Hello all...
I have another Briggs & Stratton 375 that I haven't spent much time on yet (because the base is cracked like you wouldn't believe so is falling to pieces). But I have started it, so it runs.
I noticed the coil is rusty and delaminating at one end. Its laminations are fanning/spreading out away from each other due to the rust.
Since it's still producing enough spark to run (and a new coil costs around $60-$90, it's not worth replacing. But is there a backyard fix to halt delamination of the coil? Like grinding the rust off with a wire brush in a drill - then painting with nail polish, or something similar?
Also, because it's fanning out - if I grind the rust off as best I can - I wouldn't then be able to compress the laminations with spring locking pliers, would I? (Because if it's the same as transformers in electronics, I think they coat the metal plates with some kind of insulating paint, then glue them together. Then they wind wire around that laminated core. So if I grind out the rust, then try and compress the plates, I'll be ruining the induction function of the coil, correct - because the laminations will now be touching?)
What about grinding that end of the coil on a bench grinder, or filing it down so the fanning is not as pronounced... I know I couldn't do this much, because that end would be shorter and therefore not close to the magneto anymore...
Suggestions/thoughts please?
