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Rear brake binding (V7 II)

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motopete View Drop Down
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    Posted: 15 Apr 2018 at 19:02
I thought I'd given my bike a good check after its winter rest, but apparently not good enough...

After an enjoyable day visiting the Norton factory (thanks Pete & Dave for organising that Thumbs Up), I thought there was an odd smell when I got home. Then I felt the rear disc. Oh dear...

Anyway, yesterday I popped the rear caliper off to see what was going on, expecting a stuck piston or sliding pins, but everything was free moving and smooth. I only replaced the pads last July and greased all the appropriate bits (coated the pistons in red rubber grease and they were still moving nice and smoothly).

What I eventually discovered is the EBC pads I'd fitted are fractionally too big for the caliper Ermm. The metal edge of the outer pad was binding on the brake carrier (the bit that bolts to the bike), so was effectively jammed in the caliper.

After filing away a small area of metal backing of the pad, around the area where it was clashing with the carrier, it fits like a glove and stays free of the carrier.
Now when the brake is released, I can feel some proper free-play in the caliper.

Worth bearing in mind if you ever fit new pads, aftermarket parts are not always precisely the same as the originals...

PS. Sorry, I didn't take any photo's, but it'll be obvious where the pad might clash with the carrier, around the area of the upper sliding pin. EBC FA256 before you ask.

Cheers, Pete.

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V7Chris View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote V7Chris Quote  Post ReplyReply Direct Link To This Post Posted: 15 Apr 2018 at 19:33
Good heads up - thanks
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rapheal View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rapheal Quote  Post ReplyReply Direct Link To This Post Posted: 18 Apr 2018 at 21:29
always fit O/E stuff myself
been caught in the past with problems like that
they aint cheap though

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Brian UK View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 18 Apr 2018 at 22:54
EBC are good quality normally, unless they were Chinese backstreet copies.
Brian.

Better 5 minutes late in this world than years early in the next.
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Ken-Guzzibear View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ken-Guzzibear Quote  Post ReplyReply Direct Link To This Post Posted: 19 Apr 2018 at 12:30
Agree EBC are ok prefer Ferodo or on the newer bikes the Brembo However on older Tonti bikes the brembo pads have a tendency to come away from the backing.... not on the 4 pot caliper pads tho. As Brian says beware the e bay cheap copies stuff
The Older i Get, The Better I Was
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motopete View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote motopete Quote  Post ReplyReply Direct Link To This Post Posted: 19 Apr 2018 at 13:10
Originally posted by Brian UK Brian UK wrote:

EBC are good quality normally, unless they were Chinese backstreet copies.

Made in the UK, at least that's what the printing says and they look genuine.

Bought them from Guzzibits and in my experience they're a really good supplier. Of course I'm not suggesting this is any fault of Guzzibits, they simply sold what EBC supplied in good faith.

I have noticed the rear brake has a better feel now, previously it was a bit wooden and hard to feather lightly. I like a touch of rear brake to assist with low speed manoeuvre's.

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Mike H View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 19 Apr 2018 at 17:58
That made me smile - that's how I was taught on m/c training schemes, rear brake only use is the correct braking method for low speed manoeuvres. It leaves your right hand totally free to concentrate on just throttle control. Big smile



"Chicken nuggets don't dance on a Tuesday."
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motopete View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote motopete Quote  Post ReplyReply Direct Link To This Post Posted: 21 Apr 2018 at 17:09
Originally posted by Mike H Mike H wrote:

That made me smile - that's how I was taught on m/c training schemes, rear brake only use is the correct braking method for low speed manoeuvres. It leaves your right hand totally free to concentrate on just throttle control. Big smile


Bang on Mike! RAC/ACU training course in 1979, the habit stuck Thumbs Up

I even do the same on my pushbike to help with tight wiggles through narrow gaps.
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Mike H View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 21 Apr 2018 at 20:35
That was it, RAC/ACU

"Chicken nuggets don't dance on a Tuesday."
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