This is more of a PSA for younger people who havent seen anything like this before.
I was replacing leaky gaskets in my 1939 Allis Chalmers B when I saw the previous owner who rebuilt it did a bad thing to the crankshaft mains' safety pins. Luckily everything was still tight so no harm done but I just wanted to share to opportunity to share how NOT to do safety wire. And how to do it OK and then how to do it premium aircraft grade.
The first 2 pics are how I found the crankshaft bolts wired in, just looped in a circle. This is how NOT to do it. If one bolt does come loose it will pull on the other one to loosen with it.
The next pic is how the factory service manual has them, not aircraft grade but X- crossed so if one bolt loosens the other will tighten. The crossed pic is my version, I may re-do this to the aircraft grade still, I dont like how it could flop over the bolt head.
The last pic is aircraft grade taken from the google...
Edit, the pics arent in order but you get the idea
I was replacing leaky gaskets in my 1939 Allis Chalmers B when I saw the previous owner who rebuilt it did a bad thing to the crankshaft mains' safety pins. Luckily everything was still tight so no harm done but I just wanted to share to opportunity to share how NOT to do safety wire. And how to do it OK and then how to do it premium aircraft grade.
The first 2 pics are how I found the crankshaft bolts wired in, just looped in a circle. This is how NOT to do it. If one bolt does come loose it will pull on the other one to loosen with it.
The next pic is how the factory service manual has them, not aircraft grade but X- crossed so if one bolt loosens the other will tighten. The crossed pic is my version, I may re-do this to the aircraft grade still, I dont like how it could flop over the bolt head.
The last pic is aircraft grade taken from the google...
Edit, the pics arent in order but you get the idea
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