dickandlois Report post Posted March 23, 2020 Glad to hear the Generator started. Also, Thanks for the information about the Kubota engine. Now there is something this old guy can dig into to see where it goes. The math works out to just a little over 10,000 KW of electrical power, but the generator connected to it might be for the standard 7.5 system. Maybe Onan just ran short of engines and substituted a Kubota . A number of the Kubota powered generators are wired for 220 volts. You might have noticed some differences regarding the oil fill, dipstick and filter location? Could you post the Serial number of your unit? Why it works so well question. Sure sounds like the solenoid on the new starter works much better, through in force is much higher and there is much more current passing through the solenoid contacts, increasing the starter torque. You did find a loose ground connection and that could have degraded the winding in the solenoid. Found the engine specs. Plenty of HP, but it 's specification sheet mentions Power output at 3600 RPM. That means Onan set it up to run at 1800 RPM. To match the wiring commingle found in most coaches with a standard wiring setup for a single phase split winding. This lowers the HP, but gains fuel economy and would have an output of 7500 KW. If the original poster supplies the serial number information, there might be more information to post. Rich. Share this post Link to post Share on other sites
manholt Report post Posted March 23, 2020 Rich. He certainly has enough power in that Generator to run anything he wants! 😂 F375818, glad this came to a good ending for you! Stay safe and please come back to forum. Share this post Link to post Share on other sites
f433921 Report post Posted March 23, 2020 I have pulled apart several solenoids that look similar and was able to repair them by just removing studs and rotating them 180 degrees and removing the disk from the shaft and turning it over. Not as good as new contacts but got may more years of service out of it. Jim Share this post Link to post Share on other sites
f375818 Report post Posted March 24, 2020 Rich, Serial # of unit: A0608781125 Jim: take a look at the lower picture posted by DickandLois on 17 Mar on page 2. I removed the solenoid from the starter. It doesn't look like the guts will come out of it because of the moulded metal cylinder that extends to about 3/4 of the way to the back. Looks like the porcelain (back) part was inserted into the cylinder and then the cylinder was crimped down with some sort of special tool. I'm sure that i could get it apart by prying on the crimps but would probably bust the porcelain housing in the process. No big deal as it don't work like it is. Still have not found a replacement part #. Yoke on the pinion gear is good as is the plunger in the solenoid so the problem has to be with the innards. Share this post Link to post Share on other sites
dickandlois Report post Posted March 24, 2020 Thanks for the information. The original part number for the starter solenoid 191- 2216, but it looks like that has been superseded by 226-4257. You might be able to take the OEM unit to NAPA and see if they could match it up Kubota Starter number is 191-2229, but they do not brake down the solenoid number. The 2 look to be interchangeable. Your genset is a Onan, but built with a Kubota engine. Looking into what and how the 2 got related could prove interesting. They want one to replace the starter not rebuild them. Rich. Share this post Link to post Share on other sites
manholt Report post Posted March 24, 2020 Rich, in 1990 Cummins sold 27% of it's Stock to Kubota & in 2010 stopped making Onan engines! Interesting to note: Dodge Ram trucks, first ran Kubota engines and then changed over to Cummins...another note: Kubota is a revers injection engine and LOVES to eat glow plugs! Share this post Link to post Share on other sites
dickandlois Report post Posted March 24, 2020 25 minutes ago, manholt said: Rich, in 1990 Cummins sold 27% of it's Stock to Kubota & in 2010 stopped making Onan engines! Interesting to note: Dodge Ram trucks, first ran Kubota engines and then changed over to Cummins...another note: Kubota is a revers injection engine and LOVES to eat glow plugs! Kind of stuck with the Kubota engines for now. The change appears to have been made to meat the EPA requirements. Kubota is a revers injection engine and LOVES to eat glow plugs! Where did that little tid- bit come from? Rich. Share this post Link to post Share on other sites
jleamont Report post Posted March 24, 2020 Kubota is big in construction equipment, mini loaders, skid steers, mini excavators, mulch blowers, straw blowers and Hydro seeders. I cannot say I have ever had a bad experience with one of their products. Share this post Link to post Share on other sites
f433921 Report post Posted March 24, 2020 I has the same 3 cylinder Kubota in my tractor ran for 20 years never had a glow plug failure or starter failure. Jim Share this post Link to post Share on other sites
