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Hi,
This is a reply to all your posts about the struts.
My plan is to obtain samples from all the manufacturers and do a
side-by-side comparison. I will post pictures and all test info once I get all
those samples.
At this time I have received samples from one of the manufacturers.
The problem with the Stabilus is that their sample units are very expensive
and I want to make sure there is interest in their struts before I order
samples. You know, it makes no sense to order samples, pay for them as if they
are made of solid gold and then not order any more...
For now I told them that their price is too high and we are continuing
negotiations. I hope they’ll back down a little.
I don’t know if their struts are twice as good as the others. There’s no
way for me to know. As I’ve stated before, the warranty is pretty much the same
at 2 years and 30.000 cycles for all manufacturers. Every manufacturer says that
anything over two years is just “extra” and you should expect replacing the
struts after about 3 years. This includes Stabilus struts. The fact is that our
struts were designed to offer some margin for aging. When the struts are new
they hold the door up firmly. Then, as the strut ages and looses it’s pressure
it will still hold the door fully open but the force holding it up will be less.
All manufacturers allow up to 10% force loss during the warranty period.
According to my calculations a pressure drop of about 20% would still allow the
door to stay fully up. So, taking worst case scenario into calculation and
assuming the force will drop by 10% in two years, the door would stay fully open
for more than 4 years. That is the WORST CASE SCENARIO. If the strut looses
about 5% per two years then we’re looking at about 9 years before replacement is
needed. **
** – this is just a theoretical calculation! You can’t hold me to it if
your strut needs replacement after the two year warranty period. During the
first two years the strut will be replaced free of charge if it fails.
Greetings from Poland! Tom Niemczewski Vin 6149 plus 2418, 3633, 5030, 16473, 17086 Google earth: 52°25'17.66"N, 21° 1'58.40"E www.deloreana.com Sent: Thursday, August 07, 2014 3:52 PM
Subject: Re: [DML] Re: New door struts Tom, thank you for staying on this project. My suggestion would be that you
evaluate a sample strut from each manufacturer and choose the one that you
evaluate to be the best without considering price---unless there is little
quality and performance difference between the two top choices. If there is not
much difference and the number two choice is $20 to $35 each cheaper I would
prefer the cheaper set.
My bottom line is I need a set of struts and will not buy them until you
have them or notify us that you have given up on the effort.
Thanks,
Rod
Sent from my iPad
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