Interesting engine break in thoughts

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  1. Interesting engine break in ......thoughts ???? 
    #1
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    Hi all.

    Just doing more research and found this. Have a look and see what you think.

    http://www.mototuneusa.com/break_in_secrets.htm

    Cheers

    D.
    Last edited by DonutMan1; 02-09-2010 at 13:58.
     
     

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    Interesting page that.

    Back in the 80's, I had a MK II Escort with a 1.6 Kent engine.

    This was modified to run a 11:5 compression ratio and some other mods.

    After an engine rebuild, we would stick it on my mates dyno, and run it at about 2500 RPM for about 2 - 3 minutes, then once we were sure the motor sounded fine, we would wind it up to 6000 RPM at full dyno load.

    This same mate ran his race car engines in the same way.

    I don't remember having any problems or critical failures with this approach.
    Now driving a 2000 523i auto (with 190k miles!) and a Skoda Octavia 1.8T estate.

    I've had several cars since my last updates here - so won't bother posting pics.
     
     

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    HI.

    Yep i had of heard of this a few years back, but i didn't know about changing the oil after 20 miles then 600. Really eye opening.
     
     

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    I remember motorcycle news doing a test where they got 2 brand new identical gsxr 750s and ran 1 in according the suzuki's guidelines and they ranted the other from day 1.

    The one that had been redlined from day 1 made more power, was faster and a nicer bike to ride apparently.
     
     

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    +1

    engines love to be nailed from day 1.

    some honda engines from the factory have gaps between the valves and the seats. you cannot lap these in due to the specific valve cut angles and they need to be thrashed to get the valves to hammer themselves into the seats for correct seating.

    running in is old technology, any new engine will be good to go from day one and many have been run by an electric motor on the production line to get rid of any high spots anyway.

    alternatively use hydraulic oil 32 as a running in oil (it's the exact same stuff) and drain out after 100 miles or so.
    I once owned the greatest BMW ever.
    Neiljewell's 850Ci back from the grave project
     
     

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