I have done about 15 hours on my IO-540 and believe it to be broken in. I have just done an oil change.
I split the old filter and inspected the paper - nada, nothing, zilch..... I was expecting at least some fine metal particles. Do I need to look harder (bright light, magnifying glass)? Is all well, or have I possibly screwed up the break in?
I split the old filter and inspected the paper - nada, nothing, zilch..... I was expecting at least some fine metal particles. Do I need to look harder (bright light, magnifying glass)? Is all well, or have I possibly screwed up the break in?