[FetchMeAPepsi]

I got my Archoil friction modifier in today. I measured out 7 oz in this handy measuring cup I had lying around a cabinet in the kitchen, mostly unused for the past 15 minutes or so.



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It looks like watery oil. Nice.



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Then it went down the hatch.



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And it still knocked. So I looked online at why engines knock and I learned something. There's a piston inside the motor. Most people know that. Ok, so that piston goes up and down when the spark plug fires.

Imagine how a guy cuts firewood. You swing the axe over your head and whoosh! Bring it down on a log. That's how a piston works if the axe head were the piston. Kinda. So knocking is like the shoulder of the lumberjack making noise. Say he's been swinging an axe for 30 years. He's kinda long in the tooth for axe work and his shoulder is kinda worn out.

When he brings the axe up his shoulder pops as his arm moves downward in the socket from the weight of the axe. That's a knock. When he swings downward it pulls on his arm and it knocks again because the shoulder goes forward in the loose socket.

Here's a drawing of what goes on inside there for the smart fellas.



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Where that arrow is on the connecting rod is where the socket gets worn, right where it swings around the crankshaft. At least that's how I understood it. You can youtube for an hour and see all kinds of reasons for engines knocking (maybe they just need to drop off a package?

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) but that's what I got for my reason.

So that part of the motor is right there when you take off the oil pan. If that's all there is to it, I'm wondering now why everyone says "That motor's trash brutha!. You hear her knocking, that's the Reaper at the door!"

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I think it shouldn't be too hard to change out those little bearings considering everything else I've done so far, right? It will run up my budget a bit more and that's unplanned, but what good is a truck if she don't run?

I'm going to study up on that a little more and see, but I think that's what I'm gonna do right now.