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Everything Dirt Bike
General Dirt Bike
Dirt Bike Oil Analysis
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<blockquote data-quote="SRAD97750" data-source="post: 116367" data-attributes="member: 425"><p>Oil analysis and compression tests are awesome predictions of engine life.</p><p>BUT, They are useless in a single sample.</p><p>You need to get a baseline, and then watch the change over time to predict a worn or wearing engine.</p><p>Worth it in the long run, as an engine will run great for a long time (little wear) then as it degrades, it degrades quickly(more and more shavings). Knowing where it started helps you compare how it's doing now.</p><p> </p><p>This is done EVERY flight on Turbofan engines. It's called EPR.</p><p>As the engine pressure ratio drops over time, they calculate how far it has worn.</p></blockquote><p></p>
[QUOTE="SRAD97750, post: 116367, member: 425"] Oil analysis and compression tests are awesome predictions of engine life. BUT, They are useless in a single sample. You need to get a baseline, and then watch the change over time to predict a worn or wearing engine. Worth it in the long run, as an engine will run great for a long time (little wear) then as it degrades, it degrades quickly(more and more shavings). Knowing where it started helps you compare how it's doing now. This is done EVERY flight on Turbofan engines. It's called EPR. As the engine pressure ratio drops over time, they calculate how far it has worn. [/QUOTE]
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