Cas' 800+ or Bust Build

Discussion in 'Mazdaspeed 3 Build Diaries' started by CMajor, Aug 23, 2016.

Watchers:
38 users.
  1. Ssinstaller

    Ssinstaller Greenie Member

    Joined:
    Mar 16, 2017
    Posts:
    76
    Trophy Points:
    18
    Location:
    Nc
    Ratings:
    +37 / -0
    It didn't die when the timing slipped. I actually drove it home before I figured out what the damage was.. So hopefully I'll be fine once I get it back together. If not, I'll rebuild the head, and the bottom end will be keyed.
     
    Ssinstaller, via a mobile device, Nov 23, 2018
  2. AYOUSTIN

    AYOUSTIN Silver Member

    Joined:
    Feb 10, 2016
    Posts:
    688
    Trophy Points:
    93
    Location:
    Lisle IL/Big Rapids MI
    Ratings:
    +951 / -1
    How far did it slip? Usually you can get 5-10 degrees before there's any interference. On some motors if your pistons have large enough valve reliefs and you're on stock cams it's not an interference motor anymore. Either way, I wouldn't spend the money on keying it unless you're trying to make some crazy power. The friction washers work fine for 98% percent of people who build their motor.

    If you haven't started tearing it apart yet do a leakdown. If it's not leaking you're in good shape.
     
    • Like Like x 1
  3. Ssinstaller

    Ssinstaller Greenie Member

    Joined:
    Mar 16, 2017
    Posts:
    76
    Trophy Points:
    18
    Location:
    Nc
    Ratings:
    +37 / -0
    I used a bore scope after it slipped and didn't see any marks on the pistons so it think its fine. Cams were only slighly off, but the ckp was about two teeth off on the crank pulley.
     

    Attached Files:

    Ssinstaller, via a mobile device, Nov 23, 2018
  4. AYOUSTIN

    AYOUSTIN Silver Member

    Joined:
    Feb 10, 2016
    Posts:
    688
    Trophy Points:
    93
    Location:
    Lisle IL/Big Rapids MI
    Ratings:
    +951 / -1
    Yea you're mostly likely fine. 2 teeth isn't a whole ton.
     
  5. Ssinstaller

    Ssinstaller Greenie Member

    Joined:
    Mar 16, 2017
    Posts:
    76
    Trophy Points:
    18
    Location:
    Nc
    Ratings:
    +37 / -0
    This is a better pic of the cams with crank at tdc.
    My motor was missing the friction washer between the oil pump gear and timing chain gear, as well as the friction washer behind the vvt when i tore it down.
    The cams were still aligned, just off a little bit from the crank..
     

    Attached Files:

    Ssinstaller, via a mobile device, Nov 23, 2018
    • Like Like x 2
  6. Sho

    Sho Platinum Member

    Joined:
    Feb 10, 2016
    Posts:
    574
    Trophy Points:
    93
    Location:
    Akron, OH
    Ratings:
    +908 / -0
    Sho, via a mobile device, Dec 13, 2018
    • Like Like x 3
  7. CMajor

    CMajor Gold Member

    Joined:
    Feb 10, 2016
    Posts:
    189
    Trophy Points:
    63
    Location:
    Cincinnati, OH
    Ratings:
    +255 / -0
    So I have driven my car all week to work and to downtown Cinci and back with no major issues. I believe it was this past Tuesday night I was just kind of looking over the car and noticed it smelled a little like gas so I found there was a tiny leak from the fuel basket. The big o-ring that seal the top hat to the tank must have shifted slightly so while fixing that I accidentally pulled one of the fuel pumped off the fuel line in the basket without knowing. Went to start my car in the morning, it started but then died like 5 minutes later. I was able to troubleshoot and figure out what I did, always look in the last spot you touched! I could hear the pump running so at first I was thinking it couldn't be that but it was basically just pumping fuel back into the basket. Got that fixed and haven't had any other issues with it. Coolant is still leaking slightly, I know exactly where it's coming from but the hose is not wanting to seal on the OEM hose since we replaced the hardlines with flexible ones running back to the fire wall. I've readjusted the hoses like 4-5 times and each time it leaks less so I'll get it eventually. Lastly I had a blow out on Thursday morning, on my way to work. Luckily I still had my donut in the back so I put that one and continued into work. Swapped over to my winter setup that night and all is well with the car. It was pouring yesterday and all my fender liners are gone so I was slightly nervous something was going to get wet that didn't need to be but I was fine. Getting my confident in it as I drive it, I'm others know that feeling.

    Yesterday I did my 500 mile oil change (more like 530-40) and already put another 60 miles on it so roughly 600 miles on the motor and everything looks great. Oil pressure is still in the high 70's low 80's cruising on the highway (with lots of engine breaking).
    I missed taking pictures like this, she looks so good
    [​IMG]

    Edit: Well my wife took a video and it doesn't seem to work when uploading from Imgur, I'll see if I can find another way to share, probably YouTube. It's nothing crazy just get to hear the exhaust a bit.

    Edit 2:


    Here's the blown tire that happened on my way to work
    [​IMG]
     
    Last edited: Dec 16, 2018
    • Like Like x 4
  8. CMajor

    CMajor Gold Member

    Joined:
    Feb 10, 2016
    Posts:
    189
    Trophy Points:
    63
    Location:
    Cincinnati, OH
    Ratings:
    +255 / -0
    Okay so another ~300 miles on the engine now. Roughly 800 miles total, I was planning on changing the oil again at 750 but didn't have time so I get to it this weekend before driving again. Coolant leak is still there, another thing I'll fix this weekend. I just need to add another clamp to the hose I've been messing with. There's only a clamp on one side of the brass fitting that was installed. So basically two hoses meeting at the brass fitting and currently only one clamp. Sho helped me out <3, I was driving home from work and looked down to see my coolant temps really high. He sent me a little video on how to burp the coolant system since I had not done that before. Scared the crap out me but I got it sorted out to get home. Just keeping an eye on temps until it's fixed. Lastly my O2 sensor is going out, got a code for it and it was reading 14.85 while driving. A few power cycles later and it's reading again but still going to replace it. Found one on Amazon that was 110 bucks, way better than the 300 to go back OEM. Oh and also updated my signature:)
     
    Last edited: Jan 4, 2019
    • Like Like x 4
  9. CMajor

    CMajor Gold Member

    Joined:
    Feb 10, 2016
    Posts:
    189
    Trophy Points:
    63
    Location:
    Cincinnati, OH
    Ratings:
    +255 / -0
    Alright I have 1000 miles on the motor and got my Brad Penn oil delivered from Amazon. I was going to change it tonight but something came up and couldn't. I'll be doing it this weekend. I have 50K on the chassis now just rolled over that today. I also ordered a multimeter so I can start the wiring for my PI system. I know being an Electrical Engineer I probably should have bought one earlier but oh well I have one now. I took some WOT logs around when I hit the 800 mile mark. Threw it in Vdyno and looks like I'm sitting right around 325HP on spring pressure. Running slightly lean up top so I let out around 5500. Still need to do a MAF cal, been so long I forgot how to do it LOL. It's been getting a lot colder so probably won't be able to pull anymore logs for a bit. I will say my setup flows a shit ton of air and I'm already at 80% IDC. I'll report back with progress on the PI system this weekend.
     
    • Like Like x 3

Share This Page

Users Viewing Thread (Users: 0, Guests: 0)