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Husky 390xp that was left out in the elements enough to get moisture into the crankcase
Once disassembled I found the rot as well as what seemed like carbon crystals...not good. The bearing actually weren't bad but will still be replaced. Initially I hit the areas with a fine Dremel wire wheel, cone type. This, to get the major crud and be able to better see what's there.
Today I carefully media blasted the rot areas, staying away from bearing and seal seats.
It seems to have cleaned up well.
So, leave it alone? Let the mix oil keep further corrosion away? Thoroughly clean with acetone and then JB-weld and sand it all smooth? Replace the case? The saw will get minimal use.
Bearing seats are good; seal seats will be ok but I'll definitely use some sealer.
![1000005096.jpg 1000005096.jpg](https://opeforum.com/data/attachments/428/428991-7ee1b4cf94a4b82081e3eaadae3573d5.jpg?hash=0nQOzvAqm2)
![1000005097.jpg 1000005097.jpg](https://opeforum.com/data/attachments/428/428992-62faed77f98b19a4019db28895cfd84d.jpg?hash=8gzywItRf0)
Once disassembled I found the rot as well as what seemed like carbon crystals...not good. The bearing actually weren't bad but will still be replaced. Initially I hit the areas with a fine Dremel wire wheel, cone type. This, to get the major crud and be able to better see what's there.
Today I carefully media blasted the rot areas, staying away from bearing and seal seats.
It seems to have cleaned up well.
So, leave it alone? Let the mix oil keep further corrosion away? Thoroughly clean with acetone and then JB-weld and sand it all smooth? Replace the case? The saw will get minimal use.
Bearing seats are good; seal seats will be ok but I'll definitely use some sealer.
![1000005096.jpg 1000005096.jpg](https://opeforum.com/data/attachments/428/428991-7ee1b4cf94a4b82081e3eaadae3573d5.jpg?hash=0nQOzvAqm2)
![1000005097.jpg 1000005097.jpg](https://opeforum.com/data/attachments/428/428992-62faed77f98b19a4019db28895cfd84d.jpg?hash=8gzywItRf0)