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new-to-wings
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Posted: Sat Nov 15th, 2008 10:29 pm | 1st Post |
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Can front and rear rotors on my '83 1100 be turned? Like automotive rotors? are is there not enough material.
Thanks
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agnogel
Very Active Member
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Posted: Sat Nov 15th, 2008 10:35 pm | 2nd Post |
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| hi as far as i know the min thickness is 5mm you can download the manual on the link should give it to youhttp://goldwing.soylentgeek.com/newsite.asp
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rcmatt007
Senior Member
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Posted: Sat Nov 15th, 2008 11:20 pm | 3rd Post |
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| yes and no... you cannot.... cannot .... turn them like a car rotor.. but a machine shop can grand them as long as it is within specs... do a google, I thin there is a place that shows where you can send them off and have them done.... runs 40-50 clams
____________________
-Rodger-
all bikes in the most attractive colour: blue
"If you don't pursue your dream, you might as well be a vegetable"
'75 frame and parts project, '78 1000, '86 1200I, 05 HD-Road King
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new-to-wings
Member
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Posted: Sat Nov 15th, 2008 11:26 pm | 4th Post |
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| Thanks my man!
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mikef
Moderator
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Posted: Sat Nov 15th, 2008 11:33 pm | 5th Post |
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Looks like the site that may have been referenced.
http://www.oldbritts.com/14_061885.html
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Mike
93 Aspy
Do not place a sharp object in the hands of amateurs....
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Davogd430
Guru
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Posted: Sat Nov 15th, 2008 11:37 pm | 6th Post |
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| I think it's a waste of money. If they are worn or warped bad enough to need turned they probably won't turn out within minimum thickness tolerance. If they are just worn a little and above minimum in the thinnest place use them as is.
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Gone to the dark side and lovin' it. Maxxis 205/55 ZR16
David
usta haves:
64 150 dream 66 CL160 74 CL360
72 Suz TM400 74 Husky CR400
76 Suz RM250 77 Suz RM 370
82 Kaw 750 84 Kaw KDX 250 88 Kaw KX250
83 VT500 81 std 83Interstate
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rcmatt007
Senior Member
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Posted: Sat Nov 15th, 2008 11:40 pm | 7th Post |
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| I dissagree (repsectfully) had a rotor ground on my 78 about 15 years ago, and it still works, and had one done on my cx500.... the key is they have to be ground, if you turn them, they will go south,,,, and.... aboslutly, they have to be witin specs... it only takes a small amount of warp to FEEL like a lot
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-Rodger-
all bikes in the most attractive colour: blue
"If you don't pursue your dream, you might as well be a vegetable"
'75 frame and parts project, '78 1000, '86 1200I, 05 HD-Road King
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Davogd430
Guru
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Posted: Sat Nov 15th, 2008 11:50 pm | 8th Post |
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| I didn't mean it couldn't work Rodger, just it's unlikely since they don't have a lot of extra metal to work with.
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Gone to the dark side and lovin' it. Maxxis 205/55 ZR16
David
usta haves:
64 150 dream 66 CL160 74 CL360
72 Suz TM400 74 Husky CR400
76 Suz RM250 77 Suz RM 370
82 Kaw 750 84 Kaw KDX 250 88 Kaw KX250
83 VT500 81 std 83Interstate
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Foosman(5)
Very Active Member
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Posted: Sun Nov 16th, 2008 12:10 am | 9th Post |
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| Are our rotors actually cast? I thought the OEM and aftermarkets were a special alloy.
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Texas _Foosman
1988 GL1500
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Ghost Rider 2
Senior Member
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Posted: Sun Nov 16th, 2008 12:23 am | 10th Post |
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| I have had rotors ground in the past. They can be cut like a flywheel. They are milled flat. Have had it done and no problems with them. Just compare the price of cutting them to a new. If you can get a set done for 1/2 price or less I would go for it.
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1981 GL1100 Std with full vetter dailey driver
1996 GL1500 Aspy. weekend rider
2004 Honda Shadow Aero 750 wife (Better Half)
2004 Kawasaki Concours sport touring
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Davogd430
Guru
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Posted: Sun Nov 16th, 2008 12:34 am | 11th Post |
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Foosman(5) wrote: Are our rotors actually cast? I thought the OEM and aftermarkets were a special alloy.
They must be something besides cast iron (or steel), cast rotors on cars will rust overnight in high humidity and I haven't seen a rusty motorcycle rotor yet.
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Gone to the dark side and lovin' it. Maxxis 205/55 ZR16
David
usta haves:
64 150 dream 66 CL160 74 CL360
72 Suz TM400 74 Husky CR400
76 Suz RM250 77 Suz RM 370
82 Kaw 750 84 Kaw KDX 250 88 Kaw KX250
83 VT500 81 std 83Interstate
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keithg64
Very Active Member
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Posted: Sun Nov 16th, 2008 03:12 am | 12th Post |
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| I have had rotors groung before without any problem, I work in a machine shop with a Blanchard Grinder. Has anyone drill holes in rotors before?
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FenderHead
Senior Member
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Posted: Sun Nov 16th, 2008 03:25 am | 13th Post |
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keithg64 wrote: I have had rotors groung before without any problem, I work in a machine shop with a Blanchard Grinder. Has anyone drill holes in rotors before? Yes, I drilled the rotors on my '77 GL1000 right after I bought it new. They are of a very tuff material. I would be extremely surprised if the metal wasn't some alloy of forged stainless steel. I had to drill at very slow RPM. I would lose most effective braking if they got wet, until I drilled them...that fixed it for me. 
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fresnolarry
Member
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Posted: Sun Nov 16th, 2008 07:06 am | 14th Post |
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In Fresno, it is virtually impossible to find a machine shop that will turn motorcycle rotors , no matter what the specs are. just too much liability for insurance companies. ( I suppose)
I had to take a class and learn how to use a lathe and do it myself.
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FresnoLarry
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Rudy
Forum Ferret
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Posted: Sun Nov 16th, 2008 09:15 am | 15th Post |
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I have been successful in acquiring newish (no wear in) rotors on eBay at good prices (last one was $35). You have to wait and watch to get them at a good price.
At that price range, I prefer to change them rather than screw with them.
Since they wear out slowly, I just make rotors one of the things I check for when I make my scans through eBay. If I find a good candidate (seller included) I toss that item in the automated sniper system to see if I win it. If not, it's back to fishing for another candidate.Last edited on Sun Nov 16th, 2008 09:17 am by Rudy
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Rudy
'89 GL1500K 96k - http://goldwingtech.info
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JBz
Senior Member
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Posted: Sun Nov 16th, 2008 11:58 am | 16th Post |
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keithg64 wrote: I have had rotors groung before without any problem, I work in a machine shop with a Blanchard Grinder. Has anyone drill holes in rotors before?
Hi Keith. I drilled a set last week. The pictures are in the gallery. i used my super spacer. it wasnt too hard. I found piloting them with a #4 5/16 body machinist center drill first was easier than pushing the 1/4 inch drill thru them. I used a 12 pattern with 3 holes =36 holes in a running pattern. I had to go slower on the outer edge holes on the front where the rotor tends to flex as i had to chuck up on the center hole.. The rear was easier. jb
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2003 yamaha vstar 1100 classic 2004 honda rebel 250 {2}1983 aspencades + 83 Interstate 82 Aspencade 77 gl 1000 81 gl 1100 standard {2}1981 Interstates 78 gl1000
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