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Fargostreet.com

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Miata head gasket

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  • BookemB Offline
    BookemB Offline
    Bookem
    wrote on last edited by
    #1

    Wondering if anyone knew how difficult replacing a headgasket on 94 miata 1.8, I've never worked on ohc and this is a dohc, also wondering what shops in fargo would be good to make sure the head isn't warped, a guy I work with overheated the engine, put in a new radiator, it now runs fine but uses coolant if this isn't too difficult I was gonna do it for him any info would be great

    Legacy GT
    Gmc Suburban

    I'll keep my money, guns and freedom. You keep the change.

    Danny: What about Fargostreet?
    Hallorann: Fargostreet?
    Danny: You're scared of Fargostreet, ain't ya?
    Hallorann: No, I ain't.
    Danny: Mr. Hallorann. What's in Fargostreet?
    Hallorann: Nothin'! There ain't nothin' in Fargostreet. But you ain't got no business goin' in there anyway. So stay out! You understand? Stay out!

    ɥƃnouǝ ǝɯ ʇɥƃnɐʇ ǝʌɐɥ ʎǝɥʇ ʞuıɥʇ ʇuop ı ƃuıɥʇ ɹǝʇndɯoɔ sıɥʇ ʇǝƃ ʇuop ı

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    • K Offline
      K Offline
      KA-T_240
      wrote on last edited by
      #2

      buy a repair book or factory service manual. i havent worked on a miata before, but from my experience the hardest part of taking the head off was making sure you do everything in the proper order, like remove/install/torque.\

      as far as checking the head, mazda, or any off the engine builders in town should be able to do it

      PM me for:
      Sandblasting(I use glass beads)
      Diesel repairs or performance products.

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      • wesholeW Offline
        wesholeW Offline
        weshole
        wrote on last edited by
        #3

        They are easy. Go to www.miata.net that is full of info and will be an easy fix. The nice thing is that it is not an interference engine so it wont very likely bend valves. But I would do the timing belt and water pump while your in that far. Speaking from experience. Oh, and a Haynes manual is gonna be your best friend.

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        • BookemB Offline
          BookemB Offline
          Bookem
          wrote on last edited by
          #4

          Thanks guys, sometimes I fear the unknown, and I have never had an ohc engine apart that far but done plenty of other pushrod type engines, again thanks for he input

          Legacy GT
          Gmc Suburban

          I'll keep my money, guns and freedom. You keep the change.

          Danny: What about Fargostreet?
          Hallorann: Fargostreet?
          Danny: You're scared of Fargostreet, ain't ya?
          Hallorann: No, I ain't.
          Danny: Mr. Hallorann. What's in Fargostreet?
          Hallorann: Nothin'! There ain't nothin' in Fargostreet. But you ain't got no business goin' in there anyway. So stay out! You understand? Stay out!

          ɥƃnouǝ ǝɯ ʇɥƃnɐʇ ǝʌɐɥ ʎǝɥʇ ʞuıɥʇ ʇuop ı ƃuıɥʇ ɹǝʇndɯoɔ sıɥʇ ʇǝƃ ʇuop ı

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          • MisterCMKM Offline
            MisterCMKM Offline
            MisterCMK
            wrote on last edited by
            #5

            Have you done a compression test on the car to see if it is indeed a headgasket?

            FASTER THAN DUBBSY

            > thrash;315544 wrote:
            > I noticed that the new 5.0 valve covers say "Ford Motorsport" or something on them. Instead, the valvecovers should be a big bald eagle, holding a rifle in one talon, an american flag in the other, eating apple pie, and shitting on the outline of europe.
            >
            > Ford is back :)

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            • wesholeW Offline
              wesholeW Offline
              weshole
              wrote on last edited by
              #6

              MisterCMK wrote:
              Have you done a compression test on the car to see if it is indeed a headgasket?

              A compression test isnt a failsafe way to detect a blown headgasket.

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              • wesholeW Offline
                wesholeW Offline
                weshole
                wrote on last edited by
                #7

                which also leads me to wondering what makes you think it is blown? Not a common problem in the Miata 1.6 or 1.8.

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                • MisterCMKM Offline
                  MisterCMKM Offline
                  MisterCMK
                  wrote on last edited by
                  #8

                  weshole wrote:
                  A compression test isnt a failsafe way to detect a blown headgasket.

                  yes, I know that, but its a good indicator of one.

                  FASTER THAN DUBBSY

                  > thrash;315544 wrote:
                  > I noticed that the new 5.0 valve covers say "Ford Motorsport" or something on them. Instead, the valvecovers should be a big bald eagle, holding a rifle in one talon, an american flag in the other, eating apple pie, and shitting on the outline of europe.
                  >
                  > Ford is back :)

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                  0
                  • BookemB Offline
                    BookemB Offline
                    Bookem
                    wrote on last edited by
                    #9

                    I mentioned to the guy we should do a compression test, but it is using coolant pretty fast(half a gallon every hundred miles or so) it's not leaking externally and it was overheated for an extended period of time, plus I like tearing stuff apart....lol I just got done replacing a head off of a dodge minivan due to a horrible engineering defect, and dsm is off the hook on this one it wasn't the 3.0 it was the 3.8 which is also not mopar, it is made by cummins which I thought was odd since it wasn't a diesel, but their plant in mexico makes gas engines

                    Legacy GT
                    Gmc Suburban

                    I'll keep my money, guns and freedom. You keep the change.

                    Danny: What about Fargostreet?
                    Hallorann: Fargostreet?
                    Danny: You're scared of Fargostreet, ain't ya?
                    Hallorann: No, I ain't.
                    Danny: Mr. Hallorann. What's in Fargostreet?
                    Hallorann: Nothin'! There ain't nothin' in Fargostreet. But you ain't got no business goin' in there anyway. So stay out! You understand? Stay out!

                    ɥƃnouǝ ǝɯ ʇɥƃnɐʇ ǝʌɐɥ ʎǝɥʇ ʞuıɥʇ ʇuop ı ƃuıɥʇ ɹǝʇndɯoɔ sıɥʇ ʇǝƃ ʇuop ı

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                    • 24valvenotak2 Offline
                      24valvenotak2 Offline
                      24valvenotak
                      wrote on last edited by
                      #10

                      is there a coolant passage in the intake mani and throttle body wes?

                      Getcher green hat, we are goin fishin.

                      > 63vette;288530 wrote:
                      > I dont know shit about building cars.

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                      • wesholeW Offline
                        wesholeW Offline
                        weshole
                        wrote on last edited by
                        #11

                        92BlackTT wrote:
                        is there a coolant passage in the intake mani and throttle body wes?

                        Throttle body?.......On my 1.6 there is. Notsure on the 1.8 though. I would assume so.

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                        • wesholeW Offline
                          wesholeW Offline
                          weshole
                          wrote on last edited by
                          #12

                          I take that back. No there isn't one on either engine.

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                          • BookemB Offline
                            BookemB Offline
                            Bookem
                            wrote on last edited by
                            #13

                            Just curious if anyone has a head laying around for that miata? 94 1.8

                            Legacy GT
                            Gmc Suburban

                            I'll keep my money, guns and freedom. You keep the change.

                            Danny: What about Fargostreet?
                            Hallorann: Fargostreet?
                            Danny: You're scared of Fargostreet, ain't ya?
                            Hallorann: No, I ain't.
                            Danny: Mr. Hallorann. What's in Fargostreet?
                            Hallorann: Nothin'! There ain't nothin' in Fargostreet. But you ain't got no business goin' in there anyway. So stay out! You understand? Stay out!

                            ɥƃnouǝ ǝɯ ʇɥƃnɐʇ ǝʌɐɥ ʎǝɥʇ ʞuıɥʇ ʇuop ı ƃuıɥʇ ɹǝʇndɯoɔ sıɥʇ ʇǝƃ ʇuop ı

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                            0
                            • wesholeW Offline
                              wesholeW Offline
                              weshole
                              wrote on last edited by
                              #14

                              Bookem wrote:
                              Just curious if anyone has a head laying around for that miata? 94 1.8

                              Talk to Nick at Straightline specialties. He did have one. Not sure if he still does though.

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                              0
                              • BookemB Offline
                                BookemB Offline
                                Bookem
                                wrote on last edited by
                                #15

                                Alrighty, thanks Wes, anyone know how late they are open tonight?

                                Legacy GT
                                Gmc Suburban

                                I'll keep my money, guns and freedom. You keep the change.

                                Danny: What about Fargostreet?
                                Hallorann: Fargostreet?
                                Danny: You're scared of Fargostreet, ain't ya?
                                Hallorann: No, I ain't.
                                Danny: Mr. Hallorann. What's in Fargostreet?
                                Hallorann: Nothin'! There ain't nothin' in Fargostreet. But you ain't got no business goin' in there anyway. So stay out! You understand? Stay out!

                                ɥƃnouǝ ǝɯ ʇɥƃnɐʇ ǝʌɐɥ ʎǝɥʇ ʞuıɥʇ ʇuop ı ƃuıɥʇ ɹǝʇndɯoɔ sıɥʇ ʇǝƃ ʇuop ı

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