Thumper Club Forum
Technical => Project Progress => Topic started by: timbo on March 25, 2016, 07:23:03 PM
-
Well, id tried everything else i could think of :-\ And this actually worked :)
Id bought three Smiths speedos from an add in RC, and all three turned out to have problems. One, a brand new 80mph one, had seized up completely, probably due to never being used. All three now working due to WD40 and carefull manipulation.
-
What you can`t see in the picture is the 3ft bar on your stilli`s for extra leverage ;D Great job, finger looks nasty :(
-
Funny thing is, I was given that large stilson years ago, and have never found any use for it. Yes, Alison and the three large dogs are hanging off the end of a six foot length of s scaffold pole ???
-
Have a look at Dennis Quinlan's web site. Dennis is an Aussie Velo enthusiast and spent his working life fettling chronometrics.
http://velobanjogent.blogspot.co.uk/2011/12/removal-of-smiths-chronometric-speedo.html
One of his tips, which I used successfully, was to heat up the bezel till you can see the O ring melting and bubbling. It will then easily screw off. It's also better to hold the body with a specially made jig locating on the mounting studs rather than holding the body in the vice.
I too have a pair of Stillsons like that but they're generally reserved for the Discovery......
-
Eh up Tim , that finger in the photo looks like it was meant to be inserted in to one of those throbbing things that were mentioned in an earlier post ;) ;) 8) 8)....hopefully on the road to recovery?
-
A mere flesh wound Michael, I'm embarrassed to even mention it, in respect of your own injuries. Plus it was pure laziness and stupidity what caused it :-\
Thanks for the advice Ian. That's what any sensible person would do, but I was on a role and slightly manic at the time. It worked anyway. Will check out the link, thanks for posting.
-
Just read the link. I had already tried two different strap wrenches, a chain wrench, and a pair of water pump pliers. I certainly wasn't going to apply a blow torch to a speedo that was in near mint condition ;)
-
But surely applying the stillsons hasn't done the bezel any favours?
When I did it nothing was damaged at all (other than the O ring). I used one of those cheap pencil type gas torches.
-
There's a couple of minor marks, and i applied very little pressure, so its ok. What could possibly go wrong ;)
-
Crackin job, they look great .... I love these old clocks, I think they`re a work of art in themselves 8)
-
Aye, just need to test them on my mates 350 Matchless, then one of the 120mph ones will go onto a G9 Matchless twin, and the others sold on. Well, that's the plan ;)
-
Did you have any bits left over? :o
-
I would have, I'm sure, if I'd stripped them. They look well fiddly :-\
No, I only unscrewed bezels, and removed inner complete from case. Working on the KISS principle ;)
-
They're fascinating things to work on but as you say fiddly. The trip wasn't working on one I stripped and when I foolishly took it apart bits went everywhere. Eventually I worked out how it was supposed to work (devilishly complicated) and got it back together but I wouldn't want to do it again. My fingers are too big & clumsy not to mention ageing eyes.....