Question about 2008 Harley Davidson FLHX Street Glide

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07 street glide,I experenced the tappets rattling like hell a couple days ago while in traffic,but seemed fine a little later what should i expect is something getting ready to go out?

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Sounds like an oil pressure problem. If you had one tappet to start rattling, I'd suspect a roller on a tappet was going bad. But you said "tappets", plural. If all your tappets were rattling badly, you lost oil pressure for some reason. This is the only thing that I can think of that will do that.

Good Luck
Steve

Posted on Sep 17, 2010

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Posted on Jan 02, 2017

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As long as the tappets are not rattling, you don't have a problem with oil pressure. If your oil pressure drops too low, the tappets are hydraulic and they will rattle like hell. There will be no doubt in your mind as to the problem.

Now, back to your question as to why the oil pressure on your bike drops when accelerating under a load, I have no idea.

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