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Old 10-25-2005, 11:36 PM
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Breakin the motor

How many miles in a motor is considered broken-in? I have zero miles on the bottom-end. I am thinking of dynoing my new bottom-end motor next month.

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Old 10-26-2005, 06:47 AM
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I'm sure you will get some different answers, not to comment on break in time, I will add in that I have had several motors go bad due to bearing failure, as far as having any possible bearing problem, it seems that they need 500-700 miles before you hear any noise.

Ben
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Old 10-26-2005, 09:13 AM
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engine break in

Quote:
Originally Posted by juiced66malibu
How many miles in a motor is considered broken-in? I have zero miles on the bottom-end. I am thinking of dynoing my new bottom-end motor next month.
put it on the dyno when the temp. is up to normal run it up to 60% of hp for 10 min then go for broke . if the job was corectly dun no problem if not it will fly apart. also when finished cut open the filter, expect some small particals. check again in 500 miles.should be no particles if engine properly assembled
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Old 10-26-2005, 09:59 AM
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That's what I do, run for 20 min for the cam using Rotunda 10W40 tractor oil and then dump it. Add mobil 1 full syn. After that, hammer it.

Nothing about breakin will save anything if it's not assembled correctly.
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