Front wheel grinding

Started by MongoReturns, September 19, 2010, 03:48:42 AM

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MongoReturns

Hey all,

I've had a bit of a grinding sensation in the front wheel since I put a new tire on (Continental something or another, cheap & feels good).  I can't figure it out.  I've ridden about 200 miles since the new tire; the grinding isn't getting worse or going away.

Possible causes:
-tire is not balanced.  I'd think this wouldn't feel like a grinding though
-front brake pads re-bedded weird.  I forgot to do the usual bedding in when I replaced the wheel.  Grinding seems to go away on braking.
-there was a bit of scoring on the axle, on the left side where the bearing is.  Hmmm.  Bearing seemed to spin fine though.
-axle nut not torque'd to spec.

Thoughts?  Thanks!
2000Monster750Dark: cored pipes, stage2, 43t, f-18, dptach
2007 1098Red: home depot cooler guard, on sale cluch cover, on sale dp dark tall screen, ebay hugger, hand painted clutch spring caps

ducpainter

I'd look at the brakes since the noise changes when you apply them.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."



Howie

If it is not the brakes, next suspect would be wheel bearings.  It wouldn't hurt to loosen the pinch bolts, retourque the axle and tighten the pinch bolts.

MongoReturns

Thanks - hopefully they're the culprit, and the easiest thing.  They (EBC hh's) have over 10k miles on them  :-X
2000Monster750Dark: cored pipes, stage2, 43t, f-18, dptach
2007 1098Red: home depot cooler guard, on sale cluch cover, on sale dp dark tall screen, ebay hugger, hand painted clutch spring caps

MongoReturns

Quote from: howie on September 19, 2010, 04:08:30 AM
If it is not the brakes, next suspect would be wheel bearings.  It wouldn't hurt to loosen the pinch bolts, retourque the axle and tighten the pinch bolts.

Ah man I hope it's not the bearing!  But I'll try that too.  Always paranoid about axle torque.
2000Monster750Dark: cored pipes, stage2, 43t, f-18, dptach
2007 1098Red: home depot cooler guard, on sale cluch cover, on sale dp dark tall screen, ebay hugger, hand painted clutch spring caps

DucHead

Also, try loosening the axle pinch bolts (at the bottom of the fork) and bouncing the front end a few times.  Then tighten the pinch bolts back up.
'05 S4R (>47k mi); '04 Bandit 1200 (>92k mi; sold); '02 Bandit 1200 (>11k mi); '97 Bandit 1200 (2k mi); '13 FJR1300 (1k mi); IBA #28454 "45"

stopintime

Wheel on backwards?  :-\  (pads hit a different "bed"?)
252,000 km/seventeen years - loving it

DarkStaR

#7
Quote from: pompetta on September 19, 2010, 04:25:00 AM
Also, try loosening the axle pinch bolts (at the bottom of the fork) and bouncing the front end a few times.  Then tighten the pinch bolts back up.

+1

Take a look at the rotor where it passes through the caliper and see if they are touching.

Who installed the wheel?

Also, SOME pad drag noise is normal.

ducpainter

Quote from: stopintime on September 19, 2010, 08:39:53 AM
Wheel on backwards?  :-\  (pads hit a different "bed"?)
Wheel can't go on backwards because of the speedo drive.

No?
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."



stopintime

Quote from: humorless dp on September 19, 2010, 11:53:42 AM
Wheel can't go on backwards because of the speedo drive.

No?

No, yes, no, yes, no, yes ......
I really don't know, just thinking out loud...

Maybe it's a wrong-sided speedo drive that's making the noise [cheeky]

Excuse me, I'm not in a useful mode today ;)
252,000 km/seventeen years - loving it

ducpainter

Quote from: stopintime on September 19, 2010, 12:44:35 PM
No, yes, no, yes, no, yes ......
I really don't know, just thinking out loud...

Maybe it's a wrong-sided speedo drive that's making the noise [cheeky]

Excuse me, I'm not in a useful mode today ;)
Me too...

idea bouncing is good. [thumbsup]
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."



The Mad King Pepe'

What's the size of the tire you put on? Most of not all monsters take a 120/60 on the front, if you put on a 120/70 the tire might be grinding against the fender.
First they came for the Socialists, and I did not speak out-- Because I was not a Socialist.
Then they came for the Trade Unionists, and I did not speak out-- Because I was not a Trade Unionist.
Then they came for the Jews, and I did not speak out-- Because I was not a Jew.
Then they came for me--and there was no one left to speak for me.

vaclav

Did you use windex to put the tire on? If so did you leave the rotors on during the swap? I did that last time and since then I get a little rubbing noise when coming to a complete stop or pulling away from a stop after the brakes are warmed up. I wiped them off after the change but I think you have to use brake cleaner to get the residue off. I would describe the noise as more of a rub then a grind but either term could apply.

MongoReturns

Quote from: stopintime on September 19, 2010, 08:39:53 AM
Wheel on backwards?  :-\  (pads hit a different "bed"?)

Impossible - only one caliper & rotor  ;D  And speedo works fine.

I also checked to make sure the tire's going in the right direction.  It is.
2000Monster750Dark: cored pipes, stage2, 43t, f-18, dptach
2007 1098Red: home depot cooler guard, on sale cluch cover, on sale dp dark tall screen, ebay hugger, hand painted clutch spring caps

MongoReturns

Quote from: DarkStaR on September 19, 2010, 09:08:00 AM
+1

Take a look at the rotor where it passes through the caliper and see if they are touching.

Who installed the wheel?

Also, SOME pad drag noise is normal.

Me & a buddy, with beer of course.  Clearance from rotor to caliper is disturbingly close, but my 1098 brakes are the same way.  Rotor not warped.  Definitely not a brake dragginf feel, unless one of my pads is done.
2000Monster750Dark: cored pipes, stage2, 43t, f-18, dptach
2007 1098Red: home depot cooler guard, on sale cluch cover, on sale dp dark tall screen, ebay hugger, hand painted clutch spring caps