1. Join the Community!

    DSMtuners is a massive archive of DSM information - but more importantly, it's a COMMUNITY! Join in and participate with other DSMers, and invite all of your DSM friends to make this place their home. Chat with others, create a build thread, post questions and answers. Get involved! Logging in will also remove many of the advertisements, along with this notice. ;)

New Engine, post-first startup questions

Posted by E-CLIPS97, Jul 26, 2016

Please Support STM Tuned
Please Support Southbay Fuel Injectors
  1. E-CLIPS97

    E-CLIPS97 Proven Member

    279
    0
    Joined Jan 8, 2003
    Eagle mountain, Utah
    Hey All!

    Finally got the Eclipse started after a full engine rebuilt. Has Wiseco 10.5 compression pistons. So, when I first got it fired up, I had a really rough idle. I tried to just keep it running to see if it would smooth out, and it didn't. I noticed that after running for a bit, the cat converter was RED HOT. I knew I had to be dumping fuel, so I shut it off. I found that there was an issue with the harness to the ignition coil and I wasn't getting spark, or getting intermittent spark to 2 of the cylinders.

    I fixed the issue, and a few other minor bugs, and got it fired back up and running. It idles pretty good, but I noticed a couple things. First, when I changed the oil after finally getting it to idle correctly, and letting it run for a bit to seat the rings, the oil had a slight gas smell. I can only bet that because I was flooding 2 cylinders with no/intermittent spark that the rings were letting the gas right by. I am wondering if my rings are already going to be toast by trying to seat with a gas washed cylinder? I don't even have it off the jack stands yet...

    Secondly, I noticed that the ground cable from the battery to the strut tower gets EXTREMELY hot. Like you cant touch it, its so hot. I've triple checked all the grounds, and everything looks good, so I am wondering if anyone has any insight as to what the issues might be.
     

    229  0

    1996 Mitsubishi Eclipse N/T
    manual · 2G DSM
    Loading...
  2. E-CLIPS97

    E-CLIPS97 Proven Member

    279
    0
    Joined Jan 8, 2003
    Eagle mountain, Utah
    So, got in the car today to take it for a drive. Dead. No lights, no nothing. Has a brand new Optima Red top and a brand new alternator. Jumped the car and it fires right up, but wont stay started. So I jump it again, leave it hooked to the running car for like 10min. I was able to drive it around the block before it died again. Is that all related to why the battery cable is getting super hot? I imagine the alternator isn't working...anyone want to chime in?
     

    229  0

    1996 Mitsubishi Eclipse N/T
    manual · 2G DSM
    Loading...
  3. Archer Fabrications

    Archer Fabrications Supporting Vendor

    6,195
    886
    Joined May 9, 2011
    Scottsdale, Arizona
    Sounds like something is backwords with the alternator or battery pix of engine bay?
     

    352  7

    2006 Evo 9 MR
    awd · manual · Lancer Evolution
    Loading...
  4. E-CLIPS97

    E-CLIPS97 Proven Member

    279
    0
    Joined Jan 8, 2003
    Eagle mountain, Utah
    This is the only one I have on me right now. I can get a close up of something specific if you need it(which I imagine you might haha). Thanks for the reply!
     

    Attached Files:

    229  0

    1996 Mitsubishi Eclipse N/T
    manual · 2G DSM
    Loading...
  5. E-CLIPS97

    E-CLIPS97 Proven Member

    279
    0
    Joined Jan 8, 2003
    Eagle mountain, Utah
    Okay, here is the battery area. The battery is out to be recharged. So, in the first pic, positive cable on the left. Negative on the right. Negative cable one runs from battery to post on strut tower. Negative cable 2 runs from the battery terminal to the upper starter bolt as a ground(pic 2). Is that incorrect?
     

    Attached Files:

    229  0

    1996 Mitsubishi Eclipse N/T
    manual · 2G DSM
    Loading...
  6. Archer Fabrications

    Archer Fabrications Supporting Vendor

    6,195
    886
    Joined May 9, 2011
    Scottsdale, Arizona
    Your negative battery cable should go to the chassis, not to a starter bolt, probably why it gets hot. The starter ground should go to the starter bolt, and the pos for it should go to the battery pos
     

    352  7

    2006 Evo 9 MR
    awd · manual · Lancer Evolution
    Loading...

Share This Page

Support Vendors who Support the DSM Community
Archer Fabrication ECM Tuning ExtremePSI Feal Suspension Fuel Injector Clinic Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications OHM Racing RockAuto SouthBay Fuel Injectors STM Tuned VR Speed Factory WheelWell.com White Shed Speed