What I wouldn't give for a 1939 BSA M20 On Mon, Sep 13, 2010 at 5:41 AM, Joji & Sini Kurian < joji_kurian1...@yahoo.co.uk> wrote:
> Hello Group, > > On the same thread. > > While restoring my BSA M20 - 1939, I tapped and changed all the fasteners > from British Standards to Metric. > > Was it a pain? sure was while attempting the same. > > Am I happy now? sure am, any missing fastener is only a trip away to the > hardware store. > > Reg, > > BB > ------------------------------ > *From:* stanley/ Randolph <tinkrm...@yahoo.com> > *To:* nighthawk_lovers@googlegroups.com > *Sent:* Sun, 12 September, 2010 1:04:07 > *Subject:* Re: [Nighthawk Lovers] Re: 1995 Honda Nighthawk CB 750 > > Have you thought of using a helicoil instead of making it a larger, and > possibly SAE, instead of the original metric? > BTW: > You can get a chart (or copy of one) at most machine shops because they are > always dealing with conversions when it comes to repairing bolt holes. > Because the case of a Beetle engine is made of relatively soft magnesium > alloy (shavings actually spark and burn, and the case may burn in a bad gas > fire by the engine), pulled studs are a common problem. It's not that > difficult to drill, tap, and insert a helicoil, and go back with the > original bolt, stud, etc. > Now, in the case of 250 exhaust studs, which are 7mm and rare except maybe > at the stealership, I went with an 8mm instead, since there seems to > be a problem with studs breaking off on a 250 anyway. I can aquire the 8mm > at the local fastener shop. And yes, I could use something in between 7mm > and 8mm in SAE, but it may be confusing to the next owner, so I just as > soon choose 8mm instead. > 7mm = .27559 in.; 8mm = .31496 in. If I wanted to use SAE, 5/16in as a > decimal is .3125, or just a little smaller than 8mm. > There are charts for all sizes of drills in inches, and I am sure you can > determine the size hole you need for a specific tap, be it metric or SAE... > > Stanley <http://www.youtube.com/watch?v=KXUssG6_Ecc> > > > ------------------------------ > *From:* Stumpi <sandisc...@gmail.com> > *To:* Nighthawk Motorcycle Lovers! <nighthawk_lovers@googlegroups.com> > *Sent:* Sat, September 11, 2010 9:57:47 AM > *Subject:* [Nighthawk Lovers] Re: 1995 Honda Nighthawk CB 750 > > Jeese Kurt, I broke a valve cover bolt off in the cam cap the other > day and had to make new ones in a larger size. Machining in metric > made my head hurt. I'll post pictures once I dump my camera again. > > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To post to this group, send email to nighthawk_lov...@googlegroups.com. > To unsubscribe from this group, send email to nighthawk_lovers+ > unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/nighthawk_lovers?hl=en. > > > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To post to this group, send email to nighthawk_lov...@googlegroups.com. > To unsubscribe from this group, send email to > nighthawk_lovers+unsubscr...@googlegroups.com<nighthawk_lovers%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/nighthawk_lovers?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To post to this group, send email to nighthawk_lov...@googlegroups.com. > To unsubscribe from this group, send email to > nighthawk_lovers+unsubscr...@googlegroups.com<nighthawk_lovers%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/nighthawk_lovers?hl=en. > -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to nighthawk_lov...@googlegroups.com. To unsubscribe from this group, send email to nighthawk_lovers+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en.
