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2003 FXD - Complete Rebuild

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Old Jun 16, 2025 | 12:53 PM
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OK, maybe it's a quoting error, but, what other guy? Looks like it's all posted by "Malfvnction" to me.

Don't want to beat a dead horse, but I won't sleep well not knowing why it's dead...
 
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Old Jun 16, 2025 | 01:02 PM
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I have to agree with @John CC .. All I see are washer that are totally powder coated.. Confused to the OP's explanation...
 
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Old Jun 16, 2025 | 01:08 PM
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Originally Posted by John CC
OK, maybe it's a quoting error, but, what other guy? Looks like it's all posted by "Malfvnction" to me.

Don't want to beat a dead horse, but I won't sleep well not knowing why it's dead...
Did you see the link? It was @zbomb that had the rim powder coat issue...unless @malfvnction mentioned a different one in this thread and I missed it...which is a decided possibility.
 
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Old Jun 16, 2025 | 02:06 PM
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Originally Posted by snake_eyes
Did you see the link? It was @zbomb that had the rim powder coat issue.
What link? The only mention of "zbomb" in this whole thread is your post above, and now these two more. (I did a search to be sure.) Are you suggesting that the "malfvnction" post I quoted (post 46) where he said "Today I did all the washers for the ARP hardware" was not his?
 
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Old Jun 16, 2025 | 02:28 PM
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Originally Posted by John CC
What link? The only mention of "zbomb" in this whole thread is your post above, and now these two more. (I did a search to be sure.) Are you suggesting that the "malfvnction" post I quoted (post 46) where he said "Today I did all the washers for the ARP hardware" was not his?
Originally Posted by John CC
Are you powdercoating the washers you're going to use under the arp hardware? Isn't that going to cause the same problem as when you powdercoat the rear hub then install the rear drive pulley on top of the powdercoat?
I don't see anywhere in this thread that he mentioned powder coating his rear hub and that's probably why he said "that wasn’t me…not sure what you are talking about out". The only guy I remember talking about that lately was @zbomb on a different thread that I linked. Both you and I commented on the issues he'd have with the powder on the mating surface. I was just trying to help Ż\_(ツ)_/Ż

This is the link FXDL - Phase 1 - Page 3 - Harley Davidson Forums
 
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Old Jun 16, 2025 | 05:24 PM
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OK, I get it. I mentioned the rear hub as an example of why you wouldn't want to powdercoat washers. It still looks to me like malfvnction is powdercoating washers to use under Arp hardware. If not then I'll just chalk it up to old timer's disease. If so, I've already said my piece.
 
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Old Jun 16, 2025 | 06:38 PM
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Originally Posted by John CC
OK, I get it. I mentioned the rear hub as an example of why you wouldn't want to powdercoat washers. It still looks to me like malfvnction is powdercoating washers to use under Arp hardware. If not then I'll just chalk it up to old timer's disease. If so, I've already said my piece.
FWIW….the rear hub being powder coated and then a Brake disk on top is a bad idea. The mating surfaces (the hub and disc) could be affected by variations in the powder coated thickness I’ve such a large area, causing a slight wobble in the disc. But the bolt and washer connecting the two, from the outside of the two parts, Why would a painted washer affect that? The area is so small, and the head of the bolt is most likely almost as big as the washers.

With the ARP bolts, the washers are the same size as the flanged heads, and the clamping area is much greater than a typical bolt. Just glanced through the parts manual and most of the HD stock bolts don’t even call for washers. And most are just Socket Head Cap Screws, which have much smaller clamping area than a ARP fasteners.

I don’t pretend to know it all, but it seems to me that it would hurt anything. The few microns of powder coat is being equally pressed by the flanged headed fastener to whatever part, which already has a greater clamping area than the stock fastener. Is it really an issue? I personally don’t think so, but would love to hear opinions and facts backing it up.

I was starting to get ready to start putting **** back together, but now this has me worried a little. Guess I better go do some more research….
 
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Old Jun 16, 2025 | 07:49 PM
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I'm sure someone else can give you a more accurate argument, but... Your powder coating is probably going to be at least 0.002" thick, times 2 sides is 0.004". it is my understanding that powder coating can't sustain much more than 5-6000 psi and a properly torqued bolt is going to be a lot higher than that. When it degrades you're looking at up to 0.004" "loosening". Isn't that why you did all that masking?

I've said enough...
 
Last edited by John CC; Jun 16, 2025 at 08:02 PM.
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Old Jun 16, 2025 | 09:14 PM
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The powder coated washers will have a detrimental effect on the clamping force of the fasteners. Whether it is enough to matter, I don't know.
 
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Old Jun 16, 2025 | 10:57 PM
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Enough of a doubt, I re-ordered washers. I’ll use the powder coated ones on non critical Parts. Few days delay. Guess I should have thought about it prior to spending 2 days powder coating them. Gives me times to get a few other things sorted I forgot about also.
 
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