Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 09-04-11, 02:18 PM   #1
caunyd
Junior Member
Thread Starter
 
Join Date: Jul 2011
Bikes:
Posts: 20
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Disassembling Bike and Rusted Components

Hi guys, I bought a 2009 Trek FX 7.3 bike from Craigslist for $300. It's in working order, but cosmetically it needs work. There's some paint scratches and chips. And the tension wires/cables, screws, nuts, and bolts have rust on them.

I plan on repainting it, so obviously I need to disassemble it, but I am a complete bike rookie. I'm afraid of touching the gears, derailer, etc. Are there any detailed tutorials on how to disassemble a Trek bike?

Also, what do you guys recommend to treat the rust on the wires/cables, scews, nuts, and bolts, etc. Thanks.
caunyd is offline   Reply With Quote
Old 09-04-11, 02:26 PM   #2
AlphaDogg
I let the dogs out
 
AlphaDogg's Avatar
 
Join Date: Apr 2011
Location: Boulder, CO
Bikes: 2011 Fuji Roubaix 1.0, 2003 Ti Merlin Solis, & 1994 Raleigh MT200
Posts: 1,934
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You need to replace all of the rusted cabling and chain. There is some sort of acid that the C&Vers usually put on their old rusted stuff, someone else will have to chime in on what that's called.
AlphaDogg is offline   Reply With Quote
Old 09-04-11, 02:45 PM   #3
SlimRider
Banned
 
Join Date: May 2011
Location: Northern California
Bikes: Raleigh Grand Prix, Giant Innova, Nishiki Sebring, Trek 7.5FX
Posts: 5,804
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by caunyd View Post
Hi guys, I bought a 2009 Trek FX 7.3 bike from Craigslist for $300. It's in working order, but cosmetically it needs work. There's some paint scratches and chips. And the tension wires/cables, screws, nuts, and bolts have rust on them.

I plan on repainting it, so obviously I need to disassemble it, but I am a complete bike rookie. I'm afraid of touching the gears, derailer, etc. Are there any detailed tutorials on how to disassemble a Trek bike?

Also, what do you guys recommend to treat the rust on the wires/cables, scews, nuts, and bolts, etc. Thanks.
Hey there Caunyd!

Just relax about it. You're now here with people who can help you.


First of all, if your bike is that rusty, you're right to want to disassemble the bike for proper maintenance.
Sounds like you're going to need some liquid wrench or something to loosen things up, before you actually begin taking the bike apart.

Things you'll most definitely need:

(1) Screw Drivers

a. Phillips
b. Flathead

(2) Metric Wrenches # 8,9,10,12, 13, & maybe 15

(3) An Adjustable Wrench

(4) Cone Wrenches for your hubs

(5) Allen Wrenches 4, 5, & 6

(6) Cable Cutters

(7) Fourth Hand

(8) Chain Break Tool

(9) Tire Lever

(10) Camera

(11) Hammer ( Hopefully, you won't need this one)

(12) Patience

(13) Third Hand

(14) Pliers

Procedure:

Day 1

First, take close-up pictures on your derailleurs (both front and back), your brakes (both front and back), your chain arrangement (especially how its aligned with both the front and rear derailleurs). Also, take pictures of your headset and handlebar arrangement. You might want to take pictures of the rear hub area where your cassette is located. Of course, you should have already done that when you snapped pics on the chain. Spray liquid wrench on all really super rusty parts.

Day 2

Second, take the bike to the garage or some place where you can hang it up. Or rent a bike stand. Or just turn the bike upside down and rest it on its handlebars and seat.

If you can hang it up, make certain that you're working at eye-level or you're looking down on your work area. Tie rope up under the bicycle stem and the seat. Attach this rope to the above beam, hanging across the roof or ceiling.

To be continued...

Last edited by SlimRider; 09-05-11 at 05:51 AM.
SlimRider is offline   Reply With Quote
Old 09-04-11, 07:03 PM   #4
geo8rge
Senior Member
 
Join Date: Mar 2006
Bikes:
Posts: 2,013
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Post on mechanics board.

rust on the wires/cables, - Replace the cables and even the housings. Especially brakes as it is a safety issue, and fairly cheap. You will need some specialized clippers.

parktool.com
sheldonbrown.com
__________________
2000 Montague CX, I do not recommend it, but still ride it.
Strida 3, I recommend it for rides < 10mi wo steep hills.
2006 Rowbike 720 Sport, I recommend it as an exercise bike.
1996 Birdy, Recommend.
Wieleder CARiBIKE (folding), decent frame.
geo8rge is offline   Reply With Quote
Old 09-04-11, 10:43 PM   #5
Preynmantis 
Senior Member
 
Join Date: Jul 2011
Location: Southern Colorado
Bikes:
Posts: 163
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by AlphaDogg View Post
You need to replace all of the rusted cabling and chain.
+1

My favorite rust remover on other parts is 0000 steel wool and elbow grease.

There may not be good tutorials on the specific bike, but Google tutorials on specific parts and you'll do fine. Take it slow, use the correct tool and take pictures.
Preynmantis is offline   Reply With Quote
Old 09-05-11, 12:39 AM   #6
desertdork
just pokin' along
 
desertdork's Avatar
 
Join Date: Aug 2008
Location: the desert
Bikes:
Posts: 1,073
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Unless you have quite the setup and are a skilled painter, you might regret attempting a repaint. Home paint jobs tend to not only come out inferior to factory paint, they're also usually much more prone to chipping.
desertdork is offline   Reply With Quote
Old 09-05-11, 05:43 AM   #7
SlimRider
Banned
 
Join Date: May 2011
Location: Northern California
Bikes: Raleigh Grand Prix, Giant Innova, Nishiki Sebring, Trek 7.5FX
Posts: 5,804
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Day 3

Look at the chain on your bike. Look for a point where two links are closer together than the other links. If you don't see such a point, its ok. However, if you do, start there with your chain break tool. Now go to Google's "video search" and type in "bicycle chain removal". Look at this video three times. Now when you remove your chain, make certain that you don't push the pin all of the way out. Just push it out far enough to pull the chain apart. Now, place the removed chain in a metal bucket or ceramic bowl that contains some type of organic solvent (gasoline, mineral spirits, charcoal lighter fluid, lighter fluid, etc). After soaking your chain for a couple hours, take a tooth brush and brush clean. Now place the chain in clean solvent for a couple minutes, then hang it up to dry. After it's dry, run 3 in 1 oil over it before you reinstall your chain.

Now go to your wheels. Disengage any quick releases on your brakes (both front and rear). If you don't have quick releases, then use your wrenches to loosen your brakes. Make certain that you have enough clearance to remove your wheels. Now, remove your wheels. Fill both your tire with air to their recommended capacities. Now, if that was successful, press in your Schrader valve on your rim and release the air from your tire. Remove your tire from your rim (Go to youtube for this). Clean your rims. If your tires or rims need replacing, do it at this time. Now, place your tires back onto your rims (go to youtube for this).

For the remainder of your instruction, just go to video search and type in your task. There will be many videos available for your viewing pleasure. Alternatively, you could go to the Mechanics Board, as already suggested.

While there may or may not be specific videos on how to disassemble your bike in particular, there are videos on how to accomplish just about any basic mechanical task on any traditional triangular framed bicycle like your Trek.

Good Luck!

Last edited by SlimRider; 09-05-11 at 05:53 AM.
SlimRider is offline   Reply With Quote
Old 09-05-11, 06:33 AM   #8
wrk101
DRF aka Thrifty Bill
 
wrk101's Avatar
 
Join Date: Jan 2008
Location: The NC Mountains
Bikes: 86 Katakura Silk, 87 Prologue, 87 Cimarron, 14 frame school custom, 73 Paramount
Posts: 19,965
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by desertdork View Post
Unless you have quite the setup and are a skilled painter, you might regret attempting a repaint. Home paint jobs tend to not only come out inferior to factory paint, they're also usually much more prone to chipping.
+1 Rattle can paint = chips all the time. Trek is noted for world class paint jobs on their bikes.

Rusty consumables = replace them. I use oxalic acid to remove rust on fasteners and small parts, but you have to make sure to disassemble as it attacks aluminum. If you want to try oxalic acid, use search, as it has been thoroughly discussed a couple of thousand times.
wrk101 is offline   Reply With Quote
Old 09-05-11, 07:47 AM   #9
Oil_LOL
Green Tea Lemonade
 
Oil_LOL's Avatar
 
Join Date: Feb 2011
Location: Highland Park, NJ
Bikes:
Posts: 369
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by wrk101 View Post
Rattle can paint = chips all the time. Trek is noted for world class paint jobs on their bikes.
I have a friend with an FX 7.something, in this nice satin finish. Has held up well to years of abuse. The only way to get a bike nicely repainted without having prior experience would be to go to a framebuilder, or maybe an auto body shop. I looked into it when I was building my brother a mountain bike, but it was too expensive to be worth it. Just leave it as is, and get a new chain and cables (the bad paint will be a badge of honor, like buying a "reliced" guitar, but less stupid). Even if you don't end up repainting it, dissassemble it if you're comfortable. It's good to know how your bike works, and if you need to replace or repair anything in the future, it won't seem as scary.
Oil_LOL is offline   Reply With Quote
Old 09-05-11, 08:37 AM   #10
dedhed
SE Wis
 
dedhed's Avatar
 
Join Date: Apr 2005
Location: Milwaukee, WI
Bikes: '68 Raleigh Sprite, '02 Raleigh C500, '84 Raleigh Gran Prix, '91 Trek 400
Posts: 2,947
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
As said on mechanics - Don't bother repainting, you will never rattlecan it better than it was. New cables and chain.
dedhed is online now   Reply With Quote
Old 09-05-11, 12:30 PM   #11
icemonkey
Senior Member
 
Join Date: Apr 2011
Bikes: 86 Bianchi Cross bike, '83 Bianchi Campione D'Italia NR throughout - Brand new, a 1970 Schwinn Suberban
Posts: 59
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Oxalic acid on rust. Lots of penitrating oil (best from a car shop) and if something is really stuck penitrating oil and into a freezer - as the metal shrinks it gives the oil a chance to get in there. Do a search for rattle can painting - it can be quite good. Good luck
icemonkey is offline   Reply With Quote
Old 09-05-11, 12:32 PM   #12
icemonkey
Senior Member
 
Join Date: Apr 2011
Bikes: 86 Bianchi Cross bike, '83 Bianchi Campione D'Italia NR throughout - Brand new, a 1970 Schwinn Suberban
Posts: 59
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Oh and the Park Tool tutorials!!!!!!
icemonkey is offline   Reply With Quote
Old 09-06-11, 12:21 AM   #13
Mondoman
Senior Member
 
Join Date: Apr 2008
Location: A Latvian in Seattle
Bikes:
Posts: 1,020
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Nail polish comes in 29 billion colors, so you should be able to find a match to the frame's current paint job. Great for touch-ups, and the praise you'll receive for having your nails match your bike -- wear fingerless gloves!
Mondoman is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 12:20 AM.