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joeing701(at)simnet.is
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 Posted: Fri Aug 15, 2014 9:45 am Post subject: Clamp for the carb rubber socket |
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Hello Rotax list members.
Does anyone know where I can buy the clamp for the carburetor rubber socket on the Rotax 912 engine. I do have the rubber sockets but no clamp. Do not want to order the new rubber just to get the clamp.
Johann G.
Iceland.
.
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John Hauck
Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)
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| Posted: Fri Aug 15, 2014 10:14 am Post subject: Clamp for the carb rubber socket |
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Johann:
Contact Ronnie Smith at South Mississippi Light Aircraft. He'll send you
one.
http://www.flysmla.com/
Hope all is well in Iceland.
john h
mkIII
Titus, Alabama
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John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama |
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Roger Lee
Joined: 10 Jan 2006
Posts: 1464
Location: Tucson, Az.
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| Posted: Fri Aug 15, 2014 12:25 pm Post subject: Re: Clamp for the carb rubber socket |
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How do you have new sockets without a new clamp? Rotax carb sockets come with clamps.
The old clamps are gold and the new clamps are silver. You can use the old clamp if you put an 8mm spacer in on the screw. This will keep you from over tightening the clamp.
I see you live in Iceland so some of the below may not apply.
I hope these new sockets aren't JBM carb sockets or some other aftermarket part. Looking the same and being the same are two different things. I have seen several lately and they are not up to standard. The rubber gets too soft when hot, the carbs do not snap into place near as well. I just had a Sky Ranger in my shop. The clamps were down even past the 8mm safe stop. I put my fingers against the carb while I was checking something and it came out of the socket way to easily. I did the same to the other side and it did the same. I showed the owner the difference on a Rotax carb flange and he made me change his out back to a Rotax part. If you squeeze the out side ends of a JBM socket it is very soft and squeezable when hot and the Rotax is not. The Rotax rubber carb flange has deeper recessed groves so the carb seats in much tighter and doesn't easily push out of the socket. The Rotax socket holds the carb in better than the JBM even without the use of a clamp on the Rotax flange.
There will be a new article out on the Rotax-Owner forum blog shortly about liability and aftermarket parts. It is worth reading. Even if you own an Experimental aircraft(in the US) you can still be held liable for
sub-standard parts. It would be very easy to prove and hold you the owner up for at least a partial liable payout. The MFG of the part will be on the hook, but so would you.
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_________________
Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056 |
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John Hauck
Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)
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| Posted: Fri Aug 15, 2014 2:17 pm Post subject: Clamp for the carb rubber socket |
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I hope these new sockets aren't JBM carb sockets or some other aftermarket
part. I have seen several lately and they are not up to standard.
Roger Lee
I fly a Kolb MKIII pusher with a 912S. I use JBM carb sockets and his
stainless steel exhaust springs (on a Titan exhaust system). The SS springs
are great. I bought a set of 5 (1 for a spare) several years ago to replace
the Rotax springs I had been using. Couldn't keep Rotax springs from
breaking.
The JBM sockets have been on the engine for a few years and a couple
trans-continental flights. They seem to be performing as good as the
original Rotax sockets. I had to change out the Rotax sockets after a few
years because they started failing. I first noticed black streaks on top
each intake manifold. Took a while to figure out the streaks were being
made by the decomposing Rotax sockets which had also developed deep cracks.
So far the JBM sockets are staying together.
I have to check to see if my JBM sockets are "soft and squeezable" when hot,
and if they are going to fall off when I least expect it. Getting ready to
fly from Alabama to the Rock House near Burns Junction, Oregon. I don't
want to lose a carb.
For the most part I do use Rotax repair parts. A few items I do not:
-Fram Tough Guard 3614 or 3600 oil filters (I can hear the gasps from here).
Been flying these since the beginning.
-VDO oil pressure sending units. Not the one that came in the engine.
-NGK Iridium Spark Plugs DCPR8EIX. I flew from Alabama to Sun and Fun this
year, plus local flying. Performance seems to be about the same. I haven't
had a chance to see if they help performance or not, but will get a better
look at them on my flight to Oregon and back.
I have had good luck with the 912 series engines. I have been flying them
on my present airplane since 1994. After more than 3,200.0 hours I have
never had an engine failure. Wish I could have said that about the two
strokes I flew.
john h
mkIII
| | - The Matronics RotaxEngines-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama |
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