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1. 06:24 AM - Re: 5-Year Rotax Rubber Replacement (rampil)
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| Subject: | Re: 5-Year Rotax Rubber Replacement |
Hi Roger,
Aeroquip 666 is supposed to be a service life unlimited product. Why
assume a ten year replacement, instead of on-condition?
Of course on the rotax we need to use real aerospace 666, not the cheaper
automotive hose lacking the interior conductive carbon strip.
Having said that, I will share a brief cautionary tale.
I removed the crappy VDO oil pressure transducer, replacing it with
a modern, aerospace rated (read expensive) transducer I mounted on the
firewall. I chose Aeroquip666 with appropriate fittings from the block to
the transducer. The hose and the fittings were about $100.
The hose worked great for years until.....I was charging my main battery
and the ground momentarily made contact with the stainless braid of this
hose. Unknown to me at the time, the 20 Amp charge current perforated
the teflon liner. No obvious sign on the ground... About a mile off the
runway, my cockpit filled with smoke from oil spray onto my muffler.
Under engine running oil pressure, that pinhole sprayed quite a bit of oil.
--------
Ira N224XS
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http://forums.matronics.com/viewtopic.php?p=439591#439591
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