Service Letters| Name | Revision | Lang | Subject | Date |
|---|
| SL A-1 |
|
en |
Exhaust Valve Retainer Washer PN 7611 | 06/05/2036 |
| SL A-2 |
|
en |
Ball Bearing Crankshaft Thrust PN B-550 | 08/12/2036 |
| SL A-3 |
|
en |
Excessive Cylinder Wear | 10/15/2041 |
| SL A-4 |
|
en |
Valve Springs | 05/06/2037 |
| SL A-5 |
|
en |
Relocation of All Propellers in Hubs | 07/22/2037 |
| SL A-6 |
|
en |
Valve Spring PN 7741 | 09/07/2039 |
| SL A-7 |
|
en |
Service Memorandum to Owners of Airplanes Powered by Warner Super-Scarab 145 HP Engines | 11/02/2039 |
| SL A-8 |
|
en |
Valve Springs | 05/06/2037 |
| SL A-9 |
|
en |
Replacement of Link Rod Bolts | 06/18/2040 |
| SL A-10 |
revised |
en |
Replacement, During Next Overhaul, of Exhaust Valve Springs on Late Series 125 HP Scarab & 145HP Super Scarab Engines Equipped with Nos. 7739 & 7610 Exhaust Valves & Carburetor Idling Adjustments | 05/02/1942 |
| SL A-11 |
|
en |
Periodic Inspection of Crankshafts on Scarab 125 HP Engines | 09/14/1942 |
| SL A-12 |
|
en |
Valve - Carburetor Heat Control Assembly No. 8290 - Modification of Linkage | 01/01/1943 |
| SL A-13 |
|
en |
I. Pistons - Procedure of Inspection & Replacement II. Exhaust Valve - Procedure of Inspection & Replacement III. Cylinder Attaching Stud - Proper Inspection & Assembly Procedure IV. Link Rod - Proper Fit of Wrist Pin | 07/26/1943 |
| SL A-14 |
|
en |
Spark Plugs - Installation, Inspection, Maintenance & Overhaul | 11/24/1943 |
| SL A-15 |
|
en |
Cylinder Attaching Studs - Proper Maintenance, Inspection & Assembly Procedure | 08/01/1944 |
| SL A-16 |
|
en |
Carburetor Heat Control Valve Assembly No. 7720 & 7989 - Drilling of Drain Hole to Eliminate Fire Hazards | 12/21/1944 |
| SL A-17 |
|
en |
I. Replacement of S-506 Cylinder Hold-Down Stud & Nut N-511 with S-911 Stud & N-910 Nut II. Replacement of Gasket between Cylinder Barrel & Crankcase with "O" Type Ring | 01/02/1945 |
| SL A-18 |
|
en |
I. Recognition of Reinforced Taper Crankshafts II. Availability of New Heavier Stem Exhaust Valve | 04/22/1946 |
| SL M-9 |
|
en |
Installing New Part No. 7040, Guide-Can Follower, or Part No. 7460, Guide Follower, Threaded | 02/19/1957 |
| SL M-10 |
|
en |
Valve Springs | 05/07/2041 |
| SL M-11 |
|
en |
Replacement of Part No. 7012-B, Master Connecting Hod Final Assembly | 05/25/1957 |
| SL M-12 |
|
en |
Propeller Installation | 07/29/1957 |
| SL M-13 |
|
en |
Super Scarab Engines Piston Assembly | 10/27/1957 |
| SL M-14 |
|
en |
Preparation of Engines for Export | 12/12/2041 |
| SL M-15 |
|
en |
Piston Assembly | 08/24/1958 |
| SL M-16 |
|
en |
Defective Parts | 09/15/1958 |
| SL M-17 |
|
en |
Super Scarab Model 165 Installations | 07/25/1959 |
| SL M-18 |
|
en |
Connecting Rod - Final Assembly Master | 12/28/1959 |
| SL M-19 |
|
en |
Thrust Bearing Cover | 04/05/2040 |
| SL M-20 |
|
en |
Valve Springs | 05/15/2040 |
| SL M-21 |
|
en |
Exhaust Valve | 12/12/2041 |
