Rebuilding advice?

Discussion in 'Mazdaspeed 3/6 Engine' started by jsilva, Sep 24, 2020.

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  1. jsilva

    jsilva Silver Member

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    Thanks! I have read through it but there are a lot of posts not related to what I’m doing (casual conversation or about the transmission, etc) and the thread is so long it’s hard to know where to look :)

    Isn’t the issue with the default size Manley rings that there’s too much gap already? What am I missing?
     
    jsilva, via an iPhone, Nov 24, 2020
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  2. drew10101010

    drew10101010 Silver Member

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    If I'm not mistaken all piston rings come too tight and need to be opened up. You can either get a ring filer which is about 50$ or let your shop do it. I would probably recommend you let the shop do it. There's some nuances to it such as the rings need to be filed flat and there can't be burrs and you have to grind in a certain direction.
    https://www.mazdaspeeds.org/index.php?threads/setting-piston-ring-gap.8714/



    Upon reading JohnnyTightlips thread I'll probably just do the same too. .020 and .024. Jay from the Real st. video said to file only one side, not both. CP recommends .004 - .008 between the rings. https://www.cp-carrillo.com/files/cp_instructionsheet_2019final-web.pdf
     
    Last edited: Nov 24, 2020
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  3. jsilva

    jsilva Silver Member

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    What is the purple stuff he uses in this video? You can see it at 5:20 and at 5:40 on the bearings.

     
    jsilva, via an iPhone, Nov 26, 2020
    #43
  4. drew10101010

    drew10101010 Silver Member

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    It's that purple drank gel lol

    nah its assembly lube.

    Redline is on sale at edge during BF for $7.15 4oz.
     
    Last edited: Nov 26, 2020
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  5. jsilva

    jsilva Silver Member

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    Well ... I placed a few orders for most of the parts I need (including the Corksport hpfp internals and their Stage II intake). I also stopped by Harbor Freight to get their $62 engine stand.

    Does anyone know off hand what size bolts to use for the engine stand?
     
    jsilva, via an iPhone, Nov 27, 2020
    #45
  6. drew10101010

    drew10101010 Silver Member

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    You bolt it to the transmission bolt holes. On mine I used two random bolts that I took off that worked and had to get two new long bolts with washers. Btw I got the stand for like 40 bucks. The bolts were silver and could possibly be the transmission bolts. I think they were 14's. Those two thread on, but the other two are open holes without thread. So you'll prob have to go to Home depot. 20201122_015133.jpg

    Here are the bolts. Two are oem( the small middle ones) all are 14mm.
    bolt.jpg
     
    Last edited: Nov 28, 2020
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  7. jsilva

    jsilva Silver Member

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    In this video, around 6:20, are they just using a hose with clamps? Or is that a specialised tool?

     
    jsilva, via an iPhone, Nov 27, 2020
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  8. drew10101010

    drew10101010 Silver Member

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    Are you talking about this? 1.JPG
    That's a piston ring compressor. 10$ on amazon or ebay. Or you might be able to rent at Autozone. Before you do this you should have the shop manual for all the torque specs and instructions on how to do things. These videos are more like entertainment.

    You need to follow steps like this:
    123.JPG
    There should be a shop manual somewhere.
     
  9. jsilva

    jsilva Silver Member

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    Yes that’s it, thanks! I looked and found the same (or similar) one on Amazon.

    I do have all of the shop manuals :)
     
    jsilva, via an iPhone, Nov 28, 2020
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  10. L337TurboZ

    L337TurboZ Silver Member

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    The solid cup style piston installer is great. I use them at work on LS and Ecotec engines. Get a light amount of oil on your finger and coat the top area of the cylinder before you push them in and they will drop in smooth. Never cracked a ring using them.
     
    L337TurboZ, via a mobile device, Nov 28, 2020
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  11. jsilva

    jsilva Silver Member

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    I finally got 4 hours to work on tearing down the broken engine today. Nearly got to the point of getting it out but not quite (I have no engine hoist so I’m disassembling it in place).

    Anyway, I saw another hole in the block. I’m anxious to see all of the damage once it’s out (probably Tues).

    I also saw that the piston for the rod that broke was rotated and had hit the valves. The head gasket also had coolant all over it.

    DC9BE5D9-2BF4-4945-83A5-AF5DACCA9FC6.jpeg
     
    jsilva, via an iPhone, Dec 13, 2020
    #51
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