| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 2616.1 | clamp it or retap | DNEAST::FIKE_MIKE | | Mon Jul 26 1993 13:48 | 13 |
|
I'm not familiar with Puegout, but I do know that you can buy an
external clamp (with bolt and nut or quickrelease) to go around the
seatpost. Assuming that your seatpost has somewhat of a slit cut into
the back so it can be compressed (although I'd imagine you could cut
one with a dremel or hacksaw) by the clamp and assuming that you can
get the clamp to fit your size seattube. Regardless, if it's steel, I
can't see any problem with retapping it one size larger and putting a
new hex head bolt in it. It shouldn't hurt it if it's done correctly (
lots of cutting oil so you don't get the metal too hot). I've seen the
clamps in a Mountain Bike Action ad and also in the Loose Screws
catalog, I think.
|
| 2616.2 | | EST::BOURDESS | | Mon Jul 26 1993 15:04 | 11 |
| Well, about the seat clamp, it can't be done. There isn't enough metal
above the top tube; the frame just doesn't go any higher than the top
tube. About the re-tapping, thats what I was thinking about doing.
I'm just not too familiar with chrome molly, and don't want to crack or
in some other way ruin the frame.
Thanx for the suggestion about cutting oil; what is it and where should
I get some?
I can just picture re-tapping it and seeing a hairline crack running
all the way through the tubiing.
|
| 2616.3 | try motor oil..... | SOLVIT::MEREDITH | another hill? ugh | Mon Jul 26 1993 23:38 | 18 |
| Chrome moly is reasonably soft steel and will retap without
fracturing. The hole should be redrilled to the proper size for the
tap.(each tap comes with a specific drill size for best results)
As far as cutting oil for this operation, motor oil works well.
(or go to a tool and die maker, they probably give you the 5cc's you
need). If you don't like the result (I don't like the sound of it = not
enough metal) you can always drill and tap into the seat post. There's a
lot more material to produce threads. To gain adjustability, you could
get fancy and "slot" the Steel tube.
And if you really blow it, you can always send the hole all the way
the seat tube and seat post and use a nut on the other side. There
are many ways to assure attachment, retapping is only the first
approach.
Good luck,
Paul
|
| 2616.4 | | EST::BOURDESS | | Tue Jul 27 1993 10:06 | 3 |
| thanx for the info. I think I'll be trying to re-tap it tonight.
Mike
|
| 2616.5 | | NOVA::FISHER | US Patent 5225833 | Wed Jul 28 1993 09:03 | 8 |
| then there's teh solution which is found on Trek's 5x00 series. The
clamp is on the seat post and just prevents it from going deeper
into the seat tube.
If someone says "wow, that's grody" Just tell them that it's the
solution used on many of the best frames made. :-)
ed
|