brake disk info needed
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Cruiser
Joined: Jul 2007
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brake disk info needed
I am replacing the 40 spoke wheels on my 2001 Road King with 9 spoke cast wheels which I purchased via this forum. Although the T40 Torx screws were very difficult to remove from the front wheel, I am not having much success removing the T45 Torx screws from the rear wheel. In fact, I broke my new T45 torx socket trying to get the screws out, but I will persist and eventually get all out. No problem with the bolts securing the belt sproket to the wheel. My question is should I use a thread locker when I attach the belt sproket and brake disks to the wheels? When I removed the original, I did not see any evidence of thread locker, but they were a bear to remove. I read through the official factory service manual and did not read anything about using thread locker, which i usually use on just about everything I put on my Harley. And, if I should use it, should I use the red or the blue. My next question is should I consider replacing the brake discs. I only have 24,000 miles on the bike and the disks appear to have a lot of mileage left on them, but while I have everything apart, etc..
Thanks for your replys and I get a lot of great information off this forum. Halfbreed
Thanks for your replys and I get a lot of great information off this forum. Halfbreed
Extreme HDF Member
Joined: Sep 2006
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Likes: 29
Use a little heat from a propane torch and those bolts will come right out....The heat will melt the locktite.
The factory bolts have pre-applied Loctite. That is why the manual says to replace them. I always just brush the threads and put them back on torqued to spec with blue Loctite applied.
24k miles isn't too many miles on your rotors. You can use a dial indicator to measure them if you are curious. The minimum thickness is written on each one.
The factory bolts have pre-applied Loctite. That is why the manual says to replace them. I always just brush the threads and put them back on torqued to spec with blue Loctite applied.
24k miles isn't too many miles on your rotors. You can use a dial indicator to measure them if you are curious. The minimum thickness is written on each one.
Grand HDF Member
Joined: Dec 2007
Posts: 4,999
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From: Bay Area
Been there done that! What I found to get them off is use a good torx bit preferably the kind that are 3/8" drive and are forged in one piece (Vermont American). You may get by with a socket type with replaceable bits, but I found the first kind not to break.
Secondly and very important use a long breaker bar or ratchet, I used a 30" bbar and they come off like butter.
Throw all your old bolts away, including the pulley bolts. They are a one time use only. I used red locktite on the pully and blue on the rotor, but I think the book calls for red on both. At 24k your rotors are still good, but you should mic them to be sure.
Secondly and very important use a long breaker bar or ratchet, I used a 30" bbar and they come off like butter.
Throw all your old bolts away, including the pulley bolts. They are a one time use only. I used red locktite on the pully and blue on the rotor, but I think the book calls for red on both. At 24k your rotors are still good, but you should mic them to be sure.
Extreme HDF Member
Joined: Apr 2006
Posts: 10,449
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From: Roswell, GA
Halfbreed, what Service Manual are you reading? I ask because my 2004 HD SM says to re-use the five sprocket bolts, apply two drops of red Loctite to each, and torque to 55-65 ft-lbs.
As for the brake discs, my manual says to use new screws "after three use cycles." A couple of drops of blue loctite won't hurt anything, but isn'at mentioned in my manual.
The brake discs/rotors have a minimum thickness engraved/embossed in them near the hub. Mic them to be certain you're okay; 24K you sould be but may vary based on your braking and riding style.
Good luck with your project.
Edit: Halfbreed, misread your OP and see you have a 2001 RK and edited my post accordingly.
As for the brake discs, my manual says to use new screws "after three use cycles." A couple of drops of blue loctite won't hurt anything, but isn'at mentioned in my manual.
The brake discs/rotors have a minimum thickness engraved/embossed in them near the hub. Mic them to be certain you're okay; 24K you sould be but may vary based on your braking and riding style.
Good luck with your project.
Edit: Halfbreed, misread your OP and see you have a 2001 RK and edited my post accordingly.
Last edited by Harleypingman; Apr 27, 2009 at 10:04 AM.
Grand HDF Member
Joined: Dec 2007
Posts: 4,999
Likes: 55
From: Bay Area
Halfbreed, what year and model bike do you have, and what Service Manual are you reading? I ask because my 2004 HD SM says to re-use the five sprocket bolts, apply two drops of red Loctite to each, and torque to 55-65 ft-lbs.
As for the brake discs, my manual says to use new screws "after three use cycles." A couple of drops of blue loctite won't hurt anything, but isn'at mentioned in my manual.
The brake discs/rotors have a minimum thickness engraved/embossed in them near the hub. Mic them to be certain you're okay; 24K you sould be but may vary based on your braking and riding style.
Good luck with your project.
As for the brake discs, my manual says to use new screws "after three use cycles." A couple of drops of blue loctite won't hurt anything, but isn'at mentioned in my manual.
The brake discs/rotors have a minimum thickness engraved/embossed in them near the hub. Mic them to be certain you're okay; 24K you sould be but may vary based on your braking and riding style.
Good luck with your project.
Thread Starter
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Cruiser
Joined: Jul 2007
Posts: 231
Likes: 3
Thanks for your replies. I did go back to my service manual and flound the information I needed. I guess I just missed it the first time. I have also measured the thickness of the disks and they are within the suggested measurements. I will use a propane torch to heat the remaining screws for removal. I appreciate your time and information. Halfbreed
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