JohnnyTightlips Build "Maximum Carnage"

Discussion in 'Mazdaspeed 3 Build Diaries' started by JohnnyTightlips, Oct 9, 2018.

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  1. JohnnyTightlips

    JohnnyTightlips Motorhead Silver Member

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    Smol Update:

    I took my car to get an alignment and they ended up breaking a bolt in the rear. I had literally done nothing besides brakes and sway bar back there since I bought the car. Due to it being a rusty disaster I was pretty lazy about it. But now with a bolt broken I decided to tear it all down and put in some new goodies.

    I am pretty much replacing every part except for the trailing arms. I am going to sand blast them and pain them. I did get new bushings for them though. I am not planning to make it perfect or rust free as the car is old and tired but I did want to get the suspension back in good order.

    It took quite a while to get the bolts out but the help of a heat tool, map gas torch, time, impacts etc made it all come out without breaking anything. I also ordered the bushing kit from damond as my rear brakes were not worn even at all. I bought new calipers too. I am pretty excited to have this checked off my list and get an alignment done on it. Parts list below.

    upload_2021-11-15_8-28-34.png
    upload_2021-12-15_14-51-36.png
    upload_2021-12-15_14-51-48.png

    I still have a couple more bolts to get out but I am getting close and ready for the fun part of new parts. I will say my Megan suspension parts as still in good working order and not leaking or broken. They have not been treated super kind so that is legit how they have held up.
     
    Last edited: Dec 15, 2021
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  2. Cfoldone

    Cfoldone Silver Member

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    Excited to see your posts . This one is awaiting my first touches. Trailered home the 6 and it has to wait some more... until 3's rebuild gets completed. PXL_20211115_184913314.jpg
     
    Cfoldone, via a mobile device, Nov 15, 2021
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  3. BAT-man

    BAT-man Greenie Member

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    Gonna throw some antiseize on those suckers when putting her back together? It's like sriracha for cars....
     
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  4. JohnnyTightlips

    JohnnyTightlips Motorhead Silver Member

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    All bolts are being soaked in Krud Kutter - Rust Remover. It works great , just fill up an old pickle jar and give them a few hours. I have probably done over 100 bolts in the mix that is in there now, probably could use a refresh. I will then being putting antiseize on them. They all seem in good enough shape to re-use. If this car was going to last me another 20 years I would maybe look at some fresh bolts.

    upload_2021-11-15_16-26-30.png
     
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  5. Easter Bunny

    Easter Bunny Professional Engineer Platinum Member

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    How many miles do you have on the car now?
     
    Easter Bunny, via a mobile device, Nov 15, 2021
  6. BAT-man

    BAT-man Greenie Member

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    Yeah KrudKutter or WD40's version of rust removal in a pinch work amazeballs
     
  7. JohnnyTightlips

    JohnnyTightlips Motorhead Silver Member

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    I'd have to double check, I think it's about 170k.
     
    JohnnyTightlips, via a mobile device, Nov 16, 2021
  8. JohnnyTightlips

    JohnnyTightlips Motorhead Silver Member

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    Update:

    Rear suspension is all done, all parts fit without much issues. Took some time to get it all together but wasn't "hard".
    upload_2021-12-1_9-42-29.png
    Bushing had to be pressed in and out for the knuckle to the body. Position is important too so you need to mark the old one first.

    upload_2021-12-1_9-42-42.png

    I bought new brake shields that were meant for a focus or some shit. They "fit" but I had to drill holes for them to align the the mazda bolt holes. The reason I did not buy mazda ones as it was like an 8-10 week wait and that is dumb. I used my old ones as a template to get the right bolt holes.
    upload_2021-12-1_9-45-18.png
    upload_2021-12-1_9-45-34.png

    I got new rear calipers as mine were pretty beat and I had to cut them to get the e brake cable out. I ended up getting Damond bushings too. I believe I need to bleed the brakes more but they brake great with a little more pedal. The brakes do feel smoother and seem to engage more evenly. I am able to modulate the brake pedal more where light touches are actually felt. I changed the fronts as well. Surprisingly my EBC yellows up front have a ton of meat on them still so that is nice. I changed out the rear pads and rotors for. I went with Raybestos Element 3, quality was great and they have an anti rust coating.
    upload_2021-12-1_9-46-54.png

    I now need to get the rear aligned at some point. Car seems straight enough but it would be good to get it properly dialed. For anyone looking at how to properly bleed the brakes on this car "I saw this too late" follow this thread. https://www.mazda3forums.com/thread...pposed-to-bleed-brakes-on-your-mazda3.394323/

    tldr; Bleed Order

    (2)LF - RF(4)
    ...|xxxxxxx|
    ...|xxxxxxx|
    ...|xxxxxxx|
    ...|xxxxxxx|
    (3)LR---RR(1)
     
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  9. aaronc7

    aaronc7 Greenie Member

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    Are those dots on the left side like oil stains on the garage floor or what?
     
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  10. JohnnyTightlips

    JohnnyTightlips Motorhead Silver Member

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    Brake fluid....
     
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  11. JohnnyTightlips

    JohnnyTightlips Motorhead Silver Member

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    Smol Update:

    Brakes are working great, car decided to do a start and idle and NO MORE FUEL PRESSURE, then ded. I had my cousin give me a ride home as it was already dark out and figured I would look at it the next day. I put out the call and @andale927 said to check the fuel pump resistor on the frame rail. I figured this could be it as the car started fine and ran fine for a min and then when it would kick the pump down to a lower voltage it just stopped.

    I brought some wire with me and YEP, that fixed it. I made it connect nicer for the drive home, this is a picture of the test.
    upload_2021-12-15_14-44-51.png

    Not sure if I will be getting a new resistor or just leave it in bypass mode. It can run full voltage all the time so I don't really know why it exist unless it is an NVH thing. https://edgeautosport.com/mazda-oem-resistor-with-bracket-mazdaspeed-3-2010-2013/
    upload_2021-12-15_14-46-15.png


    On another note I have noticed a shake on acceleration "moderate to heavy". I have pretty much everything new up front and think it is related to drive shafts. I guess if they wear out when you apply TQ they can get off center and make a wobble. I have not been super kind to the current axles. I bought some new ones to swap and will see what that does.
     

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    Last edited: Dec 16, 2021
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  12. BAT-man

    BAT-man Greenie Member

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    Same thing happened to RX-8, it was so random that it took a while to pinpoint. Ran it for 30k with bypass, couldn't tell of any ill effects, folks on the rx8 forums do the same. My theory is that the idle pressure (the one that needs the resistor) is lower to extend in-tank pump life. With the pump being such a pain to get to, it makes more sense for the speeds than the rx-8.
     
    Last edited: Dec 16, 2021
  13. JohnnyTightlips

    JohnnyTightlips Motorhead Silver Member

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    Yeah I don't think it is necessary for what I am doing. I will make a nicer bypass like I had before with the actual pins, maybe I can find what plug it is and just get one. I could cut the bad resistor up too and use that plug.
     
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  14. Cfoldone

    Cfoldone Silver Member

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    Thank you for sharing. I always wonder about that resistor. My experience was with old points / coils and that was important for points longevity. So same thoughts on pump life.
    I remember you have a new in tank pump, so I hope this lives long and prosper.
     
    Cfoldone, via a mobile device, Dec 16, 2021
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  15. JohnnyTightlips

    JohnnyTightlips Motorhead Silver Member

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    Car is fixed, I ended up cutting the harness off the bad resistor and soldering it. That worked well.

    I also fixed my wobble / shake on acceleration. It was the passenger axle. It must have something internally wrong causing it to get out of center when TQ is applied.
    Here is a video of the old and new. This gives an idea of how a good axle should feel. Super happy as the car feels new and is smooth again.
     
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