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Valve guide replacement?

Discussion in 'XJ Technical Chat' started by Thrasher, Apr 22, 2020.

  1. Thrasher

    Thrasher Member

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    Who has had to replace valve guides in their JX?
     
    Thrasher, Apr 22, 2020
    #1
  2. Minimutly

    Minimutly Well-Known Member

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    Not on an xj, but if you have to - beware, it's not the simple job some people would have you believe. Valve guides are seldom concentric, so you push a new one in that is 2 thou out, and the one your replacing was 2 thou out the other way - there you go you now have to cut 4 thou out of the seat to get contact, more to get a good seat.
    The eccentricity can sometimes be useful - if you have a race head and the seats are running into each other you can offset both to gain a useful bit - breathtaking stuff though.
     
    Minimutly, Apr 22, 2020
    #2
  3. Thrasher

    Thrasher Member

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    No worries.
     
    Thrasher, Apr 22, 2020
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