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General Minitrail Talk
Projects/Builds
71K0 just brought out of a LOOONNGG storage.
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<blockquote data-quote="69ST" data-source="post: 175416" data-attributes="member: 5"><p>The inside of these engines are like a combination blender/shredder and nuclear steroids. Between the gears, crankshaft, clutch, oil pump, and cam drive assembly, anything floating loose is going to be pureed & circulated throughout. </p><p></p><p>Agreed, splitting the cases is sound practice. And, with this kind of minimal mileage, it should be easy enough to clean the outside of the motor...well enough to prevent grit from getting into the cylinder...allowing you to leave the piston inside the bore. Be prepared, extracting the wrist pin is ticklish; there's <em>just</em> enough piston length to allow this. </p><p></p><p>I can tell you that lack of top end oil flow results in the head getting hot enough that after just a few minutes, it's like WTF?!! The overheating is dramatic enough that there's no need to grab the IR thermometer. Now, before panic sets in, needlessly, I'll clarify. This is what happens when the oil pump isn't working, IOW total lack of top end oil flow. Your situation is different. Hopefully, the flow restriction came on gradually, wasn't total and your friend shutdown the motor in time. </p><p></p><p>At this stage, may as well pull the head and see what you're dealing with, rather than prolonging the mental torture.</p></blockquote><p></p>
[QUOTE="69ST, post: 175416, member: 5"] The inside of these engines are like a combination blender/shredder and nuclear steroids. Between the gears, crankshaft, clutch, oil pump, and cam drive assembly, anything floating loose is going to be pureed & circulated throughout. Agreed, splitting the cases is sound practice. And, with this kind of minimal mileage, it should be easy enough to clean the outside of the motor...well enough to prevent grit from getting into the cylinder...allowing you to leave the piston inside the bore. Be prepared, extracting the wrist pin is ticklish; there's [I]just[/I] enough piston length to allow this. I can tell you that lack of top end oil flow results in the head getting hot enough that after just a few minutes, it's like WTF?!! The overheating is dramatic enough that there's no need to grab the IR thermometer. Now, before panic sets in, needlessly, I'll clarify. This is what happens when the oil pump isn't working, IOW total lack of top end oil flow. Your situation is different. Hopefully, the flow restriction came on gradually, wasn't total and your friend shutdown the motor in time. At this stage, may as well pull the head and see what you're dealing with, rather than prolonging the mental torture. [/QUOTE]
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General Minitrail Talk
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71K0 just brought out of a LOOONNGG storage.
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