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Street Build Blue Bones

Year:
1990
Model/Trim:
Mitsubishi Eclipse GSX
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  1. Mech Addict

    Mech Addict Proven Member

    129
    52
    Joined Jun 9, 2019
    Jackson, Wyoming

    Street Build 474  6

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
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  2. Mech Addict

    Mech Addict Proven Member

    129
    52
    Joined Jun 9, 2019
    Jackson, Wyoming
    Suspected fuel delivery issues. Very hard cold start (almost impossible w/o starting fluid), and one episode of driveability issues. Also seeping fuel tank drain plug. Just drained tank and removed pump. Some rust inside. Plan to check pump and fuel gague sending unit w/ multimeter, and replace fuel filter. Also have replaced spark plugs (didn’t solve starting issue).

    Once I get the tank drain plug to stop seeping, I can get it in the garage on stands, and examine the p/s leak (completely empties in 1-2 days).
     

    Street Build 474  6

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
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  3. Talondvr

    Talondvr Proven Member

    172
    3
    Joined Sep 14, 2008
    Kenosha, Wisconsin
    Glad you found one and that you got it home safe. Hope all works out for you. Lots of good info here, just search or ask!
    I would love to find a Galant or maybe a 2g if I could find one for a descent price. I used to have a 90 but don't have many parts left. A throttle body, maybe a exhaust mani and some other small stuff.
    Is your FIAV hooked up, that might cause cold start issues.
     

    934  15

    1991 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  4. Mech Addict

    Mech Addict Proven Member

    129
    52
    Joined Jun 9, 2019
    Jackson, Wyoming
    Good suggestion, haven’t looked into that yet. Would that cause a lean condition on starting? I have both factory manuals and Haynes, so I’l read up on the FIAV operation and troubleshooting.

    Right now I have the fuel tank drained and pump assembly removed. Rust and debris are in there, so cleaning all that up, and flushing lines and new filter seem like first step in any case. Actually maybe going to look at a 90 gsx parts car tomorrow. Because hey, why try to fix up one when you can have two non-runner projects. Don’t suppose anyone else can relate.;()
     

    Street Build 474  6

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
    Loading...
    pat white likes this.
  5. Mech Addict

    Mech Addict Proven Member

    129
    52
    Joined Jun 9, 2019
    Jackson, Wyoming
    Ok, I think this is my first post of actual work going on with my gsx. The fuel pump is removed. The filter sock is a nice rusty brown. It’s had time to dry out, and lovely brown clouds issue forth when I flick it with my finger. The entire hanger assembly has light to moderate surface rust, and all the wires seem very brittle. Not surprised since the live in gas. I checked the fuel level sender per the factory service manual, and the resistance does not change smoothly as the float arm is cycled through its range. This may explain why the gage is not functioning. I am considering purchasing a whole now factory pump unit, which seems to include the pump, harness, sender, low level sensor, gasket, pressure piping. Pricey, around $500 is cheapest I’ve found on line. Anybody got a better idea??
    I also ordered the fuel tank sealant kit from Eastwood, to deal with the root cause: rusty tank interior. Anyone tried this? New tanks list for $750 min. Remember, I’m going stock when possible, no fuel cells or race pumps, and I want the dash gage and low alarm to work. Obviously a filter change is a given.
     

    Attached Files:

    Street Build 474  6

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
    Loading...
  6. Mech Addict

    Mech Addict Proven Member

    129
    52
    Joined Jun 9, 2019
    Jackson, Wyoming
    Well this might explain those driveability issues I experienced! Tank has rust and debris galore. I ordered a do-it-youself tank sealing kit from Eastwood, but have also noticed that the spendy new oem tank comes with the pump, hanger, level sender, all installed as a unit, at least according to the parts catalog. I was already pretty much decided to get the pump unit for about $475 (cheapest I could find), but for $750 I can get the whole new tank with everything in it. Kinda tempting, I guess, in a slippery slope sort of way.
     

    Attached Files:

    Street Build 474  6

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
    Loading...
  7. Mech Addict

    Mech Addict Proven Member

    129
    52
    Joined Jun 9, 2019
    Jackson, Wyoming
    Major victory simply getting the car back in the garage ( come-along). Put the front on stands so I could have a look at the p/s leak, and discovered my car is equipped w/ ventilated CV boots! Sure makes it easy to inspect the joints (which it just so happens don’t look so good). Impressive that I drove it 2,400 mi this way, and only a light shimmy. Got just a few steps in on removing the steering box. Fluid is coming from the drivers side bellows (as in, it will drain all the fluid, not just drips). Must be an O-ring or whatever seals the shaft chewed away. Tune in next week.
     

    Street Build 474  6

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
    Loading...
  8. Mech Addict

    Mech Addict Proven Member

    129
    52
    Joined Jun 9, 2019
    Jackson, Wyoming
    Just arrived!!
    Nearly every post I post repeats how I am focused on a stock restoration, but the one “mod” I really wanted is now in my possession. Canada-model belts conversion. I now have the belts, buckles, bolts, and plastic panels that are specific to the Canada models (thank you pleasant Northern neighbors). So sort of a “factory-mod”. My car came to me with mostly missing belts, and one half the p/s front pillar cover anyway, so “new” parts were already needed. Lucked into this find. Can’t wait to swap out the motorized mouse.
     

    Attached Files:

    Street Build 474  6

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
    Loading...
  9. Mech Addict

    Mech Addict Proven Member

    129
    52
    Joined Jun 9, 2019
    Jackson, Wyoming
    My latest victory is the installation of my headliner. It started as a carbon fiber aftermarket part. I had my upholstery person put factory-style covering on it. Unfortunately, the way it was formed made it not want to fit tightly at the windshield end, where it was bowed down in the center. My solution was to find a rearview mirror that would mount to the frame directly, and use that to draw the headliner up tight.
    I found that the rearview mirror from 96--2000 Honda Civic was a decent option. If you get a used one like I did, it even comes with a light grey plastic cover!. It gives three screw holes to mount. I used 6mm U-nuts and some screws that I had left over from a TV wall mounting bracket to make it happen. Took a little trial/error fitting to get it all lined up, but in the end looks pretty close to an OEM look.
    I also taped a bunch of cardboard templates taped to the frame & glass to mark the various mounting hole locations for the headliner, and then drilled the holes and got it in there. I have the visors and visor clips ready, but waiting on the correct screws to arrive from Japan with other items (anybody's guess at this point).
    This was sort of the critical-path stage of my interior restoration, and I have most of everything I need to start getting the rest of the Lego-set interior back together. After I took these photos I got the dash board and carpet in. Trim panels and seats should be in after a few more sessions in the garage, and I will post then.
     

    Attached Files:

    Street Build 474  6

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
    Loading...
    TK's9d2TSi likes this.
  10. Mech Addict

    Mech Addict Proven Member

    129
    52
    Joined Jun 9, 2019
    Jackson, Wyoming
    My frustrating experience with replacement parts continues tonight. After a recent discovery that Timken front outer wheel seals don’t fit my hubs, I have just found that Mevotec control arms are too short! Not much to say that isn’t apparent in the photos. stock arm shown in primer grey, Mevotec in black. The big washer is around 1/4 inch too close to the front axis mount. How do manufacturers continue to sell these parts profitably?? The only way I could have mounted it was to slide the big rubber donut bushing back, partly off the pin, and then the washer wouldn’t even contact the bushing. All the rearward thrust would bear on only the smaller front bushing, which seems dangerous. I know there is a tech article about Dorman vs. Raybestos control arms, but I assume they were both at least dimensionally correct. These are simply not usable replacements. I’ll finish repainting my stock arms and re-use them with the new donut bushings (OEM) that I bought from Amayama. $130 wasted.
     

    Attached Files:

    Street Build 474  6

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
    Loading...
  11. Mech Addict

    Mech Addict Proven Member

    129
    52
    Joined Jun 9, 2019
    Jackson, Wyoming
    Thought I was starting to get my car back to running (after a year on jackstands), and started refilling fluids. Then I start to hear dribbling while adding coolant. Looks like a banjo bolt has lost seal, but a closer look from more angles reveals some kind of bolt hole with nothing in it, and coolant running out of it. After some research and good info from repair experts (thanks JusMX141), there is a freeze plug that should be there, and must have been when I first bought the car last year and drove it 2400mi. I drained all that clean clear water from the radiator drain petcock, and removed the lower rad hose.
    This, apparently, does not remove all the coolant (water). I’m now hoping that this popped freeze plug is the extant of damage by our enthusiastic Wyoming winter. Still, I now have the fans and rad hoses out. Will need to take the intake snorkel and airbox so I can access the flare fitting connecting the water pipe to the turbo. That line blocks a clear access to the (missing) freeze plug. It might work that I don’t have to fully remove the turbo, but I do have one broken exhaust stud, so perhaps time to fix both...
    Anyone replace one of these plugs, and on or off the car???
     

    Attached Files:

    Street Build 474  6

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
    Loading...
  12. Mech Addict

    Mech Addict Proven Member

    129
    52
    Joined Jun 9, 2019
    Jackson, Wyoming
    Removed the turbo and manifold, went OK. Then needed to remove exhaust studs: I was worried. Two were already sheared below the nuts. I sprayed penetrating stuff a day ahead, heated lightly with propane torch, and got the Lisle tool pictured. I’ve read some bad stories about these, but it all went fine. Gasket, bolts and nuts, and copper banjo washers should arrive today. Then back to filling fluids and getting ready to START.
     

    Attached Files:

    Street Build 474  6

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
    Loading...

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