John2189 561 #1 Posted May 14, 2025 (edited) The stator under the fly wheel for my kohler engine is caked full with oily dirt and grass do to a leaking crank seal. Is it ok to submerge it in the parts washer of kerosene to clean it ? Edited May 14, 2025 by John2189 1 Share this post Link to post Share on other sites
Handy Don 15,756 #2 Posted May 14, 2025 (edited) 10 minutes ago, John2189 said: The stator under the fly wheel for my kohler engine is caked full with oily dirt and grass do to a leaking crank seal. Is it ok to submerge it in the parts washer of kerosene to clean it ? NO, NO, NO, and NO. The windings are insulated with a varnish coating which would very likely be compromised, ruining the stator. There are many electronics-safe cleaner sprays that you can use available at auto parts stores and online. Most are best used in extremely well-ventilated places, by the way. Edited May 14, 2025 by Handy Don 3 Share this post Link to post Share on other sites
John2189 561 #3 Posted May 14, 2025 22 minutes ago, Handy Don said: NO, NO, NO, and NO. The windings are insulated with a varnish coating which would very likely be compromised, ruining the stator. There are many electronics-safe cleaner sprays that you can use available at auto parts stores and online. Most are best used in extremely well-ventilated places, by the way. Ah ok didn’t think about the insulation. Good thing I asked. Share this post Link to post Share on other sites
ri702bill 11,147 #4 Posted May 14, 2025 Lightly brush off what accumulation you can first - an old tooth brush works fine for this. A thought - check for continuity between the end of the winding and ground before & after cleaning. No need putting a compromised stator back on..... 3 Share this post Link to post Share on other sites
John2189 561 #5 Posted May 15, 2025 23 hours ago, ri702bill said: Lightly brush off what accumulation you can first - an old tooth brush works fine for this. A thought - check for continuity between the end of the winding and ground before & after cleaning. No need putting a compromised stator back on..... Well, it was charging when I took it apart, but who knows. I will check it Share this post Link to post Share on other sites
Bill D 2,587 #6 Posted May 17, 2025 There is a product from CRC called electric motor cleaner. It's the correct product for this situation. Stator windings and motor windings are basically the same. Both are insulated with a varnish coating 1 Share this post Link to post Share on other sites
