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Ticking/tapping at idle when warm - just started

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  #11  
Old 03-24-2011, 12:08 PM
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Mine seems louder in the wheel well areas too. I hear it the most sitting at a drive thru ATM or Dunkin Donuts drive thru where you are right up against a brick wall. Here is mine:
Boarding2011059.mp4 video by twovettes - Photobucket
 
  #12  
Old 03-24-2011, 12:26 PM
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Originally Posted by Snafu / Disco Fries
Mine seems louder in the wheel well areas too. I hear it the most sitting at a drive thru ATM or Dunkin Donuts drive thru where you are right up against a brick wall. Here is mine:
Boarding2011059.mp4 video by twovettes - Photobucket

Sounds like mine, How long has yours been making the noise?
 
  #13  
Old 03-24-2011, 12:35 PM
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Originally Posted by 94svt50
Sounds like mine, How long has yours been making the noise?
I've only had it a couple months and a couple thousand miles now, so no idea really. Besides the roughness/vibration over 3500RPM, it runs strong, doesn't burn oil and I get 14MPG driving it hard.
 
  #14  
Old 03-24-2011, 04:30 PM
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Originally Posted by Bundu
Been there done that, it's not the bearings. Big ends make a deep thump, not the more metallic tick you are hearing. I recon it's piston slap.
Why would piston slap start all at once? Also, I have non-magnetic metal flakes in my oil, could that be from piston slap? I guess I dont have a good grasp on what piston slap is.
 
  #15  
Old 03-24-2011, 07:59 PM
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Originally Posted by kae
Thanks for the audio. That's the sound. Mine isn't quite as loud and is tonally a bit higher. It disappears for awhile after I rev it and IS a bit louder on short trips.

What exactly is it? Hydraulic lifter that gets intermittently clogged? Would 10-40 be better than 15-40? It's been very cold this winter in so cal and I'm thinking maybe the 15-40 is too thick. It never did this in the summer.
Laugh Out Loud, 15w to thick for South CA in the winter time? Seriously? 15w-40 will pump in temps down to -15*F.
Car maintenance bibles: Oil Viscosity.
Just scroll down to the flow chart.
http://www.ideas4ag-ed.com/uploads/3..._viscosity.pdf
Keep in mind that our engines require a different type of motor oil than a "modern" engine with overhead cams and variable valve timing.
API Motor Oil Service Classifications
Stick with the 15w-40 year round and dont worry about the noise.
 
  #16  
Old 03-25-2011, 06:54 AM
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Originally Posted by 94svt50
Why would piston slap start all at once? Also, I have non-magnetic metal flakes in my oil, could that be from piston slap? I guess I dont have a good grasp on what piston slap is.
I said this before and I'll say it again: you bought your truck from a shady dealer. Your engine noise started after you changed your oil the first time, right? They had some snake oil in the engine to mask the engine noise so that you would be fooled into buying it, the engine noise was there before you bought it.
What is Piston Slap
 
  #17  
Old 03-25-2011, 07:02 AM
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Its a land rover most tick......Its enough to drive you nuts though!
 
  #18  
Old 03-25-2011, 07:30 AM
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I get the tick part and I can deal with it but, its the non-metalic metal flakes that bothers me. Any thoughts on these?
 
  #19  
Old 03-25-2011, 07:35 AM
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If you have metal pieces in your oil then it means your engine is falling apart, something is breaking into pieces. This could be old pieces from a previous failure and your engine was repaired but the oil pan was not cleaned out, or it could be a new failure and you are going to experience some or other event if you leave it.
 
  #20  
Old 03-25-2011, 07:43 AM
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Yeah metal in the oil is never good. We talking 1-2 small flakes or a lot of shavings?
 


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