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What to replace when installing new engine

Posted by Khalil Preston, Feb 25, 2018

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  1. Khalil Preston

    Khalil Preston Probationary Member

    5
    0
    Joined Sep 20, 2017
    Rocky Mount, Virginia
    I am getting a freshly built motor with zero miles to drop in my car. What should I replace?
     

    Street Build 1K  2

    1999 Mitsubishi Eclipse N/T
    manual · 2G DSM
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  2. 1cleangsx

    1cleangsx Proven Member

    122
    58
    Joined Sep 28, 2013
    Cheyenne, Wyoming
    The fluids LOL
     

    Street Build 1K  11

    1990 Mitsubishi Eclipse GSX
    13.2 @ 104.64 · 1G DSM
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  3. dsmcrzy

    dsmcrzy Proven Member

    1,125
    210
    Joined Dec 20, 2009
    Trenton, Ohio
    When I put in my first zero mile engine I replaced everything I could since the car already had 130k on it. For example: new alternator, starter things like that.
     

    Street Build 3K  12

    1996 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
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  4. shinzon

    shinzon Proven Member

    271
    48
    Joined Sep 11, 2006
    St. Petersburg, Florida
    Steering rack, front subframe bushings, anything rubber or otherwise perishable that is simple to get to with the engine out of the bay, but a nightmare with the engine in.
     

    888  2

    1996 Eagle Talon TSi AWD
    awd · automatic · 2G DSM

    458  1

    1997 Eagle Talon TSi AWD
    awd · automatic · 2G DSM
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  5. techboy

    techboy Proven Member

    272
    118
    Joined Feb 3, 2018
    Lehigh Valley, Pennsylvania
    It'd be a nice time to upgrade to Poly motor mounts. The rear one is very hard to get to once the motor is in. Check the condition of the CV boots on the axles too, b/c it would also be a convenient time to replace your axles if you needed to.
     

    Street Build 1K  6

    1999 Mitsubishi Eclipse GST
    13.876 @ 106.97 · 2G DSM
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  6. Khalil Preston

    Khalil Preston Probationary Member

    5
    0
    Joined Sep 20, 2017
    Rocky Mount, Virginia
    Thank you for all the replies. They are very helpful. I was also wondering about the break in for the motor. How do I properly break it in?
     

    Street Build 1K  2

    1999 Mitsubishi Eclipse N/T
    manual · 2G DSM
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  7. dsmcrzy

    dsmcrzy Proven Member

    1,125
    210
    Joined Dec 20, 2009
    Trenton, Ohio
    You are going to get tons of different answers for that question. It’s a highly debated topic if you begin to research it.

    Some say baby it for so many miles. Some say a variety of driving condition for so many miles.

    Personally I prefer the motoman break in method. Give it a good read.

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

    It would be worth talking to whoever built the engine (if it wasn’t you) to see what they recommend.
     

    Street Build 3K  12

    1996 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
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  8. VelocitàPaola

    VelocitàPaola DSM N/T Moderator

    4,885
    99
    Joined Jun 14, 2005
    Ft. Lauderdale, Florida
    Like dsmcrzy said, you'll get ten different answers for ten different people you ask about break-in procedures. I posted this link in another thread just now, which details Corbin's rebuild and break-in steps. FWIW, I followed his suggestions:

    http://www.2gnt.com/index.php?d=A_Proper_Rebuild

    Please ask separate questions in separate threads in the future.
     

    1K  21

    1995 Mitsubishi Eclipse N/T
    manual · 2G DSM
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