Time-Sert or Helicoil, which would be the better fix for a belt tensioner bolt hole.?
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  • 1 Post By vincentm
Cadillac Seville / Cadillac Eldorado Forum Discussion, Time-Sert or Helicoil, which would be the better fix for a belt tensioner bolt hole.? in Past Cadillac Vehicle Discussion; to repair the threaded hole for the belt tensioner bolt? this bolt has the following specs: Dia: M10mm Pitch: 1.5mm ...
  1. #1
    firstimecaddi's Avatar
    firstimecaddi is offline Cadillac Owners Enthusiast
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    Time-Sert or Helicoil, which would be the better fix for a belt tensioner bolt hole.?

    to repair the threaded hole for the belt tensioner bolt?

    this bolt has the following specs:

    Dia: M10mm
    Pitch: 1.5mm
    Length: 57.5 mm
    Drive: 13mm
    Torque: 50 Nm or 37 lb/ft

    Thanks

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  3. #2
    vincentm's Avatar
    vincentm is offline Cadillac Owners Connoisseur
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    Re: Time-Sert or Helicoil, which would be the better fix?

    Never, ever ever ever ever use helicoil. I wouldn't even recommend Timeserts, only Normserts or studs

    http://huhnsolutions.com/

    C
    arrollcustomcadillac.com

    Northstarperformance.com

  4. #3
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    Re: Time-Sert or Helicoil, which would be the better fix?

    Quote Originally Posted by firstimecaddi View Post
    to repair the threaded hole for the belt tensioner bolt?

    this bolt has the following specs:

    Dia: M10mm
    Pitch: 1.5mm
    Length: 57.5 mm
    Drive: 13mm
    Torque: 50 Nm or 37 lb/ft

    Thanks
    -------------------------------
    to repair the threaded hole for the belt tensioner bolt -
    a helicoil - with some thread-locker should be fine -

    ----------

    Quote Originally Posted by vincentm View Post
    Never, ever ever ever ever use helicoil. I wouldn't even recommend Timeserts, only Normserts or studs

    http://huhnsolutions.com/

    C
    arrollcustomcadillac.com

    Northstarperformance.com
    ---------------------------
    he is only trying to fix the threaded hole for the belt tensioner bolt -

    GEEZ - you can't "stud" EVERYTHING on a Northstar motor -

  5. #4
    vincentm's Avatar
    vincentm is offline Cadillac Owners Connoisseur
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    Quote Originally Posted by basscatt View Post
    -------------------------------
    to repair the threaded hole for the belt tensioner bolt -
    a helicoil - with some thread-locker should be fine -

    ----------


    ---------------------------
    he is only trying to fix the threaded hole for the belt tensioner bolt -

    GEEZ - you can't "stud" EVERYTHING on a Northstar motor -
    My bad the name helicoil creates a kneejerk reaction lol
    basscatt likes this.

  6. #5
    MoistCabbage's Avatar
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    He probably read the thread title a d assumed the OP was talking about HGs.

  7. #6
    vincentm's Avatar
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    Quote Originally Posted by MoistCabbage View Post
    He probably read the thread title a d assumed the OP was talking about HGs.
    Yup lol

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    Re: Time-Sert or Helicoil, which would be the better fix?

    Quote Originally Posted by MoistCabbage View Post
    He probably read the thread title a d assumed the OP was talking about HGs.
    ---------------------------
    I assume so -
    but since he has been having such a wonderful - productive day -
    I thought he needed a little JAZZ -

  9. #8
    vincentm's Avatar
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    Quote Originally Posted by basscatt View Post
    ---------------------------
    I assume so -
    but since he has been having such a wonderful - productive day -
    I thought he needed a little JAZZ -
    Yea, shock absorbers and oncall for the hospital. I ciuld sure use a beer right now. But i gotta be on standby till monday morning

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    DJSG3 is offline Cadillac Owners Fanatic
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    Re: Time-Sert or Helicoil, which would be the better fix?

    Measure the depth of the bolt hole and then put the bolt in the tensioner and measure the threaded length that sticks out of the back of the tensioner. If the hole is deeper you might want to try getting a longer bolt, thats what worked for me.

    DJSG3

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    Re: Time-Sert or Helicoil, which would be the better fix?

    @DJSG3....is helicoils overkill?


    if doing helicoil insert, is there anything in particular that I should look out for or avoid altogether?

  12. #11
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    Re: Time-Sert or Helicoil, which would be the better fix for a belt tensioner bolt ho

    OK some more info. Going on the info above, I measured the depth of the hole, and the amount of thread on the bolt on backside of tensioner. The hole is about, 1 in and I'm getting 7/16th when bolt is thru tensioner. It is an aftermarket tensioner. I took the same measurement with bolt thru tensioner with the original tensioner and I'm getting 3/4 length. So I tried the original tensioner but the bolt will not run up enough to secure the tensioner in place.

    So I'm guessing that just a longer bolt will not be good enough?

  13. #12
    DJSG3 is offline Cadillac Owners Fanatic
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    Re: Time-Sert or Helicoil, which would be the better fix for a belt tensioner bolt ho

    Well that new bolt would only cost about 50 cents, so maybe its worth a try? Another cheapo option would be QuikSteel (steel-reinforced epoxy putty) to retap the hole, other than that helicoil or similar or insert I reckon.

    DJSG3

  14. #13
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    Re: Time-Sert or Helicoil, which would be the better fix for a belt tensioner bolt ho

    Quote Originally Posted by firstimecaddi View Post
    OK some more info. Going on the info above, I measured the depth of the hole, and the amount of thread on the bolt on backside of tensioner. The hole is about, 1 in and I'm getting 7/16th when bolt is thru tensioner. It is an aftermarket tensioner. I took the same measurement with bolt thru tensioner with the original tensioner and I'm getting 3/4 length. So I tried the original tensioner but the bolt will not run up enough to secure the tensioner in place.

    So I'm guessing that just a longer bolt will not be good enough?
    -----------------------------
    just use the helicoil - and be done with it -

  15. #14
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    Re: Time-Sert or Helicoil, which would be the better fix for a belt tensioner bolt ho

    Did the helicoil earlier today and so far pleased with the results.

    Thanks.

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