Brake drums held on only by lug nuts!
#1
Brake drums held on only by lug nuts!
To my surprise, each (rear) brake drum was loose and probably able to slide off, once the tire was removed (and the parking brake was released). There was no little screw holding it on, like there was for the front hub. I say little screw, singular, because although each front hub had 2 screw holes, only one hole had a screw in it. The only thing holding each brake drum from sliding off the stub axle was the wheel and tire assembly, and the lug nuts holding the wheel and tire assembly. Since the rear studs go through a hole in the drums, and through a hole in the wheel, the lug nuts were able to hold the drum on, as well as hold the wheel on. In contrast, on each front hub, the studs were screwed into the hub.
Interesting.
There were 2 little holes in each drum that were threaded, each of which you could thread a screw into, and I suspect you could then use the screws to push against a backing plate, in order to help pull the drum off – no drum puller or gear puller needed. However my drums were loose and I think they could have come off without using screws, simply by pulling with hands.
I was away from home, and only had a few tools with me – enough to rotate my tires – so I didn't want to pull the brake drums off to see how easily they came off and see what was behind them. I didn't know what to expect about pulling them off and putting them back on and didn't want to find out when I was so far away from home without all my tools.
Interesting.
There were 2 little holes in each drum that were threaded, each of which you could thread a screw into, and I suspect you could then use the screws to push against a backing plate, in order to help pull the drum off – no drum puller or gear puller needed. However my drums were loose and I think they could have come off without using screws, simply by pulling with hands.
I was away from home, and only had a few tools with me – enough to rotate my tires – so I didn't want to pull the brake drums off to see how easily they came off and see what was behind them. I didn't know what to expect about pulling them off and putting them back on and didn't want to find out when I was so far away from home without all my tools.
Last edited by nomenclator; 02-28-2018 at 11:34 AM.
#2
That is the same as the drum brakes on my trailers, my neighbors Chevy truck, and Fox body Mustangs.
Those are the only drum brakes I have experience with, but all are only held in place with the lug nuts.
Were you expecting something different? Do you see any reason for it to be something different?
Honda is unique in that it has those retaining screws for the rotors. ALL other cars I've owned do not have any form of retaining screw for the rotors either.
Those are the only drum brakes I have experience with, but all are only held in place with the lug nuts.
Were you expecting something different? Do you see any reason for it to be something different?
Honda is unique in that it has those retaining screws for the rotors. ALL other cars I've owned do not have any form of retaining screw for the rotors either.
#3
As I understand it, the retaining screw is really just for the assembly line, and it becomes an absolute HELL of a time to get everything off after a few thousand miles of crud working on little screws.
Some people I know swear that the next new honda they get, they will take off each wheel and remove the screw first thing to save a bad time during a brake job later
Some people I know swear that the next new honda they get, they will take off each wheel and remove the screw first thing to save a bad time during a brake job later
#4
That is the same as the drum brakes on my trailers, my neighbors Chevy truck, and Fox body Mustangs.
Those are the only drum brakes I have experience with, but all are only held in place with the lug nuts.
Were you expecting something different? Do you see any reason for it to be something different?
Honda is unique in that it has those retaining screws for the rotors. ALL other cars I've owned do not have any form of retaining screw for the rotors either.
Those are the only drum brakes I have experience with, but all are only held in place with the lug nuts.
Were you expecting something different? Do you see any reason for it to be something different?
Honda is unique in that it has those retaining screws for the rotors. ALL other cars I've owned do not have any form of retaining screw for the rotors either.
Last edited by nomenclator; 03-01-2018 at 05:55 PM.
#5
As I understand it, the retaining screw is really just for the assembly line, and it becomes an absolute HELL of a time to get everything off after a few thousand miles of crud working on little screws.
Some people I know swear that the next new honda they get, they will take off each wheel and remove the screw first thing to save a bad time during a brake job later
Some people I know swear that the next new honda they get, they will take off each wheel and remove the screw first thing to save a bad time during a brake job later
#6
I guess I was expecting a pair of roller bearings with their outer side riding on bearing races inside a hub packed with grease, at the center of the drum, with a grease seal on the inside of the drum, and with inner part of the bearings fitting over a stub axle, and a big clamp-nut on the threaded end of the axle, to adjust the end-play in the drum. Studs screwed into threaded holes in the drum. No separate hub.
On my trailers, the wheel bearing is actually outside of the drum with the drums more inboard. The drums are still not held in place by anything though.
#7
That sounds interesting! In my mind, that would have the drawback of getting grease on the brake linings if the grease seal failed.
On my trailers, the wheel bearing is actually outside of the drum with the drums more inboard. The drums are still not held in place by anything though.
On my trailers, the wheel bearing is actually outside of the drum with the drums more inboard. The drums are still not held in place by anything though.
On the rear wheels, the lubrication was inboard of the brake backing plate - I think at the transaxle. I seem to recall an axle extending from the transaxle and the whole axle turned, and it was splined on the outboard end and the drum had matching splines, and there was like a 30 mm hex nut to hold the drum to the axle that was tightened to about 220 ft-lbs and had holes in it, for a cotter pin that also went thru a hole in the axle. So the only seal would be all the way inboard, at the transaxle.
Last edited by nomenclator; 03-01-2018 at 06:28 PM.
#8
I still don't know what's going on with the Fit's rear drums. I'm guessing that there is a hub inside the drum, that the hub has studs threaded into the hub, and that the drum has holes in it that fit over the studs. I'm guessing that there are roller bearings inside the hub, packed with grease, and that there is one or 2 grease seal somewhere inside of each hub, but I don't know where.
#9
That is correct. There is a bearing that rides on a spindle. The hub fits over that bearing and is retained by a large nut. The hub has studs pressed in through the backside.
Edited to add...those may not be the correct words. I'm just a home garage DIY'r so forgive me if those names aren't correct.
Edited to add...those may not be the correct words. I'm just a home garage DIY'r so forgive me if those names aren't correct.
#10
I guess that I do not understand the question. That is the way drum brakes and some disk rotors have been made and installed for 70 or more years.
Usually the manufacturer adds some little flat clips threaded over one or two of the studs to keep the rotors or drums from falling off during transit to the assembly plant. They are made thin enough so they do not have to be removed before the wheels are installed. They are always discarded by the first person to remove the drums. The screw holes on Hondas that I have seen are for removing the rotors / drums. Thread a bolt into them and keep turning. That will force rusted drums / rotors off of the hubs. If they are not rusted on then they will fall off on their own.
Usually the manufacturer adds some little flat clips threaded over one or two of the studs to keep the rotors or drums from falling off during transit to the assembly plant. They are made thin enough so they do not have to be removed before the wheels are installed. They are always discarded by the first person to remove the drums. The screw holes on Hondas that I have seen are for removing the rotors / drums. Thread a bolt into them and keep turning. That will force rusted drums / rotors off of the hubs. If they are not rusted on then they will fall off on their own.
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