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Last Edit: August 05, 2014, 15:03:17 PM by Bucko
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Posted by pcarrell
 - August 05, 2014, 08:18:44 AM

How many miles do you have on that engine?  Could it be the cam chains hitting on the push rod tubes?  You usually see this on higher mileage motors.  http://www.gadgetjq.com/cc_tensioner.htm

Also, when was your last oil change?  I know mine gets noticeably louder as I near oil change time.

Posted by Bucko
 - August 04, 2014, 22:50:36 PM

I'm getting a lot of tapping noise these days.  The tapping sounds like a noisy lifter if you can imagine what that sounds like  - I think the 1500's are notorious for noisy lifters.  In any case, whatever is causing it, it's related to RPM - the fast the engine revs, the faster the tapping.

The old 1500 has always been a bit of a tapper, even when new.  I used to find though that as the engine warmed up, on a warm day, the ticking would mostly disappear.  Now I hear the tapping all the time, hot or cold!  It's so loud that on the highway, at 60 MPH, I can barely hear the motor because of the wind noise but the tapping comes through loud and clear.   

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