EVO All Evo Model Discussion

The Brakes

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Old Sep 22, 2013 | 05:26 PM
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Default The Brakes

I found the part number for my brake pads on my 89 Ultra. I ordered them online and they were 50% the cost of buying them from Harley. Do any of you know the part number for the O-rings that go on the caliper pins? Also what about the large O-ring that was used on the primary cover. I would think the rings would have a MS number that would be easy to find if you knew the number.
Thanks.
 
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Old Sep 22, 2013 | 05:50 PM
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Some auto parts stores have o-ring sizers, kind of look like little traffic cones with markings. I've used them, pretty accurate. Only place I've bought o-rings that way was NAPA. Some of the high end hardware stores, like Ace Hardware might have them, too. You'd need the one out of your bike, of course. I just got some Lyndall Gold pads for my 89 Ultra, $65 a pair, didn't check out oem prices, wanted pads with better performance but haven't put them on yet to find out if the reviews are right. But better pads sure improved my 883, were worth the extra money, and the 1200 is on the jack now getting new Lyndall pads.
 
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Old Sep 22, 2013 | 06:11 PM
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Old Sep 22, 2013 | 08:42 PM
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brakes on Harleys are poor. the newer four pot/piston are a radical improvement. I guess the moco thought that since the bikes are slow they didnt need good brakes. Pads are one thing but more powerful calipers are another.
 
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Old Sep 22, 2013 | 10:00 PM
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Lyndall pads are great I had them on My E Glide , going to order some for my softail
 
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Old Sep 23, 2013 | 07:03 AM
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I went with stock pads. They are G74ST. The service manual has O-rings (2) on the lower mounting pin and one on the upper one.

The rear set was G154ST.

The pads that were on the bike are spent on one side of the caliper but look like new on the other side.

I'm looking forward to getting this done. The weather in Georgia has been great for the bike.
 
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Old Sep 23, 2013 | 12:47 PM
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You can look here at an online parts catalog to get part numbers for your bike.
 
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Old Sep 23, 2013 | 06:09 PM
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You don't need to replace the O-rings unless they're damaged. You will need to grease the caliper pins. Don't use ordinary "brake caliper pin grease" from the auto parts store. It will react with the O-rings and make them swell, seizing the calipers. I know this firsthand. The proper lube is Dow-Corning Moly 44 grease-moly in a silicone base. You can buy little packets of it at the Harley dealer (part #94674-99), or search for it online.

FWIW, I'm currently running Hawk Engineering organic pads on the Softail. They work really well, and don't shed black dust on the wheels or squeal and scrape like the stock pads.
 

Last edited by Uncle G.; Sep 23, 2013 at 06:14 PM.
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Old Sep 24, 2013 | 04:21 AM
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You can use what is often called "rubber grease" too. Its usually red and doesn't react.
 
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