The head bolt rod on my engine is striped.

Discussion in 'Heads and Cylinders' started by bob1352, Nov 27, 2017.

  1. bob1352

    bob1352 New Member

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    One of the head bolt rods for my engine is stripped and I cannot replace the bolt. I have an inch dye set so I am thinking I should take out the rod and rethread it. What other options do I have?
     

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  2. Greg58

    Greg58 Well-Known Member

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  3. crassius

    crassius Well-Known Member

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    which end is stripped? if top, then it is either m8x1.0 or m8x1.25 - many h/w stores have threaded rod in those sizes that you can cut to fit (and usually what they sell is better steel than original)

    if bottom, then you might need to work on the cases & maybe go to 3/8 inch or 5/16 depending how much metal is left
     
    #3 crassius, Nov 27, 2017
    Last edited: Nov 28, 2017
  4. Greg58

    Greg58 Well-Known Member

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    What I see in the picture looks like the top, if one striped chances are the other three are made of the same material so replacing all four would be best.
     
  5. Jroge1523

    Jroge1523 New Member

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    In my engine my head studs went thru the case any ideas on how to fix that
     
  6. crassius

    crassius Well-Known Member

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    if you mean they broke thru and left crud inside, there's no easy fix and splitting cases and cleaning may not get all the little pieces that can trash a bearing - I'd save it for spare parts and get a new motor
     
  7. Jroge1523

    Jroge1523 New Member

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    I want to do that but this is my 3rd motor what is the best way to fix loctight jb weld sauter plumbers tape
     
  8. crassius

    crassius Well-Known Member

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    heli-coil is easiest - tapping the hole larger to put in a brass bolt, then flattening the bolt and drilling and tapping that to original size is best, but harder
     

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