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Re: Europa-List: Rotax 912 Exhaust Spring Clip Faliure...

Subject: Re: Europa-List: Rotax 912 Exhaust Spring Clip Faliure...
From: david park <dpark748@icloud.com>
Date: Mon, 13 Feb 2017 15:38:15
On older pipes with upturned hooks you need 95mm springs available from CKT n
ot sure if Europa has these?
Regards
Dave Park


> On 13 Feb 2017, at 15:01, Bud Yerly <budyerly@msn.com> wrote:
> 
> Just a note.
> Following up on my last post on Exhaust Leaks.
> 
> Muffler and down pipe movement cause exhaust leaks, exhaust jets weaken th
e springs, and failures result.  This is especially true for the 912S and it
's exhaust system.
> 
> Over the last 10 years I have found spring failure on the exhaust is signi
ficantly reduced by buying stainless springs that won't corrode, run safety w
ire through the center to prevent FOD or dropped object or other interferenc
e from spring parts plus holds the exhaust on.  Also, I find coating one sid
e of the spring with a bead of silicone RTV reduces vibration harmonics.
> 
> CKT has changed their subcontractor as tooling marks were made on the spri
ngs causing premature failure which reduced failures significantly.  Karen s
hould have these springs in stock also.
> 
> Regards to all,
> 
> Bud Yerly,
> Custom Flight Creations, Inc.
> 
> Sent from my Verizon Wireless 4G LTE DROID
> On Feb 11, 2017 1:20 PM, david park <dpark748@icloud.com> wrote:
> 
> 
> Jon,
> I flew back from Spain and on landing back at Sleap i later found three sp
rings broken. ???? Carry spares now!!
> Dave Park
> 
> 
> > On 11 Feb 2017, at 17:41, David Watts <dg.watts@talktalk.net> wrote:
> > 
> > 
> > Jon,
> > 
> > On more than one occasion, I have discovered after landing that I have s
uffered a spring loss on my Classic exhaust and there has been no side effec
t, so I would say that so long as there is only one joint effected you can f
ly like it, although I would not do too much flying in that condition.
> > 
> > As for welding a new clip on, that should be straightforward although yo
u have to find somebody able to weld stainless steel, which shouldn't be a r
eal problem.
> > 
> > As for a replacement pipe, Europa may have one, but failing that CKT Eng
ineering, near Exeter will be able to sort one out for you. They did for me a
 couple of years ago.
> > 
> > Dave Watts
> > G-BXDY Classic Mono 912S   2300 hours
> > 
> >> On 11 Feb 2017, at 17:13, italianjon <jon.catilli@gmail.com> wrote:
> >> 

> >> 
> >> Hi All,
> >> 
> >> Anyone had the clip fail? I've attached a photo.
> >> 
> >> Is this:-
> >> 
> >> 1) Safe to fly, in so far as to a mechanic?
> >> 2) Can I weld on another clip, or is it a new piece of exhaust pipe?
> >> 
> >> I have a classic with a Rotax 80Hp fitted, this is the exhaust pipe fro
m Cylinder 2. so: -
> >> 
> >> 3) Can I buy just the first pipe? 
> >> 4) On the classic this was a Europa specific part from Cylinder 2, am I
 correct?
> >> 
> >> Best 
> >> 
> >> Jon
> >> 
> >> 
> >> 
> >> 
> >> Read this topic online here:
> >> 
> >> http://forums.matronics.com/viewtopic.php?p=466008#466008
> >> 
> >> 
> >> 
> >> 
> >> Attachments: 
> >> 
> >> http://forums.matronics.com//files/rotax_912_80__cylinder_2_downpipe_16
0.jpg
> >> 
> >> 
> >> 
> >> 
> >> 
> >> 
> > 
> > 
> > 
> > 
> > 
> 
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