Designed by Steve Andres
NOTE: Muncie – Neptune models having a “U” in their model designation had under water exhausts . Example: OB2AU
| Model Name: 1935 OB1 Neptune |
| Original carburetor |
Tillotson MS-73A |
| Magneto |
Eisemann Model 71H |
| Cylinders |
1 |
| B x S |
2 1/16” x 1 1/2“ |
| HP |
2 |
| Point gap |
0.020 |
| Sheer pin |
5/32” x 1″ |
| Oil |
2/3 pt. SAE-30 per Gal. |
| Tank |
|
| Exhaust |
|
| Lower unit |
|
| Rope plate |
Neptune |
| Model Name: 1935 OB16 |
| Original carburetor |
Tillotson MS-47A |
| Magneto |
Eisemann Model 82D |
| Cylinders |
2 |
| B x S |
|
| HP |
16 |
| Point gap |
0.020 |
| Sheer pin |
|
| Oil |
|
| Tank |
|
| Exhaust |
|
| Lower unit |
|
| Rope plate |
|
| Model Name: 1935 OB17 Neptune |
| Original carburetor |
Tillotson MS-45B; Superceeded by MS-47D |
| Magneto |
Eisemann Model 82D |
| Cylinders |
2 |
| B x S |
2 1/2” x 2″ |
| HP |
16 @ 4000 RPM |
| Point gap |
0.020 |
| Sheer pin |
7/32” x 1″ |
| Oil |
1 pt. SAE-40 per Gal |
| Tank |
Sheet aluminum |
| Exhaust |
Under water |
| Lower unit |
Non stream lined ball bearing |
| Rope plate |
8″ Neptune |
| Model Name: 1935 OB32 Neptune |
| Original carburetor |
Tillotson MS-45A |
| Magneto |
Eisemann Model 82D |
| Cylinders |
2 |
| B x S |
2 1/16” x 1 1/2“ |
| HP |
4 @ 3000 RPM |
| Point gap |
0.020 |
| Sheer pin |
5/32” x 3/4” or 3/16” x 3/4“ |
| Oil |
2/3 pt. SAE-30 per Gal. |
| Tank |
Cast aluminum smooth |
| Exhaust |
Above water |
| Lower unit |
Plain bearing |
| Rope plate |
8″ Neptune |
| Model Name: 1935 OB63 Neptune |
| Original carburetor |
Tillotson MS-45A |
| Magneto |
Eisemann Model 82D |
| Cylinders |
2 |
| B x S |
2 1/16” x 1 1/2“ |
| HP |
6 @ 3400 RPM |
| Point gap |
0.020 |
| Sheer pin |
5/32” x 1″ |
| Oil |
2/3 pt. SAE-30 per Gal. |
| Tank |
Sheet aluminum |
| Exhaust |
Under water |
| Lower unit |
Ball bearing |
| Rope plate |
6″ Neptune |
