EXUP woes..

[slappy]

If you want to buy a centre punch try an engineering supply shop,you need a very good quality one to smash out broken taps in holes, I know from the number of times i have had to do it at work over the years.
Wear safety glasses when smashing the tap as you definitely do not want a piece of it in your eye!

[DOJOD]

Hi,
A good machine shop should have a spark erroder.
This actually disintegrates broken taps and the like without damaging the surrounding metal.
Might be worth ringing round.

DaveO

[b1k3rdude]

http://www.halfords.com/webapp/wcs/store...yId_165469

Or should I get something solid? There's a 4 piece set at hellfrauds too. B&Q don't seem to have anything suitable.

This wont work for what you want to do, its a self sprung center-punch, you need a solid one with a hardened tip.

[blade023]

Thanks for all the suggestions folks. I went to take the downpipes off earlier, hoping I wouldn't have to take the rad off (which I didn't), and thinking I'd have one last go at getting the tap out with what I had before taking it into an engineer. Having the offending hole (*cough*) facing up and easily accessible (oo er) made it a lot easier. I managed to drill and break up the tap, and finally got the right sized hole redrilled. Then I threaded it (very carefully) with another tap, and it's now fixed!

Lesson learned? Be very careful using cheap taps. It's a set I got from B&Q for very little, and I think in future I'll be getting better quality taps from a specialist when I need to thread holes. Not worth the hassle using cheapo acme tools.

[jools]

glad that you are all sorted, you just need to clean, lube and refit.
Any photos!!!

[Falcon 269]

Job well done in the end.  Glad you got out of jail without too much hassle.

Bet you service it regularly from now on ...

[blade023]

Indeed. Seems like the best option is to service it every couple of months, just like the manual says  :rolleyes . I haven't got any pictures I'm afraid, as I was in "trying to get the ruddy thing sorted" mode instead of "oo this is interesting" mode. I could take some pictures next time I do it though. Are there any guides on here about servicing the exup? If not I could do a quick write up. I've seen a couple of pictures pointing out which bolts and which.

On a more interesting note and speaking of photos and stuff, I've been working on an arduino project recently. Digital dash with LED shift lights and speed readout with gear indicator. If anyone's interested in that there's a thread about it over at BCF.

http://www.bikechatforums.com/viewtopic....0161dffc0e

[Falcon 269]

EXUP and a host of other things covered here:  http://www.cartestsoftware.com/fz1/

[b1k3rdude]

On a more interesting note and speaking of photos and stuff, I've been working on an arduino project recently. Digital dash with LED shift lights and speed readout with gear indicator. If anyone's interested in that there's a thread about it over at BCF.

Very cool.

[blade023]

Thanks. I'm in the middle of a code rewrite at the moment, so there's nothing else demonstratable yet. In fact, I started the rewrite shortly before I went to sort out the exup then all that went pete tong and so the arduino project has stalled. I've a few days off next week though, so hoping more progress will be made.

[b1k3rdude]

look forward to the pictures :-)

[red98]

"acme tools" bought a few of them in my time and learnt the hard way.......always buy quality now.well worth the extra