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3rz Piston order (HELP)

Discussion in '1st Gen. Tacomas (1995-2004)' started by Adriz21, Feb 8, 2025.

  1. Feb 8, 2025 at 2:32 PM
    #1
    Adriz21

    #1
    Adriz21 [OP] Member

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    Hi everyone im rebuilding my 3rz right now and i dont recall what order my pistons go. There is letters on the top of the pistons “A” on 2 of them and “B” on the other 2 can anyone help PLEASE.
     
    Adriz21, Feb 8, 2025
    #1
  2. Feb 8, 2025 at 4:23 PM
    #2
    ControlCar

    #2
    ControlCar My Moto: Help & Learn…period.

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    Clock Volt meter/LSPV Delete/Hyundai 16’s/FP gauge/after 9months of wrenching ZERO oil leaks
    Piston size the same

    check out firing order
    A could be inside
    B could be outer 2
    Or opo
     
    ControlCar, Feb 8, 2025
    #2
  3. Feb 8, 2025 at 5:05 PM
    #3
    Rusty66

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    Rusty66 Ain’t Afraid

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    Probably corresponds to the tolerance of the cylinder bore. For example: Subaru EJ series has an A or B stamped on the block, and you choose the piston by that letter.
     
    Rusty66, Feb 8, 2025
    #3

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