Colin Armstrong Posted June 20, 2021 Share Posted June 20, 2021 I am changing the head gasket of my Triumph Herald 1360. Do I need new head bolts or is it OK to use the existing ones? Thanks for any help Quote Link to comment Share on other sites More sharing options...
RobPearce Posted June 20, 2021 Share Posted June 20, 2021 The head studs on the Triumph SC engine are generally reusable but you should check for condition of the threads. Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted June 20, 2021 Share Posted June 20, 2021 Too add….. the studs are generally fine, the OE ones are very good quality. However, the nuts, not so much. As the torque, 48lb/ft iirc, is pretty much the top end for a 3/8” UNF fastener, the nuts are prone to stripping and the typical replacements struggle to hold at all. You also need to be aware that the washers are hardened and should only be replaced like-for-like. The best solution I know of is to buy a set of flanged nut intended for the A-series engines from MiniSpares. These hold the torque reliably and don’t need washers. Nick Quote Link to comment Share on other sites More sharing options...
flying_fox Posted June 20, 2021 Share Posted June 20, 2021 Hello as the i assume the head is off - a good move is to clear the water route that is a very difficult angled drilled route to find about a 40- 45 angle lower end being bottom right good - this on the vittese i had cheers Gerald Quote Link to comment Share on other sites More sharing options...
Colin Armstrong Posted July 20, 2021 Author Share Posted July 20, 2021 Thanks I'll do that Quote Link to comment Share on other sites More sharing options...
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