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02-09-2022, 01:48 AM | #1 |
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Spindle bushing
Are spindle bushings (35-41) porous ???
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02-09-2022, 02:33 AM | #2 |
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Re: Spindle bushing
IMO,No.
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02-09-2022, 11:40 AM | #3 |
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Re: Spindle bushing
From what I've seen, No . . .
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02-09-2022, 11:51 AM | #4 |
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Re: Spindle bushing
Original bushings were often made of Oillite® and as such, were in fact porous.
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02-09-2022, 03:15 PM | #5 |
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Re: Spindle bushing
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02-09-2022, 06:47 PM | #6 |
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Re: Spindle bushing
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02-10-2022, 01:15 PM | #7 |
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Re: Spindle bushing
OK, so if they are non-porous they could be honed to fit ,correct ???
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02-10-2022, 02:25 PM | #8 | |
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Re: Spindle bushing
Quote:
If Ford did use Oilite k/p bushings how did they get the grease passages in the ID and also, were they steel backed like the k/p bushings I’ve always used? I see no advantage to using Oilite since the king pins required greasing at regular intervals.
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02-10-2022, 03:23 PM | #9 |
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Re: Spindle bushing
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02-10-2022, 04:16 PM | #10 | |
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Re: Spindle bushing
Quote:
I am not disagreeing with your presumption that there would be no advantage to using this for these bushings. However, as (hopefully) you know, Ford used materials well beyond in quality as to what was necessary in many applications. So, just because you do not see an advantage does not mean Ford didn't.
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02-10-2022, 11:39 PM | #11 | |
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Re: Spindle bushing
Quote:
The kingpin bushings that I've seen and used in the 60 + years I've been playing with these early Fords, have not been porous/Oilite bushings that would have been ruined by reaming or honing them to their final inner diameter.
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02-11-2022, 01:57 AM | #12 |
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Re: Spindle bushing
Every one that I have ever dealt with all my life, with many different brand vehicles, has been steel backed, bronze coated. Though, I can't say I ever had any NOS ford bushings, usually NORS stuff from swap meets
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02-11-2022, 08:34 AM | #13 |
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Re: Spindle bushing
The wartime era Ford kits had what looks like powdered steel bushings, looking much like oilite brass except for color and can be picked up with a magnet.
I don't know how porous they are though. |
02-11-2022, 09:20 AM | #14 |
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Re: Spindle bushing
Electro-Motive, GM’s locomotive division began producing powder metal components in-house in 1974 and did so for twenty years. My involvement spanned that time until it was was farmed out in a cost cutting measure. From what I know about Oilite (which we did not produce) it may have performed well as a k/p bushing but I wonder about the feasibility of compacting a component that tall, and having a thin wall thickness. No doubt they did it, but I’m wondering just how it was done. Oilite’s ability to be self lubricating had no benefit in that application so I wonder why it would have been chosen in the first place.
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02-11-2022, 09:58 AM | #15 |
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Re: Spindle bushing
Yes, u can hone, or use lapping compound on the spindle bushings. However I’ll go Captain obvious on you , definitely flush clean & wipe meticulously to remove any residue as you would on internal bearing surfaces!
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02-11-2022, 10:40 AM | #16 |
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Re: Spindle bushing
I'm not getting involved in the fact that Ford used Oilite bushings or not, however I have been playing with old Ford's since 1962 and have never seen Oilite bushing in any of the front ends that I have rebuilt. That being said, I don't think that the composition of Oilite can take the pounding that is subjected to a Ford or other make spindle. I have used Oilite bushings in motors and shafts, but never used them in automotive spindles. They work great for rotational force but in a spindle, I don't know. We need a mechanical engineer to chime in.
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02-11-2022, 01:46 PM | #17 |
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Re: Spindle bushing
This question really got me interested, so I started doing some investigating. What I did learn about Oilite bushings is that they should never be honed or machined (reamed), as this process will "smear" (close) the pores in the bushing, blocking the lubrication.
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02-11-2022, 04:07 PM | #18 |
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Re: Spindle bushing
Ford did use Oilite bushings in the 1932 distributors and perhaps for a number of years afterward. I have to wonder about using Oilite bushings in an application that relied upon grease as the lubricant. Oil will flow through Oilite but grease, which is compounded with some solids, seems like it would clog up the porous Oilite matrix. Oil flows but grease is designed to stick around.
Last edited by ursus; 02-11-2022 at 04:08 PM. Reason: flows, not flow |
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