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 Post subject: Squeaky Wheel
PostPosted: Sun Dec 17, 2017 6:43 pm 
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Left rear wheel is making a high pitched noise upon fast rotation and a dragging sound at slow rotation. What is it? Can I fix it?

https://www.dropbox.com/sh/t19h7tgbfqhv ... g6kIa?dl=0


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 Post subject: Re: Squeaky Wheel
PostPosted: Sun Dec 17, 2017 9:39 pm 
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TimDevetski wrote:
Left rear wheel is making a high pitched noise upon fast rotation and a dragging sound at slow rotation. What is it? Can I fix it?

https://www.dropbox.com/sh/t19h7tgbfqhv ... g6kIa?dl=0


Pull the drum off, bet there is a spring rubbing on the drum.

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 Post subject: Re: Squeaky Wheel
PostPosted: Mon Dec 18, 2017 12:29 am 
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or a e-brake clip that got loose...

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 Post subject: Re: Squeaky Wheel
PostPosted: Tue Dec 19, 2017 4:08 am 
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Or a star wheel adjustment spring rubbing on the drum or broken off.

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 Post subject: Re: Squeaky Wheel
PostPosted: Sat Jan 13, 2018 4:29 pm 
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Doesn’t look like anything is out of place — at least to me — does that mean it is the wheel bearing? As soon as I took off the drum, it started leaking oil. Does that mean anything, other than that I also need to replace the seals?


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 Post subject: Re: Squeaky Wheel
PostPosted: Sat Jan 13, 2018 6:55 pm 
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Could it have been a pebble or other tiny debris? Rubbing causes shiny spots though...unless it was for a very short amount of time. Look at where the OD of the drum is near the OD of the backing plate, sometimes they rub.

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 Post subject: Re: Squeaky Wheel
PostPosted: Sat Jan 13, 2018 7:09 pm 
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I think you only need to replace the small O-ring. Seal looks dry. Pull the spacer and pry out the O-ring. If the metal washer behind the O-ring is the wrong type and "squished", you will have to pull the bearing cap to replace the washer. If the washer is OK, replace the O-ring and get that drum back on and tightened as soon as possible; the O-ring will leak until you have clamped it with the drum.

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 Post subject: Re: Squeaky Wheel
PostPosted: Sat Jan 13, 2018 9:23 pm 
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On the backing plates are metal pads where the brake shoes rub that need to be greased. Are they?

Mike

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 Post subject: Re: Squeaky Wheel
PostPosted: Sun Jan 14, 2018 4:46 pm 
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Tim,

Surprised no one mentioned this earlier , but when you remove the axle nut & brake drum, you remove the "squeeze" on the small O-ring which will allow oil from the tube to pass and run out of the axle tube !! I always raise the axle under the shock mount such that the axle end is slightly elevated relative to the tube's trans end before removing the drum.
If you study the sectional drawing on pg. R63 of the B/C shop manual it will become completely clear as to the why's and wherefore's.

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 Post subject: Re: Squeaky Wheel
PostPosted: Sun Jan 14, 2018 6:23 pm 
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Tim, a while ago I had a slight weep through the small drain hole in the LR drum, and when I removed it, I replaced the outer o-ring as Vic suggested. I raised the axle to as close as possible to vertical to do the job (Larry) and when I replaced all the shoes, I used a little Bendix blue ceramic grease between the shoes and the backing plate (Mike). Leak stopped and no noises. I also found the cause of an annoying scraping noise - the star adjuster tension spring was twisted and rubbing (above).

Maybe I am wrong (not uncommon) but the inner parts of your brake seem very damp? Even the drum surface. Is that because of the oil leak from the outer o-ring?

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