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Is this TDC?

Discussion in 'Under the Hood' started by Raceit, September 17, 2002.

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    1. Raceit

      Raceit Elite Explorer

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      I'm doing the timing chain on my '91 Ex. The 2 shop manuals I have do not make it very clear at all how to get to TDC.

      This is what I think TDC is right now. The pointer is right at the "0".

      The manual makes it seem like that missing tooth is TDC, and they want that missing tooth underneath the Camshaft Position Sensor. (Which is that black cylinder shaped object covered in oil.)

      I can turn the engine with a ratchet and I can feel the compression come and go, but I'm not familiar enough with engines to determin TDC by that means.

      TIA
       

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    3. 410Fortune

      410Fortune ELITE BRONCO2ERER Staff Member Moderator

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      How in the world do you get your camera in there??????

      Sorry I cant help, I believe that is TDC butdont take my word for it.
       
    4. Raceit

      Raceit Elite Explorer

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      It's easy once there's nothing there. :D
       

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    5. 410Fortune

      410Fortune ELITE BRONCO2ERER Staff Member Moderator

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      Hope you got a new belt, thermostat, and waterpump while you're in there!!! Nice job with the tape holding up the A/C!!!!! I feel you man, been there done that a few times on my old 2.9L......

      I figured you had some fiber optic attachment for your digital camera.......
       
    6. RFR2212

      RFR2212 Typing Police Elite Explorer

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      Well to set the timing on mustangs (according to my manuals) is ya just go and pull Cyl #1 plug, and either look, or cover the plug hole with yer finger till ya get pressure built up, so as, it's TDC... then it should be gauranteed, by matching the balencer thingy on the front that ya took the photo of :)

      Hope that helped a lil
      Pete
       
    7. SteveVB

      SteveVB Elite Explorer

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      yes..

      yea thats it... , Pull the cover- with compression in #1 and the balancer at the marks the cam and crank sprockets should be aligned. If not just align the marks, if you are just changing the chain it doesnt really matter if you are at 1 or not. With the marks lined up you will be good to go.

      I put a screw driver in the #1 plug so I can see it move, and hear the escaping pressure.

      All of the screws for the timing guides, chain and idler are torx - 25 or 30, 40 and 55 if I remember correctly- dont forget to remove the tensioner clip :)
       

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