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flywheel and pressure plate bolts reusable?

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  • flywheel and pressure plate bolts reusable?

    I'm in the process of fitting a 4speed from a shagged 1.6 engine to a good engine that originally had an auto box here, just wondering if the flywheel and pressure plate bolts had to be replaced or can they be reused?
    from what I can see the bentley says to clean and reassemble the originals, is this correct?

  • #2
    You should be fine to reuse the bolts mate, just do em up tight.
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    • #3
      Technically you can reuse them, but if they look pretty tired i'd look at replacing them while you're going. It's not like they're all that expensive and it's nice peace of mind.

      APR Tuned | KW Suspension | INA Engineering | Mocal Oil Control |
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      • #4
        no worries reusing them Dan but I recommend some thread loack as you don't want them falling out
        77 Golf tarmac rally
        89 porsche 911
        80 Rabbit 4dr
        11 mk1 and 2\'s in various states of undress
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        • #5
          yeah, blue thread lock is the stuff also helps get them undone the next time.
          '07 Touareg V6 TDI with air suspension
          '98 Mk3 Cabriolet 2.0 8V
          '99 A4 Quattro 1.8T

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          • #6
            the amount of torque they spec i would and do replace them.

            Originally posted by Preen59
            I would have gotten wood from the picture message you sent me.. But I was sniffing Nitro, so i already had it. Hahaha.

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            • #7
              They're actually stretch bolts and should always be replaced as per OE manual. For a few bucks, it's better than the flywheel sheering through your firewall (has happened before!!!)

              Camshaft cap nuts are another one to add to the list, and people always seem to recycle these, despite the correct torque being so important!

              1976 Project Carbon Mk1 - Sold! | 2015 Lotus Exige Cup | F80 M3 Family Wheels

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              • #8
                as above dont mess with flywheel bolts. Theyre so cheap to replace

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                • #9
                  Bolts that are tensioned (i.e. not tensioned to make a gasket seal as in a head gasket) are normally tensioned to what is called the 0.2% proof stress. This is a torque that produces tension in the bolt such that when it is relieved, there is a 0.2% permanent increase in bolt length.

                  As such, it is always recommended to replace the bolts as to take it to the same tension value again will result in a little more strain and permanent elongation.

                  You can get away with using them again, however for the cost involved makes it not worth the risk.

                  On the flywheel however, you might want to check that the two have the same part number as the flywheel for an auto and manual can be quite different.
                  --

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                  • #10
                    Got plenty of new ones here Dan, ( both varieties ) just gimme a call when your around the hood'
                    Lots of MK 1 Scirocco's...

                    If it aint a MK 1 then it must be a donor car ??

                    Cheers,
                    Grant...

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                    • #11
                      Originally posted by Valver. View Post
                      They're actually stretch bolts and should always be replaced as per OE manual. For a few bucks, it's better than the flywheel sheering through your firewall (has happened before!!!)

                      Camshaft cap nuts are another one to add to the list, and people always seem to recycle these, despite the correct torque being so important!
                      I know some are stretch bolts, but I didnt think they all were..... I guess without knowing exactly its better to replace to be on the safe side.

                      I have replaced them and reused them aswell... I replaced on my mk3 but re-used on old 1.5D mk1's because I'm pretty sure pre- 1980 they (VAG) didnt do any stretch bolts.
                      Last edited by gldgti; 11-08-2011, 12:01 PM.
                      '07 Touareg V6 TDI with air suspension
                      '98 Mk3 Cabriolet 2.0 8V
                      '99 A4 Quattro 1.8T

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