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/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Sorry! Need Help........Again! /cgi-bin/YaBB.pl?num=1193545800 Message started by islandwahine on 10/27/07 at 21:30:00 |
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Title: Sorry! Need Help........Again! Post by islandwahine on 10/27/07 at 21:30:00 My little cone episode kinda freaked me out, and I started worrying about my rear brake. To tell you the truth it kinda felt like it locked up that day, not only that but it always squeaks when I apply the brake. So seeing as the muffler was off, and therefore probably easier to get to the rear tire, I decided to take it off. http://w3.bikepics.com/pics/2007%5C10%5C27%5Cbikepics-1069144-800.jpg I'm thinking about giving Clymer a piece of my mind though!! The manual said to be sure not to put rear tire on driven pulley, but put wheel on 2 pieces of wood. I carefully did so, just to have pulley fall off rear tire on my big toe! OUCH! Lucky though, did not damage pulley, cushioned fall with toe. Anyway, I need help with the brake shoe issue, they look fat enough, but it looks like they are rusted, and utterly pitted. http://w3.bikepics.com/pics/2007%5C10%5C27%5Cbikepics-1069146-800.jpg And this is the thickness, definitely more then 1.5 mm. http://w3.bikepics.com/pics/2007%5C10%5C27%5Cbikepics-1069145-800.jpg Also the manual says to check the rubber cushions. Do these still look good? http://w3.bikepics.com/pics/2007%5C10%5C27%5Cbikepics-1069147-800.jpg Rightclick and view image to see the photo larger. |
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Title: Re: Sorry! Need Help........Again! Post by Droopy on 10/27/07 at 21:55:57 looks like a little sandpaper is in order for the brake shoes and the drum just lightly to take the majority of the rust off. The rest of it looks fine. If It were me I would clean everything up and grease the the brake pivot shaft. |
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Title: Re: Sorry! Need Help........Again! Post by Jack_650 on 10/27/07 at 21:56:47 I just did my back breaks a couple weeks ago. I think there's no problem with the pully falling off when the wheel came off. Mine seemd to have a "relaxed fit" in there and came out on it's own as well. It was my first time with the bike and I got a little nervous too as there seems to never be anything easy about doing brakes on a car. I also have a little play in my rubber thangs too. I've got about 20k on my bike (9k by previous owner/s) but everything seems to be pulling just fine on the highway when riding. Unless I hear otherwise from this group I'm not going to worry. My rear brakes were squeaking at every use on the last 4k+ trip I did to Miami and back. I figured they were well past needing to be redone. Babied them all the way home, bought new ones and took off the back tire. They were the same thickness as the new ones and had the same sort of look as your old ones. I think I may not be adjusting the rears tight enough and not using them hard enough to get any thing other than this slight wear. I went ahead and changed them anyway. I'm thinking I'll take a little sand paper to the old ones when it's time to change again to rough them up a bit and give them a try in a year or two. Jack |
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Title: Re: Sorry! Need Help........Again! Post by azjay on 10/28/07 at 05:42:55 looks good to me, i wouldn't replace anything. sorry 'bout yer toe :'( clymer may assume closed toe safety shoes in a shop environment ??? |
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Title: Re: Sorry! Need Help........Again! Post by demin on 10/28/07 at 05:52:12 They look good to me,do what Droopy said,and you can take a file and file down the ends of the brake shoe material to more of an angle.also put some disc brake quiet(available at most autoparts stores)where the brake shoes touch mounting points. ;) |
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Title: Re: Sorry! Need Help........Again! Post by Savage_Greg on 10/28/07 at 06:27:25 First of all...Congrats on building your "Poor Woman's Bike Stand". Looks like it's working well for you ;D Secondly, with the issue of your locked rear brake, you may be looking for a problem that doesn't exist... Cleaning out all the brake dust is a good thing for maintenance but most likely your rear brake locked up because you applied it too hard and/or at the wrong moment. As they will explain in a MSF course, your rear brake is only 30-40% of your stopping power. That is not because your rear brake is underpowered when compared to the front brake. BUT that is WHY your rear brake is underpowered to begin with... The rear brake is very easy to lock...it is the nature of all bikes. Even new ones on the showroom floor will lock the rear brake very easily, and if you clean yours up and make it work even better it will lock even faster. Just remember that when you suddenly attempt to slow or stop that 60-70% of the bike's weight is applied to the front wheel. That reduces the contact force of the rear tire on the road and makes the applied braking force lock the tire. Just remember that not only is a locked tire useless for stopping, but it can also result is some of the worst kinds of spills. |
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Title: Re: Sorry! Need Help........Again! Post by islandwahine on 10/28/07 at 10:50:27 azjay wrote:
Yep I guess I should have thought of wearing shoes! Truthfully I'm always barefooted or in slippers; it's too hot to wear shoes here. The only time I actually wear shoes/boots, is on the bike. |
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Title: Re: Sorry! Need Help........Again! Post by islandwahine on 10/28/07 at 10:51:43 Droopy wrote:
Will do! Thanks! :) |
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Title: Re: Sorry! Need Help........Again! Post by islandwahine on 10/28/07 at 10:52:54 Instead of answering each and everyone, I'm just gonna say thanks to all. (being lazy today!) |
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Title: Re: Sorry! Need Help........Again! Post by islandwahine on 10/28/07 at 11:05:04 Savage_Greg wrote:
I love it! But truthfully, it's not a POOR womans bike stand. I probably could have purchased an ATV jack for the same price! I didn't have any of the materials, so I had to purchase them. 2' X 4' plywood board 3/4" = $20 2" X 4" Douglas fir 8 feet = $15 15 sturdy wood screws = $3.45 1 wood glue (I ran out) = $4.99 2 heavy duty hooks = $4.99 2 self locking straps = $25 Total including tax, about =$75 Welcome to Hawaii!! Luckily I already had a jack (recently bought) which was $40 at K-Mart. If I had been patient I could have waited for Sears to get me that $69 ATV jack, but then I would have had to wait 2-4 weeks. I also like your stand cause I can put it on it's side and stash it out of the way. That ATV jack is a little bulkier I think! |
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Title: Re: Sorry! Need Help........Again! Post by justin_o_guy2 on 10/28/07 at 15:31:44 I put grooves 4 or 5 across both rear brake shoes, deep enough to keep almost 1/2 of the brake shoe from engaging the drum. It did a LOT to stop the rear from locking up so easily. Now, I can use my brake without dragging the raer tire all over the place. Gotta taper the edges of the grooves, too. |
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Title: Re: Sorry! Need Help........Again! Post by Ed_L. on 10/28/07 at 16:38:49 Your brakes look great, just a light cleaning with some sand paper is all they need. When installing the rear wheel take a few ty-wraps or string and tie the rear brake assembly with the rubber cushion to the wheel. I ran some ty-wraps to the spokes, it keeps everything in place when you are lining everything up for the axle. Looking good so far ;D Oh yeah, don't forget to cut the ty-wraps off when done. |
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Title: Re: Sorry! Need Help........Again! Post by islandwahine on 10/28/07 at 16:49:14 Great suggestions! What grit sandpaper would be good? Also my ex suggested that I wear a mask when sanding the shoe down; he said that it probably has asbestos in it. |
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Title: : Sorry! Need Help........Again! Post by demin on 10/28/07 at 17:26:45 Medium grit,around 180 grit.Yes get a mask.Usually you can get them a Lowes or wherever.Couple bucks for a pack. ;) |
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Title: Re: Sorry! Need Help........Again! Post by gary_ona_savage on 10/28/07 at 22:54:50 I agree with Greg. The savage locks the rear break very easily. I have locked up my rear wheel about 3 times on emergency stops. You can't just "slam" on the rear break. You have to learn how much break you can give it on the back...and squeeze the life out of the front break because it will never lock up (at least on mine). |
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Title: Re: Sorry! Need Help........Again! Post by justin_o_guy2 on 10/28/07 at 23:23:18 Agree with whomever, but my rear brake is very workable & requires a pretty heavy foot to lock it up. It is the best rear drum I have ever used. If I am in a bit of a bind I NEED a rear brake I can lean on & get feedback from other than"It's not locked yet,, okay now it's locked" & the difference in pressure on the pedal between optimal stopping power from the rear wheel & locked up rear wheel being mere ounces. My ankle isnt that smart. The more needy I am of a really quick stop, the dumber it gets. |
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Title: Re: Sorry! Need Help........Again! Post by Savage_Rob on 10/29/07 at 05:48:34 I've found rear brakes lock pretty easily on pretty much any bike I've ridden. In less than optimal traction conditions, it's led to one pretty exciting low-side and several close calls. Learning to use the right ratio of front to back brakes is just something you get with experience. It also varies by bike and, as I mentioned, road conditions. |
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Title: Re: Sorry! Need Help........Again! Post by Kropatchek on 10/29/07 at 07:19:54 A remark about the rubber cushions: I renewed the rubber cushions and could not get the flanges of the pulley in without much effort. Had to apply a little soap to get them in. After I reinstalled the rearwheel and adjusting the belt there was no sideplay of the pulley and therfore no problem getting the belt in the middle of the pulley at the proper tension. Read in the German forum the that you can tighten-up the gap in the rubber cushions by gluing a piece of bicycle inner tyre to the outside of the rubber. Just my 2 bits. |
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Title: Re: Sorry! Need Help........Again! Post by Savage_Greg on 10/29/07 at 07:48:44 Kropatchek wrote:
Those are some pretty good ideas there...might want to save them in the Tech section. |
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Title: Re: Sorry! Need Help........Again! Post by Savage_Greg on 10/29/07 at 07:51:37 Savage_Rob wrote:
Yeah, that's what I meant. It can cascade on you too. The back end breaks loose and slides out, but then you release it and the tire grabs. Next thing ya know, it's going over in a "high side" and you really can get hurt. |
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Title: Re: Sorry! Need Help........Again! Post by islandwahine on 10/29/07 at 10:31:19 Am I going to need a tool to figure out the correct belt tension?? I don't have one. |
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Title: Re: Sorry! Need Help........Again! Post by SavageDude on 10/29/07 at 10:36:51 If you twist the belt and it went further than 45 degree, then it's too loose. You should have a cooper looking gadget in the original tool pouch. If not the above test as good as it get without tool ;) |
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Title: Re: Sorry! Need Help........Again! Post by Savage_Rob on 10/29/07 at 10:43:41 Yup, center of the belt on the lower portion. 90 degree twist with your fingers. It should require some effort to get close to 90 degrees but not go past 90. The brass tension tool works but the 90 degree twist is simpler, works well and requires you to carry one less tool. |
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Title: Re: Sorry! Need Help........Again! Post by justin_o_guy2 on 10/29/07 at 11:57:03 I have one O those special tools. After using the Twist method I never touch it. Interesting to note the hazards a locked rear wheel brings, but no oine seems to want to consider the mod to make the brake less sensitive & less likely to lock up, even afetr noting it locks very easily. Okay. I give. |
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Title: Re: Sorry! Need Help........Again! Post by Savage_Rob on 10/29/07 at 12:55:00 I just use a light foot. |
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Title: Re: Sorry! Need Help........Again! Post by gary_ona_savage on 10/29/07 at 14:50:37 Savage_Rob wrote:
I adjusted my brake pedal setting a little lower. |
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Title: Re: Sorry! Need Help........Again! Post by islandwahine on 10/29/07 at 18:23:58 Actually my rear brake does never worked all that well at all. I had to push it all the way down for it to even work! I also noticed that whoever installed the rear tire before, did not line up the brake lever with the lines on the drum. The little line on the lever was way past the lines on the drum (to the right of it). It might have had something to do with braking. |
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Title: Re: Sorry! Need Help........Again! Post by bill67 on 10/29/07 at 19:50:27 Did you try turning that little cam on the brake cable |
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Title: Re: Sorry! Need Help........Again! Post by islandwahine on 10/29/07 at 21:23:36 bill67 wrote:
When I put everything back together I'll follow Clymer's instructions on the how to. Haven't gotten time yet to sand the shoes down, to much work!! |
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Title: Re: Sorry! Need Help........Again! Post by Savage_Greg on 10/30/07 at 07:42:39 islandwahine wrote:
You may find that the "wear indicator" for the brake arm looks incorrect even if you have good shoes. Don't worry so much about that. Since you find the brake hard to push down, have you tried adjusting the brake pedal stop screw that is under the brake pedal (by the footpeg)? |
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Title: Re: Sorry! Need Help........Again! Post by islandwahine on 10/30/07 at 10:51:37 Savage_Greg wrote:
Actually the brrake pedal is really easy to punch down, it feels like I hit a bunch of nothing first, and only when the pedal is all the way down will it engage. Bake cable too loose?? |
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Title: Re: Sorry! Need Help........Again! Post by Savage_Greg on 10/30/07 at 13:10:51 islandwahine wrote:
Start by tightening up you brake cable at the wheel and see if it gets any better... Oh and anytime you change your brake cable adjustment, check to make sure your brake light still works too. |
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Title: Re: Sorry! Need Help........Again! Post by verslagen1 on 10/30/07 at 13:58:10 If the adjustment is that far off, you should concider removing the arm from the shaft and rotate it back further. Otherwise you'll run out of threads. ;D |
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