In Memory of Mazdas247 Member "1338"
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Thread: Engine Rebuild Specs

  1. #1
    mx3ownzj00 low_psi's Avatar
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    ms|slowtege #399

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    Engine Rebuild Specs

    I'm trying to gather specs to compile a database for rebuilds. I know xelderex(sp?) has quite a few torque specs already, but bearing tolerances is something that no one has really elaborated on. Turfburn's journal mentions a few, which I assume were the final tolerances.

    I need to snag a manual with OEM specs for comparison to the different tolerances most people are running.



  2. #2
    What "Lifestyle"? kcbhiw's Avatar
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    Since you're doing an engine teardown and rebuild, you really should invest in a shop manual. There are a lot of torque and clearance specs that would need to be listed otherwise. It's quite handy to have on hand for other projects as well.
    -Kevin

    2002.5 Protege 5 - The Daily
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  3. #3
    Registered Member igdrasil's Avatar

    12psi Protege5

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    not much info on the shop manual for the p5/protege 2.0L.

    The Chilton from the MAZDA 626, Ford Probe and MX6 have everything you need.

    Mods: Oliver Long Rods | CP 8.5:1 Pistons | Microtech LT10S | J&S Knock SafeGuard | HKS Intercooler Meter | Prosport Boost, EGT, OilPress Gauges | MSD RPM Switch w/ shiftlite | Car PC w/ OBDII scan ...etc

  4. #4
    Wagon Power Moonman8's Avatar

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    You can download the service manual and the parts catalog from this website:

    Link

    Here is another online resource that is identical to the shop manual:

    Link
    DAMN THIS IS AN OLD PICTURE!

  5. #5
    mx3ownzj00 low_psi's Avatar
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    ms|slowtege #399

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    I realize having a shop manual is required. This thread was created to gather the specs people have used that don't match OEM specs.

    I'll have to check out that first link when I get home, thanks Moonman. I wasn't aware there was anything out there other than protege5ugly.net
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  6. #6
    P1kaChu Haz P4rts 4 yU0 Captain KRM P5's Avatar
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    i have the engine rebuild manual in my hands

  7. #7
    ^o,O^ weltschmerz ^o,O^ TStar's Avatar
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    where's the link, captain ?

  8. #8
    P1kaChu Haz P4rts 4 yU0 Captain KRM P5's Avatar
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    Quote Originally Posted by TStar
    where's the link, captain ?
    its a paper copy, mein freund
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  9. #9
    ^o,O^ weltschmerz ^o,O^ TStar's Avatar
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    i know, but where's the link *hint*
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  10. #10
    I am the Stig TurfBurn's Avatar

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    there is also a specific engine rebuild manual available that has ALL the specs in it.. but I don't have a link or more info at this point (and I'm really tired so I'm not thinking straight as I'd like)
    Technical blog now available:
    Tuned to Think

    Feel free to provide suggestions for future articles.

  11. #11
    mx3ownzj00 low_psi's Avatar
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    ms|slowtege #399

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    Turf, please post your final tolerances/specs you used in your build. Apparently people are missing the point of this thread...
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  12. #12
    I am the Stig TurfBurn's Avatar

    '01 Yellow MP3 #1026

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    Piston to cylinder clearancing with 10 thou overbore CP pistons: 3.5 thousandths
    Rod to crank bearing clearance (Big End)- Stock
    Crank to Mains clearancing: 1.8-1.9 thousandths
    First Ring Gap: .020-.022"
    Second Ring Gap: .024-.026"

    There you go!
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  13. #13
    mx3ownzj00 low_psi's Avatar
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    ms|slowtege #399

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    Thank you! Now that the ice has been broken, the others can chime in
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  14. #14
    Registered Member blthlt's Avatar

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    bump...need more input.
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  15. #15
    Dick Ripper iracemine's Avatar


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    Steve I know you are running boost, but why soo much piston ring gap? anyone else run that much?
    You drive fast and get a ticket, I drive fast and get a trophy.

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