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Ask DocSk8 (Expert Indoor Skate Building Advice) This forum is different then the other SkateLog forums in that it is not a discussion forum, but rather a place you can ask skate building expert Fred "DocSk8" Benjamin about building and repairing indoor speed, derby, and jamskate quad roller skates. Please start a new thread for each new question.

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Old May 24th, 2010, 04:17 AM   #1
FarmTruk
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Default "Oilite" bronze pivot bushings...

A few weeks back, I was cleaning up my Reactors, and noticed a LOT of gunk/black cruddy goo inside and around the pivot pin bushings.

So I got after it with some isopropal alcohol and Q-Tips. I got them relatively clean, and after adding a drop of 3-In-1 oil to the bushing cavity, reassembled them.

I am somewhat familiar with oilite, but I have got to thinking...did the alcohol solvent remove too much of the impregnated oil? Did the 3-In-1 soak back in to the porous bronze?


They seem fine now, and I may be overthinking this, but I do like these plates, and want to avoid long-term damage to either the bushing or pivot.



Any comments/experiences are appreciated.
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Old May 24th, 2010, 05:04 AM   #2
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Oilite bronze, also known as powdered metal, is impregnated with 30 wt oil.
It seems unlikely that the alcohol sucked all of the oil out of the bronze.
reoiling was a good idea. You might go back an add a drop of 30 non-detergent if you have some lying around. That is the stuff used commonly in air compressors. A drop of motor oil would do nicely, also. Some of it should soak back in.

Doc sez: Watch 'em close for a while just to be on the safe side... Since the material is vacuum impregnated to start with, it is not real easy to refill!!
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Last edited by Doc Sk8; May 24th, 2010 at 03:13 PM. Reason: Added content.
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Old May 24th, 2010, 03:52 PM   #3
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Apollogy:
I am not Doc Sk8. Doc, I sincerely apollogize for posting in your forum again. I feel like such a doofus. You are most gracious for not flaming me even though I deserve it.

-Res-
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Old May 24th, 2010, 04:48 PM   #4
FarmTruk
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Default

hehehe...resurector...I've done that a few times myself. Sorta' maybe confusored with teh "any all comments appreciated". If doc sk8 don' mind, ne'r do I.

Thanks for both replies. Doc, I was aware the oilite can be "recharged" but apparently needs specialized equipment. Hope springs eternal that a good recoating with teh 3-1 oil will somewhat help, though.


Next question is...I presume these bushings are replaceable if they become worn/damaged?

yea? nay?
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Old May 24th, 2010, 06:28 PM   #5
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Default Replaced..

Quote:
Originally Posted by FarmTruk View Post
hehehe...resurector...I've done that a few times myself. Sorta' maybe confusored with teh "any all comments appreciated". If doc sk8 don' mind, ne'r do I.

Thanks for both replies. Doc, I was aware the oilite can be "recharged" but apparently needs specialized equipment. Hope springs eternal that a good recoating with teh 3-1 oil will somewhat help, though.


Next question is...I presume these bushings are replaceable if they become worn/damaged?

yea? nay?
You bet ya.. Too bad they are not Delrin.. Cheaper and better wearing...
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Old May 25th, 2010, 01:28 AM   #6
FarmTruk
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Well, i feel a bit better after this thread. Also, a bit of googling found this page, and it did recommend periodic re-oiling, or "supplemental" lubrication.

http://www.loganact.com/tips/sleeve_...gs/oilube5.gif


Surely for such a low stressed bushing, the brief cleaning with rubbing alcohol on the surface goopage would be mitigated with an immediate drop of fresh clean lube to replace.

regardless, I feel better when my skates are cleaned up and not gunky.

Thanks for taking the time to reply. This board rocks!!!

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Old June 7th, 2010, 10:57 PM   #7
thesilverspyder
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Where would one go to find replacement pivot cups for reactors? Mine are worn down to the plate after 1 year of heavy usage.
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Old June 8th, 2010, 02:10 PM   #8
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Default Where??

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Originally Posted by thesilverspyder View Post
Where would one go to find replacement pivot cups for reactors? Mine are worn down to the plate after 1 year of heavy usage.
Any decent Riedell dealer...
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