NOTE: Muncie – Neptune models having a “U” in their model designation had under water exhausts . Example: OB2AU
| Model Name: 1932 OB15A Muncie Master |
| Original carburetor |
Tillotson MS-47B; Superceeded by MS-47D |
| Magneto |
Eisemann Model 82D |
| Cylinders |
2 |
| B x S |
2 1/2” x 2″ |
| HP |
16 |
| 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 |
Sheet aluminum embossed |
| Exhaust |
Under water |
| Lower unit |
Stream lined ball bearing |
| Rope plate |
8″ Muncie or Motorgo |
| Model Name: 1932 OB16 |
| Original carburetor |
Tillotson MS-47A |
| Magneto |
Eisemann Model 82D |
| Cylinders |
2 |
| B x S |
|
| HP |
16 |
| Point gap |
0 |
| Sheer pin |
|
| Oil |
|
| Tank |
|
| Exhaust |
|
| Lower unit |
|
| Rope plate |
|
| Model Name: 1932 OB3 Motorgo |
| Original carburetor |
Tillotson MS-45A |
| Magneto |
Eisemann Model 82D |
| Cylinders |
2 |
| B x S |
2″ x 1 1/2“ |
| HP |
4 |
| 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 |
6″ sand cast Motorgo |
| Model Name: 1932 OB3A Junior Neptune |
| Original carburetor |
Tillotson MS-45A |
| Magneto |
Eisemann Model 82D |
| Cylinders |
2 |
| B x S |
2″ x 1 1/2“ |
| HP |
3 @ 2800 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 |
6″ sand cast Neptune |
| Model Name: 1932 OB3AU Junior Neptune |
| Original carburetor |
Tillotson MS-45A |
| Magneto |
Eisemann Model 82D |
| Cylinders |
2 |
| B x S |
2″ x 1 1/2“ |
| HP |
3 @ 2800 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 |
Under water |
| Lower unit |
Plain bearing |
| Rope plate |
6″ sand cast Neptune |
| Model Name: 1932 OB3B Muncie Neptune |
| Original carburetor |
Tillotson MS-45A |
| Magneto |
Eisemann Model 82D |
| Cylinders |
2 |
| B x S |
2″ x 1 1/2“ |
| HP |
4 |
| 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 |
6″ sand cast Muncie or Neptune |
| Model Name: 1932 OB3BU Muncie Neptune |
| Original carburetor |
Tillotson MS-45A |
| Magneto |
Eisemann Model 82D |
| Cylinders |
2 |
| B x S |
2″ x 1 1/2“ |
| HP |
4 |
| 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 |
Under water |
| Lower unit |
Plain bearing |
| Rope plate |
6″ sand cast Muncie or Neptune |
| Model Name: 1932 OB3U Motorgo |
| Original carburetor |
Tillotson MS-45A |
| Magneto |
Eisemann Model 82D |
| Cylinders |
2 |
| B x S |
2″ x 1 1/2“ |
| HP |
4 |
| 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 |
Under water |
| Lower unit |
Plain bearing |
| Rope plate |
6″ sand cast Motorgo |
| Model Name: 1932 OB4A Improved Twin |
| Original carburetor |
Tillotson MS-45A; Superceeded by MS-45D |
| Magneto |
Eisemann Model 82D |
| Cylinders |
2 |
| B x S |
2″ x 1 1/2“ |
| HP |
6 |
| 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 hammered or smooth |
| Exhaust |
Under water |
| Lower unit |
Plain bearing |
| Rope plate |
6″ Muncie |
| Model Name: 1932 OB5 |
| Original carburetor |
Tillotson MS-45A |
| Magneto |
Eisemann Model 82D |
| Cylinders |
2 |
| B x S |
|
| HP |
5 |
| Point gap |
0 |
| Sheer pin |
|
| Oil |
|
| Tank |
|
| Exhaust |
|
| Lower unit |
|
| Rope plate |
|