OE Replacement Vanos Hub (Spring) Covers

Assimilator1 · 12-04-2022, 07:37 AM

Amazing work! Have you had a set on your car since?

I must say though that I'm concerned that you won't be able to (lab/kitchen) test them sufficiently well vs actual in use. e.g the S65 takes much less time than 1/2hr to warm up (except perhaps in very cold climates). Also, would the combustion gases, soot and and acid build up in the oil significantly affect the long term life of your plastics?
What do you expect their safe lifetime to be?

Also (as you might know by now anyway), the Slon covers have dropped in price to $350, thanks to competition!

straightupfunk · 07-08-2024, 04:41 PM

Quote:

Originally Posted by buldogge

Have you ever worked with this material?: https://www.matterhackers.com/store/...nt/sk/M8H26VSM

-Mark in St. Louis

No, but my experience with metal filaments in FDM/FFF is that you can't reliably know where/how much it shrinks when sintered.

Quote:

Originally Posted by Assimilator1

Amazing work! Have you had a set on your car since?

I must say though that I'm concerned that you won't be able to (lab/kitchen) test them sufficiently well vs actual in use. e.g the S65 takes much less time than 1/2hr to warm up (except perhaps in very cold climates). Also, would the combustion gases, soot and and acid build up in the oil significantly affect the long term life of your plastics?
What do you expect their safe lifetime to be?

Also (as you might know by now anyway), the Slon covers have dropped in price to $350, thanks to competition!

I completely forgot about this saga after I installed and ran the Markforged Onyx ones for over a year! I ended up installing metal ones when I installed my NRW covers last October, but I should post some pictures of how uneventful the plastic ones looked after 6mo of daily driving them to/from work. No discernible degradation, a clean insoluble report from Blackstone, and they didn't crack when I removed them!

And yeah, I think I made enough noise in the community for the copycats to be produced in China, and the Slon covers to bring their price down to something reasonable haha.

Track/S · 07-10-2024, 12:18 AM

If someone sends me the drawing I can make the covers in CNC with 7075 aluminum, at a good price for forum members!

andreu12qw · 12-15-2025, 06:38 PM

this ever gain any more traction?

12-04-2022, 07:37 AM	#45
Assimilator1 Major 877 Rep 1,289 Posts Drives: BMW M3 e92 08 & 330d e90 10 Join Date: Sep 2019 Location: UK, Surrey iTrader: (0) Garage List 2010 BMW 330d [8.00] 2008 BMW M3 [0.00]	Amazing work! Have you had a set on your car since? I must say though that I'm concerned that you won't be able to (lab/kitchen) test them sufficiently well vs actual in use. e.g the S65 takes much less time than 1/2hr to warm up (except perhaps in very cold climates). Also, would the combustion gases, soot and and acid build up in the oil significantly affect the long term life of your plastics? What do you expect their safe lifetime to be? Also (as you might know by now anyway), the Slon covers have dropped in price to $350, thanks to competition! __________________ . Oil analysis for finding wearing rod bearings?. Collation of oil analysis reports with some rod bearing photos for the M3's S65. My categorisation of pulled rod bearings in the rod bearing condition thread. My updated 'Blown engines' list.
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07-10-2024, 12:18 AM	#47
Track/S Colonel 3458 Rep 2,583 Posts Drives: M2C, M4 GTS Join Date: Oct 2019 Location: Around the world iTrader: (0)	If someone sends me the drawing I can make the covers in CNC with 7075 aluminum, at a good price for forum members!
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12-15-2025, 06:38 PM	#48
andreu12qw Second Lieutenant 58 Rep 241 Posts Drives: '11 E90 335i MSport Join Date: Sep 2016 Location: SoCal iTrader: (2)	this ever gain any more traction?
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