martingraham 21 Posted June 29, 2015 Report Share Posted June 29, 2015 Hi all. I'm needing to clean out my head stud holes in my cylinder block and looking for an M12 tap to use. With There being so many types I'm not sure which one I need, I know it will be an M12, but then what pitch is needed? 1.0,1.25, 1.5, 1.75 pitch. Also what type of tap would I use?Amy links would be great. Many thanks. Link to post Share on other sites
leon263 31 Posted June 30, 2015 Report Share Posted June 30, 2015 (edited) You do not mention what engine your car has but VagCat shows that Mk 3 cylinder head bolts are actually M11 x 1.5 x 96 with a socket type head............ does this sound right, are you sure about the M12 bit? Taps come in two types, taper and plug. As the name suggests, a taper tap is tapered and will not clean threads right to the bottom of a hole so a plug tap would probably be a better bet. Both types are readily available on e-bay, just do a search for M11 x 1.5 taps. Link below for cylinder head bolts ............ M11 x 1.5 x 96 http://www.ebay.co.uk/itm/VW-GOLF-MK1-MK2-MK3-CADDY-SCIROCCO-CYLINDER-HEAD-BOLT-SET-050103384S-A458-/191133016196 Edited June 30, 2015 by leon263 Link to post Share on other sites
martingraham 21 Posted June 30, 2015 Author Report Share Posted June 30, 2015 Hi, sorry for the lack of details. Its an obd2 2.8 vr6. I only assumed it will be m12 because I used an M12 spline socket to get them out. Link to post Share on other sites
leon263 31 Posted June 30, 2015 Report Share Posted June 30, 2015 (edited) Yeah, just checked VagCat. 20 bolts required for the VR6, all M11 x 1.5 but there are three different lengths included in the set ............ 85, 119 and 144mm Link below, http://www.ebay.co.uk/itm/Bolt-Kit-Cylinder-Head-02082-Febi-VW-Ford-Seat-/331583784567?pt=LH_DefaultDomain_3&fits=Model%3AGolf%7CCars+Type%3A2.8+VR6&hash=item4d33ef0677 Edited June 30, 2015 by leon263 Link to post Share on other sites
martingraham 21 Posted July 1, 2015 Author Report Share Posted July 1, 2015 Cheers. That's a great help. Link to post Share on other sites
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