Today's Message Index:
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1. 02:12 AM - Re: Rotax 912 Carburetor - Possible to purchase a few O-Rings? (graeme bird)
2. 02:55 AM - Re: Re: Rotax 912 Carburetor - Possible to purchase a few O-Rings? (Pete Lawless)
3. 09:08 AM - Airmaster thrust bearing witness marks (jonathanmilbank)
Message 1
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| Subject: | Re: Rotax 912 Carburetor - Possible to purchase a few O-Rings? |
This old link no longer works; would the motorworks part be FUA35001J?
Bing carb for BMW R45 Pre 1981? Skydrive are out of stock of carb refurb kits
My 340hr/6 year old 912ULS missed a fraction of a beat a couple of times on Sat
after running smoothly for over an hour, and spaced by maybe 20 minutes. Warm
air, high presume no cloud and 3000ft in steady cruise, fuel filtered, filter
changed recently, service 40hrs ago, fuel esso supreme. Wondered if it could
be air pocket?
I'll change plugs, check plug sockets, carbs, filter, check fuel drain, clean air
filter.
Suspect carb/fuel flow debris issue.
--------
Graeme Bird
G-UMPY - Mono Classic/XS FFW 912S, Woodcomp 3000/3W CS, trutrak Gemini 2 axis
AP, PAW, PFLARM core, ads-b out, 8.33khz, mode S, FP-5, Aera500, SD on Nexus,
SmartA3
325 hours & 6 years on the Mono, 930 total
g(at)gdbmk.co.uk
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=480272#480272
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| Subject: | Re: Rotax 912 Carburetor - Possible to purchase a few |
O-Rings?
Hi Graeme
You could try MotoBins.
https://www.motobins.co.uk/displayfinal.php?function=show&subs=084&title=DIAPHRAGMS+%26+GASKETS
Pete
G-RMAC Classic #109
On 21/05/18 10:11, graeme bird wrote:
>
> This old link no longer works; would the motorworks part be FUA35001J?
> Bing carb for BMW R45 Pre 1981? Skydrive are out of stock of carb refurb kits
>
> My 340hr/6 year old 912ULS missed a fraction of a beat a couple of times on Sat
after running smoothly for over an hour, and spaced by maybe 20 minutes. Warm
air, high presume no cloud and 3000ft in steady cruise, fuel filtered, filter
changed recently, service 40hrs ago, fuel esso supreme. Wondered if it could
be air pocket?
> I'll change plugs, check plug sockets, carbs, filter, check fuel drain, clean
air filter.
> Suspect carb/fuel flow debris issue.
>
> --------
> Graeme Bird
> G-UMPY - Mono Classic/XS FFW 912S, Woodcomp 3000/3W CS, trutrak Gemini 2 axis
AP, PAW, PFLARM core, ads-b out, 8.33khz, mode S, FP-5, Aera500, SD on Nexus,
SmartA3
> 325 hours & 6 years on the Mono, 930 total
> g(at)gdbmk.co.uk
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=480272#480272
>
>
Message 3
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| Subject: | Airmaster thrust bearing witness marks |
My Airmaster AP308 propeller hub has served me well for about 17 years, fitted
to 3 different Rotax engines and with 4 different sets of Warp Drive blades attached.
The latest set of replacement blades have done over 250 hours and I did
a routine servicing and inspection yesterday.
As always after removing each blade, I slide the thrust bearing assembly and spacer
away from the blade root spigot to reveal the surface of the ferrule and
look closely for a witness line caused by the inner edge of the bearing assembly.
On one of the ferrules there is no visible line. On the next, scratching back and
forth with my fingernail across a faint line all the way around the ferrule
circumference doesn't result in any groove being felt. On the third, the line
is more easy to see and for about 10% of the circumference my fingernail detects
a very slight groove, maybe less than half a millimetre deep.
On previous sets of blades, I can recall deeper grooves being seen and felt around
much of the circumference on all of the blades. Anyone I've ever asked about
this doesn't seem to have anything to offer, by way of an opinion on how much
of a groove is acceptable and whether it constitutes a significant stress riser.
So who of you has similar observations and what's your feeling about it?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=480277#480277
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