Hello Everyone

[RJC55]

The P218G is the 18 hp version that came in the Case 448 and some John Deere garden tractors. So definitely not original.

Here is a used one on eBay: Case Ingersol 446 Onan BF-MS/2891E OEM 12V Electric Starter C29733 | eBay

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And some more if it is the right one: onan p218 starter | eBay

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Thank you for everyone who provoked me to act in order to solve my starter issue. After looking at the model and serial number of my Case 446, I have purchased a starter from Ebay. I was looking for a starter to fit the P218G engine . It will be delivered Thursday 2/22.

Sincerely RJC

 

[RJC55]

Thanks for the feedback. I actually purchased a starter just like the bottom picture featured on your post. The only difference is the stud location which is at the cast base protruding perpendicular to the bottom. I also had to disassemble the spring and gear because the pictured mounting assembly does not match with the original . The starter works fine but now I have to do some trouble shooting with the wires to the solenoid because the starter just spins but doesn't lock out to engage the flywheel. This is my next task. I hope to reinstall the starter today and then contend with the solenoid wiring so that the Case 446 will be operational by then. My wiring seems all screwed up with a brown wire that seems to go nowhere since I took out the ammeter. If anyone can help with that , any input or ideas would be greatly appreciated. Thanks to all of those who have given me input so far- thanks. I believe with the support base of knowledgeable members in this forum, I can save money and get an education at the same time.

 

[RJC55]

According to specs- My engine is a 16 HP Onan engine

 

[Xfaxman]

Hi Everyone;
I did discover that my Case is a 446 and I have the model and serial number of the engine that mystarter was attached to. The Model number is P218G-1/10936G and the serial number is H963578524.
I hope this helps.
Thanks,
RJC

According to specs- My engine is a 16 HP Onan engine

Right, the Case 446 had a 16 HP opposed twin cylinder Onan engine. The Case 448 had a 18 HP opposed twin cylinder Onan engine. The model number that you posted is the 18 HP engine, a direct bolt in swap, that someone did previously.

 

[oldballs]

Tomorrow, if it would help, I'll go out to the shed and take a look at my Case 448......18 HP....Onan engine. ... will look for that brown wire or see what the OE manual says.

 

[RJC55]

Thank you for taking the time to assist me. My starter turns when I turn the key but the bendix mechanism does not lock out into the flywheel. The issue may be the wiring to the solenoid or a defective solenoid. I have 2 brown wires, a red wire with a inline fuse, a yellow wire, a blue wire which connect to the solenoid besides the thick red wires going to the starter and positive side of the battery and a black ground wire which connects from the solenoid to the negative terminal of the battery. I'm not sure if this solenoid has to be grounded but I have it bolted to metal. My engine is a twin cylinder Onan engine and may be a direct bolt sway as Xfaxman indicated. My issue with wiring began when I discovered a mouse nest in the battery compartment and some of the insulation was chewed off of the wires . This time, when I get the wires right from the ignition switch to the solenoid, battery, starter, etc. I will draw myself a diagram and save it for future reference. I am actually located in the woods in Cohocton with a trout stream in my back yard .

 

[oldballs]

Here's some pic that should help. I hope they are readable.

 

[Xfaxman]

Did a rotate and crop, open it in a new tab to zoom it:

 

[Xfaxman]

Found this with an image search:

 

[Xfaxman]

Thank you for taking the time to assist me. My starter turns when I turn the key but the bendix mechanism does not lock out into the flywheel.
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The Bendix moving out is strictly mechanical. The starter has to spin fast enough and the Bendix has to be clean.