISTON/CYLINDER ASSY
(ECI, Cerminil, P/N ECL13.0C/N, S/Ns 52438-1, 52438-9, 53287-6, 53287-10), Includes piston P/N AEL10207 STD REV 1963-1)
1 4372 MAGNETO, SLICK (S/N 91060033. 500
hour inspection 9Jun2008 by Select Aircraft
Services, Lancaster, TX under W/O 005081-00).
Complied with A.D. 2009-02-03 (Fuel Injection Servos) per S.B. PRS-107 Rev 4
Complied with A.D. 2008-14-07 (Externally mounted Fuel Injector Lines) per S.B. 342E.
Complied with A.D. 2004-10-14 (Crankshaft Gear) per S.B. 475C. Final bolt torque: 204 in-Lb, lockplate bent in place against bolt head
Complied with A.D. 1996-09-10 (Oil Pump) per S.B. 524
Complied with A.D. 1990-04-06 (Governor Line) per S.B 488A
I certify that this engine has been overhauled in accordance with Lycoming Direct Drive Overhaul Manual 60294-7-12 dated July 2008 to new limits with the exceptions noted above.
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Date
I certify that this engine has been tested per Lycoming Service Instruction 1427, and is approved for return to service.
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Date
This engine FXIO-360-A1B6 S/N RL-23920-51A installed in experimental RV-7A aircraft registration N7XXX with new hoses and engine mounts (Lord P/N J9613-40). Installed Stewart Warner oil cooler P/N 8432K S/N 380 after overhaul by Pacific Oil Cooler (Laverne, CA) under WO 65410 4Apr2008.
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Date