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12th April 2024, 01:03 | #21 |
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Rover 75 club se cdti. Join Date: Nov 2008
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27th April 2024, 08:24 | #22 |
I really should get out more.......
75 tourer cdti, MG ZS 180, nissan terrano & 1.8t rover 25 Join Date: Feb 2010
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Just a little note for anyone interested, I’ve got a few sets to post on Monday, that will be the last opportunity for two weeks so would be nearly three weeks from Monday when they’ll arrive if you ordered after Sunday evening.
Hopefully everyone who have already ordered have received now For those concerned about strength or quality, here is how I ensure each batch is tested so I can be certain the raw material and the design meets a (and importantly my) minimum standard. A washer is placed in my press (which has a calibrated gauge so force can be accurately calculated) in its operating position on top of an m12 fastener with a standard hexagon nut underneath the washer (not a flanged bolt as is fitted to the cars to create the worst possible operating condition. A flanged bolt will have an even higher resistance to washer failure). The arrangement of the installation is then replicated with a suitably sized tube (which is larger than the subframe bush mounting point) to over stress the washer. There must not be catastrophic failure of the washer and for a pass the washer must carry a minimum load of 2 tons. This gives a safety factor of 4 to 1 in conditions worse than will ever be experienced in the event of the entire weight of the vehicle hanging off the four washers. Test results from the last batch showed a load carrying capability of 3 tons without catastrophic failure. There is plastic deformation of the washer as it is stressed beyond its yield point shown in the photo, but no failure. Considering the conditions applied to the test are far worse than will ever be experienced in operation even with failure of all four subframe bushes, we can be certain they will function as the OEM intended.
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27th April 2024, 10:34 | #23 | ||
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Freelander 2 Join Date: Aug 2010
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Quote:
Great post showing the demonstration of the washer big thank you.
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Arctic Givology Learn to Give Everything is Achievable ad altiora tendo. Check out our Nano meet dates http://www.midlandsnanomeets.co.uk/ http://www.the75andztclub.co.uk/index.php?thepage=howto " You do the work , we supply the expertise " |
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13th May 2024, 14:11 | #24 |
This is my second home
75 Tourer Join Date: Apr 2009
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Received the washers a week or so ago, nice engineering.
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13th May 2024, 17:33 | #25 |
I really should get out more.......
75 tourer cdti, MG ZS 180, nissan terrano & 1.8t rover 25 Join Date: Feb 2010
Location: Pontefract
Posts: 2,647
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Thank you for letting me know
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