Con
Peugeot says you can reuse the TTY bolts up to five times. The
recommended tightening procedure should not deform the bolts
plastically. They should return to their normal length upon
removal. Of course they should be checked to be sure, and any that
are too long discarded. They are now obscenely expensive if bought
separately from Peugeot, not so bad if bought as a set with the head gasket.
Brian Holm
At 07:43 AM 4/17/2006, con wrote:
>I'll try to remember basic metallurgy.
>
>"Torque to yield" bolts (if torqued to specification) cannot be reused
>because they have been stretched beyond their "elastic" region, into what's
>called "plastic" region: Elastic means that they return to their original
>length. Once stretched into the "plastic" region they stay elongated and
>hence new bolts are required.
>
>Con,,,,
>
>
Brian Holm, Parts for Peugeots
at Peugeot Holm, since 1969
2120 Maple Hill
Plainfield, VT, 05667
802-454-7132, fax -1310
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Received on Mon Apr 17 09:21:51 2006
