 Question about the powder coating on my car's spindles |
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| RoadGlue |
 Aug 30 2022, 02:56 PM
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#1
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Sonoma County Gear Head  Group: Admin Posts: 2,033 Joined: 8-January 03 From: Santa Rosa, CA Member No.: 108 Region Association: Northern California 
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Just got the batch of powder coated suspension parts I was hoping to have ready in time to make it to the Oregon West Coast Ramble! Long story short - they got the parts later than I'd hoped and then it took them two months to turn it around.
Everything looks good, except I'd asked them to not coat this surface outlined below. Will I need to grind/remove any of this off that face? I'm just not sure if this really affects anything at the end of the day, but I'd like to be sure.  I'm curious because the original surface is unpainted and machined from the factory:  Thanks in advance! Randy Attached image(s) 
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| RoadGlue |
Aug 30 2022, 03:01 PM
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#2
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Sonoma County Gear Head Group: Admin Posts: 2,033 Joined: 8-January 03 From: Santa Rosa, CA Member No.: 108 Region Association: Northern California
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I have no idea why that last pic is showing up twice as it's not there when I go into the edit mode...
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| mepstein |
Aug 30 2022, 03:06 PM
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#3
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914-6 GT in waiting Group: Members Posts: 19,307 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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You can always take a 3m stripping wheel to the machined part and get it to bare metal. Many times that’s easier than trying to mask. Usually the area where the calipers contact should be bare so not to change dimensions. |
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| Superhawk996 |
Aug 30 2022, 03:07 PM
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#4
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914 Guru Group: Members Posts: 5,876 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch
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Your fine. Only the dust shield attaches to that area.
The hub seal runs on the “step” which is clean. You should remove the powder coat locally where the calipers mate to the spindle. Powder coat makes for a soft joint and will lead to the brake caliper bolts losing torque and coming loose. |
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| RoadGlue |
Aug 30 2022, 03:09 PM
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#5
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Sonoma County Gear Head Group: Admin Posts: 2,033 Joined: 8-January 03 From: Santa Rosa, CA Member No.: 108 Region Association: Northern California
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QUOTE(mepstein @ Aug 30 2022, 02:06 PM)  You can always take a 3m stripping wheel to the machined part and get it to bare metal. Many times that’s easier than trying to mask. Usually the area where the calipers contact should be bare so not to change dimensions. Wow, this post is cursed. Look at all the quoted text in your reply from another thread. Ah! Thanks for the heads-up on both the caliper mounting surfaces and the 3M stripping pads. Do you think it's best to remove it from the face around the base of the spindle then too? Cheers |
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| RoadGlue |
Aug 30 2022, 03:09 PM
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#6
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Sonoma County Gear Head Group: Admin Posts: 2,033 Joined: 8-January 03 From: Santa Rosa, CA Member No.: 108 Region Association: Northern California
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QUOTE(Superhawk996 @ Aug 30 2022, 02:07 PM) Your fine. Only the dust shield attaches to that area. The hub seal runs on the “step” which is clean. You should remove the powder coat locally where the calipers mate to the spindle. Powder coat makes foe a soft joint and will lead to the brake caliper bolts losing torque and coming loose. Okay, perfect! Thank you so much. |
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