Author Topic: dual brake conversion updated (Read 13207 times)

crazypj · « **Reply #25 on:** July 16, 2008, 12:14:30 AM »

1977 CB550 F1, the rubber is between the inner drive ring and the outer locating ring, probably 2mm thick and 20+mm deep. The 750 is the same part.
Don't know if early ones are different but the 1974 360's I have look the same as late model (except for 4 bolt rotors instead of 6) I have one lying around somewhere, I'll see if I can dig it out this weekend
PJ

MCRider · « **Reply #26 on:** July 16, 2008, 04:34:41 AM »

Quote from: crazypj on July 16, 2008, 12:14:30 AM

1977 CB550 F1, the rubber is between the inner drive ring and the outer locating ring, probably 2mm thick and 20+mm deep. The 750 is the same part.
Don't know if early ones are different but the 1974 360's I have look the same as late model (except for 4 bolt rotors instead of 6) I have one lying around somewhere, I'll see if I can dig it out this weekend
PJ

Hmmmm, curious. Can't picture it, but if you've got it, well there it is.

In this 1977 CB550F schematic its not obvious. We're looking at part #8.
http://www.bikebandit.com/houseofmotorcycles/honda-motorcycle-cb550f-1977-front-wheel-disc/o/m9446sch404460

At first glance the schematic box may appear empty, one must scroll it down.

crazypj · « **Reply #27 on:** July 17, 2008, 10:37:21 AM »

Part number 8 is in reality 3 pieces. Inner drive ring, rubber bonding and outer drive collar. It isn't supposed to come apart but will if you get it hot enough, as I found out the hard way.
PJ

mystic_1 · « **Reply #28 on:** July 17, 2008, 10:53:17 AM »

I think that's only on later models, my K0 has a one-piece speedo drive plate with no rubber, but a later speedo drive I got with an Invader mag had the three-piece design.

mystic_1

MCRider · « **Reply #29 on:** July 17, 2008, 02:05:52 PM »

Quote from: mystic_1 on July 17, 2008, 10:53:17 AM

I think that's only on later models, my K0 has a one-piece speedo drive plate with no rubber, but a later speedo drive I got with an Invader mag had the three-piece design.

mystic_1

That makes more sense, its simply an updated part. Probably to make them fit the axle with less slop or buz or shock or some such. I've only seen the one piece jobs, metal only. Heat wouldn't hurt it, but probably not necessary.

When the machinist made the one I have posted above, I almost had him make some extras. But nooooo....

void909 · « **Reply #30 on:** July 17, 2008, 06:39:43 PM »

Sure wish you should have!!!

MCRider · « **Reply #31 on:** July 18, 2008, 05:58:29 AM »

Quote from: void909 on July 17, 2008, 06:39:43 PM

Sure wish you should have!!!

Once you get up the nerve to do it, you'll be fine.

I often spend about 4 times fretting over something than it takes to actually do it.

void909 · « **Reply #32 on:** July 18, 2008, 02:46:34 PM »

Im the same way... I wish my drilled rotors would hurry up and arrive so I can get this wheel together. Just as a side note, I went to the powder coaters today just to get a feel of his work and his prices. I took him some tach and speedo housing and the gauge bracket. He asked what they went to and when I told him they where off my cb750 he smiled. When we walked inside he pointed to a sweet little cb350 sitting in the corner. Its crazy to me how many of these vintage hondas are still on the road.

mystic_1 · « **Reply #33 on:** July 18, 2008, 04:39:04 PM »

Sounds to me like you couldn't have picked a better powdercoater to work with.

mystic_1

MCRider · « **Reply #34 on:** July 18, 2008, 07:04:21 PM »

Quote from: mystic_1 on July 18, 2008, 04:39:04 PM

Sounds to me like you couldn't have picked a better powdercoater to work with.

mystic_1

That's the truth! I read a post somewhere I think on this board that when you hire someone to work on your bike (it was relating to a machinist) you want someone who is excited about the job. I think one of the old hats here said it.

When I took my frame to a shop after many failed attempts to find someone to do the work, this guy said sure no problem. Though they had never done a job just like this they had done many sprint car chasis repairs and they were into it. When I pointed out how screwed up I had made the swingarm pivot he said heck we'll just cut them out (of the frame!) make new ones and weld them back in. I said you can do that? sounded like pure magic to me. He said yeah sure. They did and the tolerances are EXACT and the welds are beautiful. Next time I went to the shop 3 guys (out of

came up to me and said You're the guy with the CB750 frame? I know so and so ... and we talked like lost friends.

Wow!

void909 · « **Reply #35 on:** July 18, 2008, 07:39:04 PM »

Quote from: mystic_1 on July 18, 2008, 04:39:04 PM

Sounds to me like you couldn't have picked a better powdercoater to work with.

mystic_1

I agree. The guy was really cool and a honda lover. He also had an 89 Goldwing he was working on in the shop. I cave him a few pointers about polishing aluminum (that I learned here). I was going to not let him do the gauge bracket for cost reasons and I figured I would just paint it but after shooting the sh!t for a bit he threw that part in for free. Stand up guy. I just hope Its a good quality.

MCRider · « **Reply #36 on:** July 19, 2008, 08:20:36 AM »

Quote from: void909 on July 18, 2008, 07:39:04 PM

Quote from: mystic_1 on July 18, 2008, 04:39:04 PM
Sounds to me like you couldn't have picked a better powdercoater to work with.

mystic_1

SNIP
he threw that part in for free. Stand up guy. I just hope Its a good quality.

rangelov · « **Reply #37 on:** July 19, 2008, 12:45:59 PM »

I have an extra NOS old style speedo drive (Honda p/n 44641-300-000). I bought it from a Honda dealer in Baton Rouge (GN Gonzales) 2 years ago.

That said, I don't think it fits very well.

I re-engineered it and had a couple made out of stainless steel. See pictures at bottom.

void909 · « **Reply #38 on:** July 19, 2008, 04:03:48 PM »

holly sh!t ill take one!

mystic_1 · « **Reply #39 on:** July 19, 2008, 04:28:37 PM »

<drool>

mystic_1

cben750f0 · « **Reply #40 on:** July 19, 2008, 08:45:07 PM »

M8, im a metal machinist and thats gr8 work, well done... you gonna make alot of ppl happy...lol

peace

hymodyne · « **Reply #41 on:** July 20, 2008, 03:23:49 AM »

+1 on the quality of that work. you should produce a few, as the dual disc conversion is a common upgrade.

hym

rangelov · « **Reply #42 on:** July 20, 2008, 08:23:17 AM »

It was made on a CNC lathe and vertical mill from material that was purchased for another job. I'm an engineer for a major auto manufacturer. I had that done at work (about a year ago) in our plant's toolroom. I changed work location and the new plant's toolroom is also nice to me. I'm currently procuring a CNC lathe, 2-axis CNC Bridgeport vertical mill and Haas CNC mill for them. However, I won't (overly) abuse my privileges for "government jobs". This is a union shop and they have let me to use some of the equipment. That is in itself is very unusual. I think that it is partly that I'm getting them new "toys" and my sweet personality.

I'll ask around and get some quotes from some suppliers and friends that have the equipment. Those will have to be made from mild steel or aluminum. It is easier to machine, corrosion and wear really aren't issues.

void909 · « **Reply #43 on:** July 31, 2008, 01:40:20 AM »

Well boys I know its been a while but I finally got my rotors back from Anubis cycles. There customer service was great. They responded to emails next day in most cases. The rotors seem to be Identical in the drill pattern itself but what concerns me is that it looks as though the rotors have been scuffed up with some kind of sander or DA of sorts. Should I be concerned? I didn't ask for this service but if it will help then cool. The only other thing that bothers me is that when I received the rotors back they didn't pack anything with them to separate the two from clanking together or to protect them from bumps and dings in route. Matter of fact when I saw the package on my doorstep I thought to myself HOLLY F&CK this is going to be bad. I mean I know these rotors are tough but when I sent them in I made sure to wrap them up good and secure them in the package as to take the least bit of damage as possible. I don't know I just expected the same from a shop. Maybe I ask too much. Well MCrider1 I guess its time to warm up my bench grinder and see if I can Grind this thing into working. I still haven't found the hardware yet but I need to really start looking now. I will let you guys know how it goes down.
thanks
void

MCRider · « **Reply #44 on:** July 31, 2008, 05:26:08 AM »

Quote from: void909 on July 31, 2008, 01:40:20 AM

Well boys I know its been a while but I finally got my rotors back from Anubis cycles. There customer service was great. They responded to emails next day in most cases. The rotors seem to be Identical in the drill pattern itself but what concerns me is that it looks as though the rotors have been scuffed up with some kind of sander or DA of sorts. Should I be concerned? I didn't ask for this service but if it will help then cool. The only other thing that bothers me is that when I received the rotors back they didn't pack anything with them to separate the two from clanking together or to protect them from bumps and dings in route. Matter of fact when I saw the package on my doorstep I thought to myself HOLLY F&CK this is going to be bad. I mean I know these rotors are tough but when I sent them in I made sure to wrap them up good and secure them in the package as to take the least bit of damage as possible. I don't know I just expected the same from a shop. Maybe I ask too much. Well MCrider1 I guess its time to warm up my bench grinder and see if I can Grind this thing into working. I still haven't found the hardware yet but I need to really start looking now. I will let you guys know how it goes down.
thanks
void

Don't think the packing is a problem though for the sake of elegance, they should have given it an extra 2 minutes and put something between. 30 years ago I had mine thinned at a shop and they came back with machine tool marks, I wasn't too happy though they said that was the typical finish. I spent an hour or two on them with fine emory paper and they polished out to my satisfaction. Used them racing and 50,000+ street miles later. Always more brake than I knew how to use and pad wear was always fine.

Have at it!

cben750f0 · « **Reply #45 on:** July 31, 2008, 06:13:26 AM »

dont worry bout it... as long as there are no burrs, the pads are gonna bed in nice anyway.... just use the suckers...=)

peace

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Author Topic: dual brake conversion updated (Read 13207 times)