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Post by wings on May 29, 2024 6:19:41 GMT
Note my Sonic rear running gear is Mk1 Ford Focus 1998-2005 Wheels bearings, and drive shafts. IB5 gearbox
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Post by wings on Jul 4, 2024 2:22:08 GMT
Sonic 7 I have experienced passenger side drive shaft hub nut after new one fitted go to finger loose after just a few miles. This has happened twice. Each one was a new black layered nut with integral washer. I changed both side hub nuts to the quality stainless ones. Torqued to 316nm. Recommend not to use the dangerous black layered nuts.
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Post by kiwicanfly on Jul 5, 2024 8:08:25 GMT
Why did you pick stainless nuts out of interest?
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Post by kiwicanfly on Jul 6, 2024 22:27:19 GMT
I have been researching the laminated nuts and it would appear that Ford put a three use limit on them.
They appear to be prevailing torque nuts, this means that they have a slight distortion in them so they "grip" the threads to help reduce the chance of coming loose, the same principal as the nylon insert in nylok nuts which also should not be reused.
Above you said that you used new, but was this they driveshaft only? If that is the case it would make sense that the original nuts would have been re-used more than three times.
My question earlier about the use of new stainless nuts was because I would be surprised if stainless hub nuts actually existed as stainless is not as strong as steel despite us intuitively thinking the opposite.
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Post by wings on Jul 7, 2024 1:03:11 GMT
Greetings In response to your questions? My mechanic fitted brand new ford layered black nuts when replacing my wheel bearings. Catalyst converter company in Ashford Kent (mentioned in an earlier post) also used NEW that type of black layered nut that came loose which l didn’t discover until 200 mile trip home.
NEW GENUINE FORD FOCUS RS MK1 32MM HUB NUT / DRIVE SHAFT NUT # 4659413 This superseded black ones. From Ford Parts Yorkshire on eBay. See picture on eBay copy and paste this number for eBay search 226025878044. I stated stainless out of assumption. Really don’t know actual metal.
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Post by wings on Jul 7, 2024 1:09:51 GMT
Was brand new for drive shafts hub nut only. Means never used on anything else or part on my car.
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Post by wings on Jul 7, 2024 1:17:03 GMT
Original hub nuts never used again simply Discarded. Black ones all discarded. Hope you on same page now.
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Post by kiwicanfly on Jul 7, 2024 1:49:13 GMT
Interesting.
For reference I too discarded the laminated nuts and used another brand of solid nuts. At the time I was not aware that those nuts were OEM type, I simply disliked the look of them, they seemed a cheap option which made me uncomfortable.
Regarding SS fasteners in general. You can get quality SS fasteners but they barely reach the minimum tensile rating for automotive use and you have to be careful in your selection. I did actually use them throughout my Rocket build.
For my front stub axle bolts, the ones I lease wanted to break! I used Bumax bolts which are true high tensile SS but are VERY expensive.
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