Need some help quick. Is this drum still good?

Lowered13

Active Member
I am replacing the rear drum pads on a 1985 cb700s and was wondering if the drum is fine?
 

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Re: Is this drum still good?

Also are the pads still good? Cause they are the same thickness as the new ones.
 

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How old are the pads? Pop one out, tap it on the corner of the porch or workbench, see if the glue bond holds. If it does, check the other shoe. If both are good, use them. But don't be surprised if at least one old shoe is bad.

For the low cost of new shoes, I'd replace them. My bike has front and rear brakes, but I only use the rear. I keep fresh shoes in it.
 
drum is fine if no holes are in it. You did not show the whole drum, but if it looks all the same you're good to go. You could deglaze it with some rough sandpaper eventually..
 
Let me fill you in on something..I inspected my old rear brake shoes and they looked fine...Earlier this year, I was 1/4 mile from my house, only doing 30, applied the rear brakes and the rear wheel locked up...The lining de-laminated from the shoe and jammed the rear wheel. I did a long screeching, locked up rear wheel stop....I was lucky the road was empty, and I managed to keep the bike upright.

Replace the rear shoes...it's relatively cheap, and you won't have to worry about an unexpected lock up.

I cringe thinking about a few of the places the brakes could of locked, and might of killed me....

Don;t mess around...!!!!

delaminatedrearbrakesho.jpg
 
Bert Jan said:
drum is fine if no holes are in it. You did not show the whole drum, but if it looks all the same you're good to go. You could deglaze it with some rough sandpaper eventually..

What grit would you recommend?
 
mydlyfkryzis said:
Let me fill you in on something..I inspected my old rear brake shoes and they looked fine...Earlier this year, I was 1/4 mile from my house, only doing 30, applied the rear brakes and the rear wheel locked up...The lining de-laminated from the shoe and jammed the rear wheel. I did a long screeching, locked up rear wheel stop....I was lucky the road was empty, and I managed to keep the bike upright.

Replace the rear shoes...it's relatively cheap, and you won't have to worry about an unexpected lock up.

I cringe thinking about a few of the places the brakes could of locked, and might of killed me....

Don;t mess around...!!!!

I agree. For the cost of them it is worth knowing your brakes are good. The ones thing not to bugger around with is the things that stop you.
 
Djfob said:
What grit would you recommend?
36 grit remove as much rust color evenl;y all the way around as you can
leave it all scratchy and cross-hatched to bed the new shoes in
 
bvander said:
I agree. For the cost of them it is worth knowing your brakes are good. The ones thing not to bugger around with is the things that stop you.
me too
it happened to me with front shoes,they came undone as soon as i hit the binders
going about 35,rag-dolled me over the bars inna split second,luckily i had just pulled off the pavement and went down in an orchard.it was a wake-up call never run old shoes specially front
riveted shoes are much safer,but can still break up if old
 
That varies by rider. I tighten the nut down on the linkage until the brake shoe just starts to drag, and back it off 2 flats. Ride it about 50-100 feet at a slow speed, testing every few feet. Then I tend to tighten them up a hair and repeat until it "feels right". I want mine to lock up if I look at it funny, which is NOT safe for new or returning riders.

No two bikes are the same, but you want a firm pedal with very little free play, check your book if you have it. There should be lines in the drum cover (brake plate), when you use the rear brake, you ideally want to see no more than 1/4-1/3 of that range traveled. At least, that's how it used to be taught. From there on, only riding it and using the brake will tell you if it is too tight or too loose. And shoes do wear down and need adjusted/reset/lubed from time to time.
 
Lowered13 said:
Is there a way I should brake in the new brake pads?

Yeah, look at your screen and name this website name out loud.
You'll have to stop sometime...
 
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