S2000 Under The Hood S2000 Technical and Mechanical discussions.

New engine, no break-in oil

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Old 02-24-2006, 12:52 PM
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Default New engine, no break-in oil

So my thrust bearing went out on my 04 S (which makes a terrible noise and vibration, BTW) necessitating the replacement of my short block. So after about 12K miles, I basically have a new engine.

The dealer filled the car with Castrol Synth Blend, which has me a little concerned that they basically used a synth, albeit a blend, instead of the regular break-in oil they use at the factory.

I have a can of Mr Moly break in fluid on order, but I've been told not to use it with synth. Any opinions on whether or not I should use it with the blend from the dealer, or should I drain the engine and use dino with the Mr Moly? Or something altogether different?
Old 02-24-2006, 02:19 PM
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Press them to order the Honda additive from Japan or Europe. I used to have the part number, but lost it.
Old 02-24-2006, 02:24 PM
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What were the early signs of the thrust bearing going? I have a whine from the engine once it warms up and am trying to locate the source.
Old 02-24-2006, 03:18 PM
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Originally Posted by VoIPA,Feb 24 2006, 04:52 PM
So my thrust bearing went out on my 04 S (which makes a terrible noise and vibration, BTW) necessitating the replacement of my short block. So after about 12K miles, I basically have a new engine.

The dealer filled the car with Castrol Synth Blend, which has me a little concerned that they basically used a synth, albeit a blend, instead of the regular break-in oil they use at the factory.

I have a can of Mr Moly break in fluid on order, but I've been told not to use it with synth. Any opinions on whether or not I should use it with the blend from the dealer, or should I drain the engine and use dino with the Mr Moly? Or something altogether different?
Wonder what caused that ? I would think thats pretty unusual.
Old 02-24-2006, 04:38 PM
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Originally Posted by AusS2000,Feb 24 2006, 05:24 PM
What were the early signs of the thrust bearing going? I have a whine from the engine once it warms up and am trying to locate the source.
Sorry, but it all happened fast. Everything was fine, then suddenly I get in to go to work one morning last week and thought, "holy crap what is that noise UTH?" According to the tech who worked the car, my crankshaft was moving over 1/8" back and forth. Imagine what that sounded like.
Old 02-24-2006, 04:42 PM
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Originally Posted by FILTHY BEAST,Feb 24 2006, 06:18 PM
Wonder what caused that ? I would think thats pretty unusual.
I suspect it is pretty unusual. Only 12000 miles, and then BAM! (think Emeril), need new engine. At least Honda covered it under warranty, and I wasn't the original owner.
Old 02-24-2006, 04:45 PM
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VoIPA - Are you in Alabama or Texas?
Old 02-24-2006, 04:51 PM
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Originally Posted by Harpoon,Feb 24 2006, 07:45 PM
VoIPA - Are you in Alabama or Texas?
Good question!

I'm in Huntsville, AL. No major prisons here. Just NASA and some Army brats.
Old 02-24-2006, 05:01 PM
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I was driving back from Houston in the 80's and had a 4 hour delay at 2am due to a prison breakout. I tried to sleep at a rest-stop, but the cops came by every 15 minutes and shined a light in the car!!!
Old 02-27-2006, 04:41 PM
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Any suggestions?


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