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Old 03-21-2012, 10:46 PM   #1
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Nice video I found on the ole u-tuber this fine evening. Candy starts around 30 secs.


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Old 03-21-2012, 10:48 PM   #2
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Old 03-21-2012, 10:49 PM   #3
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Can't watch on iPhone. Ken is sad
So is Jeff.
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Old 03-21-2012, 10:56 PM   #4
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Holy smokes, can you treat an engine with only 70 miles on it that way?

If so, I've been babying mine WAAAAY to much.
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Old 03-21-2012, 10:59 PM   #5
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Holy smokes, can you treat an engine with only 70 miles on it that way?

If so, 've been babying mine WAAAAY to much.
Can or should?
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Old 03-21-2012, 11:03 PM   #6
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million mile warantee!
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Old 03-21-2012, 11:06 PM   #7
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Holy smokes, can you treat an engine with only 70 miles on it that way?

If so, I've been babying mine WAAAAY to much.
No such thing bro. I just broke 1200 miles on mine today and haven't pushed it past 4,000 rpm. Maybe once it hits 2000 I'll push it a little higher.

Nice and slow for me. I want those seals to sit perfect
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Old 03-21-2012, 11:07 PM   #8
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Can or should?
Good point.

I've been itching to see what the new engine feels like at WOT, but not with 190 miles on it.
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Old 03-21-2012, 11:08 PM   #9
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No such thing bro. I just broke 1200 miles on mine today and haven't pushed it past 4,000 rpm. Maybe once it hits 2000 I'll push it a little higher.

Nice and slow for me. I want those seals to sit perfect
Same here. Haven't been over 4k rpm yet.
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Old 03-21-2012, 11:08 PM   #10
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No such thing bro. I just broke 1200 miles on mine today and haven't pushed it past 4,000 rpm. Maybe once it hits 2000 I'll push it a little higher.

Nice and slow for me. I want those seals to sit perfect
So what kind-o-damage-o we talking here when he gets stuck and floors its for about 10 seconds after trying and trying?
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Old 03-21-2012, 11:14 PM   #11
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Good point.

I've been itching to see what the new engine feels like at WOT, but not with 190 miles on it.
Maybe those power lines over the top of their off road area are slowly killing all of their brain cells lol..
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Old 03-21-2012, 11:25 PM   #12
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So what kind-o-damage-o we talking here when he gets stuck and floors its for about 10 seconds after trying and trying?
well sir, it could cause your piston rings to not seat properly therefore causing your engine to smoke because it is burning oil. Some rings can take up to several thousand miles to sit.

also improper break-in could cause the many bearings in your engine to not wear evenly and cause premature failure.

Some people say this "break-in period" is a myth but I disagree

I know you asked that out of sarcasm, but I do know a thing or two here
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Old 03-21-2012, 11:31 PM   #13
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well sir, it could cause your piston rings to not seat properly therefore causing your engine to smoke because it is burning oil. Some rings can take up to several thousand miles to sit.

also improper break-in could cause the many bearings in your engine to not wear evenly and cause premature failure.

Some people say this "break-in period" is a myth but I disagree

I know you asked that out of sarcasm, but I do know a thing or two here
Nope not a drop of sarcasm actually. I'm sure there was damage, trying to learn as to what.
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Old 03-21-2012, 11:38 PM   #14
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Nope not a drop of sarcasm actually. I'm sure there was damage, trying to learn as to what.
well my apologies for the negative assumption then. The popcorn guy made me think you were just trying to see if I knew what I was talking about. Plus there was some name calling I was in the middle of earlier that has me on defense

The new JK's "supposedly" don't have a break-in period, but after rebuilding a '70 chevelle 454 engine and seeing all that goes into it, plus all the technology in cars nowadays, I am babying the hell out of my JKUR to make sure that I don't have to get my piston rings replaced in 1 or 2 or 3000 miles because they are fried from my being an idiot early on and are leaking oil into the combustion chambers and I will forever have a smokey engine unless they're replaced

And that's just one issue with piston rings. MULTIPLE other things could go wrong. You just never know till it breaks
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Old 03-22-2012, 12:00 AM   #15
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well my apologies for the negative assumption then. The popcorn guy made me think you were just trying to see if I knew what I was talking about. Plus there was some name calling I was in the middle of earlier that has me on defense

The new JK's "supposedly" don't have a break-in period, but after rebuilding a '70 chevelle 454 engine and seeing all that goes into it, plus all the technology in cars nowadays, I am babying the hell out of my JKUR to make sure that I don't have to get my piston rings replaced in 1 or 2 or 3000 miles because they are fried from my being an idiot early on and are leaking oil into the combustion chambers and I will forever have a smokey engine unless they're replaced

And that's just one issue with piston rings. MULTIPLE other things could go wrong. You just never know till it breaks
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Old 03-22-2012, 12:12 AM   #16
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Some rings can take up to several thousand miles to sit.
There is another train of thought on this . . .

Break In Secrets--How To Break In New Motorcycle and Car Engines For More Power

I don't know if he's wrong or right, but I'll have a spanking new Jeep in a couple of weeks and though he makes a compelling argument, I don't know . . .
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Old 03-22-2012, 12:33 AM   #17
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The guy in the vid apparently has enough cash to not really worry too much about proper engine break-in. I do not have enough disposable income to go thrash on a $30k vehicle like that, and I need it to get to and from my low paying job. When you have a low paying job like mine and you have car trouble, you get fired. One of these days maybe I will be lucky enough to have a different perspective.

On the other hand it's still just an internal combustion gas engine, they get rebuilt every day.
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Old 03-22-2012, 12:42 AM   #18
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There is another train of thought on this . . .

Break In Secrets--How To Break In New Motorcycle and Car Engines For More Power

I don't know if he's wrong or right, but I'll have a spanking new Jeep in a couple of weeks and though he makes a compelling argument, I don't know . . .
This is pure speculation, but my last bike was an insanely rev happy GSX-R 750. I never for a second felt like the engine was built to do more than 30k-40k miles before a complete rebuild. From the second I turned it over on day one, it wanted to be at redline. (okay maybe after a cough or two)

I didn't read down your site far enough, but it doesn't seem like an apples to apples comparison.
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Old 03-22-2012, 08:28 AM   #19
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This is pure speculation, but my last bike was an insanely rev happy GSX-R 750. I never for a second felt like the engine was built to do more than 30k-40k miles before a complete rebuild. From the second I turned it over on day one, it wanted to be at redline. (okay maybe after a cough or two)

I didn't read down your site far enough, but it doesn't seem like an apples to apples comparison.
I have a '07 Honda CBR600RR and didn't break 5,000rpm for the first 3000 miles. It was easily the most anticipated and aggravating things I've ever been through because it was already fast at low rpm's and I'm a speed freak at heart and wanted to see what it could really do, but have had zero problem with the bike and am glad I did

One of my good friends is a tech at the shop where I bought my bike so I went in and we uncrated it and put it all together. He rebuilds his CBR1000RR engine every winter as he puts close to 20,000 miles on it every year. He also said he sees a lot of bikes come in that need the piston rings replaced because people put in the high 10% ethanol gases in and the ethanol burns up the piston rings. I have found a couple stations around my house that have low ethanol 5% or so and put that in the bike AND the Jeep just to be safe
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Old 03-22-2012, 01:46 PM   #20
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The manual for the 2012 doesn't say no break in period. It actually says the break in is 500 miles and after you hit 60mi you should occasionally do full throttle acceleration when you're already up at highway speeds.

It's a pretty radical departure from the break in procedure that most manufacturers suggest, but I figure it's in their best interest that your engine last as long as possible, so I'm going to trust the engineers that designed the thing.

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ENGINE BREAK-IN RECOMMENDATIONS
A long break-in period is not required for the engine and drivetrain (transmission and axle) in your vehicle.
Drive moderately during the first 500 miles (800 km). After the initial 60 miles (100 km), speeds up to 50 or 55 mph (80 or 90 km/h) are desirable.
While cruising, brief full-throttle acceleration within the limits of local traffic laws contributes to a good break-in. Wide-open throttle acceleration in low gear can be detri- mental and should be avoided. Trailer tow is not recom- mended during break in period.
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Old 03-22-2012, 02:47 PM   #21
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Break in really depends on the motor/manufacturer. For instance, every engine Porsche produces is run for 45 mins at redline prior to going into the vehicle. BMW also pre-runs all of their motors. They come factory fresh running 100% synthectic oil. Used to be the rule was no synthetic for the first 5k miles. Times have changed.
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Old 03-22-2012, 03:21 PM   #22
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Break in really depends on the motor/manufacturer. For instance, every engine Porsche produces is run for 45 mins at redline prior to going into the vehicle. BMW also pre-runs all of their motors. They come factory fresh running 100% synthectic oil. Used to be the rule was no synthetic for the first 5k miles. Times have changed.
My 3.6 Pentastar falls quite short of being compared to a Porsche or BMW.
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Old 03-22-2012, 03:23 PM   #23
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I don't buy the break in stuff, the fact that they actually said you should do full throttle is good.

I remember an old article where they tested a lot of engines and broke them in differently. The ones that were broken in on the dyno ended up lasting longer
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Old 03-22-2012, 03:40 PM   #24
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I broke mine in as per the manual, several WOT runs while cruising. At the end of the 500 mile period I hadn't used a drop of oil. I broke in my Harley like that linked article and it uses no oil to this day. There is a school of thought that if you don't get on it once and a while you will never seat the rings, and thus become an oil burner, at a certain point it is too late.

Modern engines are built with such tight tolerances these days they are broken in the first 500 miles, this isn't the 70's. No need to doubt what Chrysler says they're the ones holding the warranty.
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Old 03-22-2012, 03:49 PM   #25
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I went offroading to the powerlines a couple weeks ago. Got it nice and muddy. Was really impressed with what my jeep could do with 33's and a leveling kit.

My jeep has about 2500 miles on it. Lol.
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Old 03-22-2012, 04:00 PM   #26
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Modern materials and manufacturing techniques have largely eliminated the need for a break-in over 1,000 miles.

Most break-in periods are designed for the rest of the drivetrain (transmission, clutch, tires, brakes, suspension, etc.). They are also designed to ensure the driver doesn't place large stresses on the vehicle before infant mortality issues may show themselves. This is a safety concern.

Break-in rules are provided and written in verbiage that the common dunce can understand - hence the "protocol" of slow for X,XXX miles.

BTW - Bearings do not "break-in" - at all. They wear. That is all. If you need to "break-in" a bearing, they are not designed, manufactured, or installed correctly. Engine seat their rings very quickly and require load to do so. Your rings are largely bedded in the first couple miles.
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Old 03-22-2012, 06:07 PM   #27
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Modern materials and manufacturing techniques have largely eliminated the need for a break-in over 1,000 miles.

Most break-in periods are designed for the rest of the drivetrain (transmission, clutch, tires, brakes, suspension, etc.). They are also designed to ensure the driver doesn't place large stresses on the vehicle before infant mortality issues may show themselves. This is a safety concern.

Break-in rules are provided and written in verbiage that the common dunce can understand - hence the "protocol" of slow for X,XXX miles.

BTW - Bearings do not "break-in" - at all. They wear. That is all. If you need to "break-in" a bearing, they are not designed, manufactured, or installed correctly. Engine seat their rings very quickly and require load to do so. Your rings are largely bedded in the first couple miles.
Bingo!
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Old 03-22-2012, 07:03 PM   #28
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Keep in mind there is a difference between break-in babying and abuse. Just because your Jeep/car/truck whatever is broken in, doesn't mean it can take more abuse.

A good rule of thumb is to go easy until the whole drivetrain has been thoroughly heat soaked (~15 minutes driving unless very cold) regardless of its age/mileage.

I've heard of many people blow Corvette engines because they think its designed "like a race-car" (i.e. floor it after starting). I've had two people ask me to show what my porsche boxster can do (not that it is a fast car to being with) shortly after starting it. I said "no, it has to warm up". They followed this by "but its a Porsche they are designed to go fast"....
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Old 03-22-2012, 11:56 PM   #29
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Good stuff guys, seems like I should be driving a little more aggressively. Music to my ears.

Along these lines, I often see neighbors turning their cars on and letting them sit for five minutes before taking off. Is that necessary?
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Old 03-22-2012, 11:58 PM   #30
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Good stuff guys, seems like I should be driving a little more aggressively. Music to my ears.

Along these lines, I often see neighbors turning their cars on and letting them sit for five minutes before taking off. Is that necessary?
Idling is not good for any engine. Better to warm it up by slowly driving.

BTW - driving your engine harder is not better for it. You load up the rings just fine going up a normal hill at regular speed. Once the rings are set, there is not much else you can do to help and at that point, smooth operation is best. But, it is good for an engine to be wrung out regularly. It helps build heat to clean everything.

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