Hey there Don.Sounds like the same kind of life my engine had.Very little use.
I went to the barn to check my serial number.Here it is :
6665ST12703
I'm planning to buy a 4 pole,1800 rpm st gen head to put on it.Should be a good combination.
Are there any good second hand gen heads around? Would prefer a minimum 5 KW to a maximum of 10 KW.
Would prefer to go a little oversize if I happen to land a larger engine... Thanks, Mark
Sounds like it's a serial no. 6665, model ST1, 1977 mfg. and a 03 Build. The 03 Build is listed in my Work Shop manual as follows:
Close coupling model with ring gear on flywheel. Clockwise rotation. close coupling fan shround with starter motor blanking plate. 356mm (14") x 67mm (2 5/8") flywheel with ring gear. Fuel pump set 'no overload'. Governor set to 2600 rev/min.
Governor range: 1100-2000 (outside 8% governing limits)
2000-2600 (within 8% governing limits)
The clockwise rotation has to be considered when fitting an electric starter and if a generator has brushes. The cw rotation is opposite the US standard. There are other gov. springs and weights to bring it within limits for 1800 rpm. The combination code for 1800 rpm parts is 11GR. Probably other things to think about with the CW rotation.
An important thing to know if you intend to direct couple a generator is the bell housing flange is most likely an SAE standard. See here for chart. That will insure it matches the generator housing.
http://www.garbee.net/~cabell/sae.htmThere is also an SAE standard for the flywheel to match the drive disc on the generator rotor shaft. I don't have a reference here at home, I'll check at work. The 5 to 10 KW sounds about right and the 10 KW would give you better motor starting.
Regards,
Don