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General Category >> Rubber Side Down! >> front pulley
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Message started by reeko on 03/22/05 at 00:08:08

Title: front pulley
Post by reeko on 03/22/05 at 00:08:08

I would like to take off the pront pulley because it starts to be rusty, so I want to put new paint on it.
But I can't screw it off. ???
I tried to do it like clymer says: step on rear wheel brake and screw it off.. but it was so hard so I couldn't move it a bit..
Do you have any tip, idea how to put it off?
Thanks..

Title: Re: front pulley
Post by WD on 03/22/05 at 00:14:07

Put a 4 foot piece of pipe over the ratchet handle. If I remember correctly, righty-tighty lefty-loosey does not apply to that nut. When mine got crusty, I just sanded the edge and brush painted the center...
-WD

Title: Re: front pulley
Post by reeko on 03/22/05 at 00:23:18

the main problem is that how to hold it to not move when you want to unscrew it..

Title: Re: front pulley
Post by WD on 03/22/05 at 00:54:09

Place the front tire against the wall of the garage, house if you don't have a garage. Put the bike in first. Have someone sit on the bike and really step down on the rear brake lever. You break the nut loose. It is not really a one man job. That nut gets on there so tight that if you don't have an air impact wrench, it is almost impossible to take off.
-WD

Title: Re: front pulley
Post by Kropatchek on 03/22/05 at 03:01:35

WD wrote:

That's the trick . The air impact wrenche allways work. Do NOT forget to flatten the washer behind the nut.

Goodluck
Kropatchek ;D

Title: Re: front pulley
Post by Paladin on 03/22/05 at 06:19:15

My medium duty 3/8" air impact wrench didn't budge the front wheel of Project66Bug. Ended up using leverage:
http://www.project66bug.com/images/leverage.jpg
(for the actual breaking of the bolts we had to have Wendy sitting on the car right over the tire to stop it from slipping.)

The most leverage I ever used was on an antenna mast. Had used two sections of 1.5" iron pipe coupled together. One bent in a wind storm. To unbolt my uncle and I used a pair of pipe wrenches with ten foot pipes over the handles. (over a thousand foot-pounds of torque.)

Title: Re: front pulley
Post by bentwheel on 03/22/05 at 08:33:42

The nut has normal threads, meaning turn it left to remove. I will also repeat what Kropatchek said and make sure you bend back the locking washer from the nut.

Title: Re: front pulley
Post by reeko on 03/23/05 at 03:33:46

I don't have an air impact wrench.. :-/
Do you usually have an air impact wrench at home?? ;)

Title: Re: front pulley
Post by slavy on 03/23/05 at 09:12:57

Yes, if You intend to work on Your bike on a regular bases and if You have where to keep it, the first thing I'd recommend is a good compressor / that has oil in/ and after that some decent impact gun / ingersol rand or a craftsman copi of IR2121 or IR2112/ You will never be sorry. Latter You will want some more air tools.

Title: Re: front pulley
Post by Ed_L. on 03/23/05 at 10:40:50

Take a breaker bar with the right size socket on it, a long piece of pipe and a big hammer. Slip the pipe over the handle of the breaker bar. Lean hard on the cheater pipe and then whoop on it with the big hammer. Has always worked for me, just wear gloves and eye protection.

Title: Re: front pulley
Post by Greg_650 on 03/24/05 at 05:38:20

I believe the socket size is 32 MM. There is also a lock washer tab to bend down and the nut turns off in a counter-clockwise direction.

The nut shouldn't be tightened that tight in the first place which is the reason for the lock washer....it won't normally come loose as the direction the shaft turns under power is the same direction that the nut is removed.

I don't know if it will work, but I've used a piece of wood to block other gears and sprockets. Try a piece about 1/2" thick in between the belt and the sprocket.

Title: Re: front pulley
Post by WD on 03/24/05 at 05:47:29

Um, isn't the front pulley aluminum like the rear pulley? I think it is, been a couple years since I popped the pulley guard off...

Make sure the nut, washer and output shaft are clean. Minor surface rust on the nut and washer is no big deal, lightly sand them clean and put a thin layer of petroleum jelly on them to slow down the rust.
-WD

Title: Re: front pulley
Post by Paladin on 03/24/05 at 11:02:01

reeko wrote:

I don't have an air impact wrench.. :-/
Do you usually have an air impact wrench at home?? ;)

Powered tools are handy. Battery powered require the added weight of a battery. Electric tools require the weight of the electric motor. Air tools put the weight of the motor with the compressor and are far smaller and lighter for the same or greater power.

As is often the case, you get what you pay for. Wife got me a boxed set of air tools that included an inpact wrench. The cost of the kit was less than the cost of a good impact wrench. The impact wrench has less than half the torque of the expensive one. Impact wrench is cool -- an 8-year-old can remove nuts that you would be grunting over using a wrench and an extention handle.

Working on and around the house I use a air-powered palm nailer.