---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Thu 06/23/16: 9 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:24 AM - Re: Grease escaping from Airmaster prop (Scudrunner) 2. 05:14 AM - Re: Grease escaping from Airmaster prop (SPURPURA) 3. 05:22 AM - Re: Grease escaping from Airmaster prop (Rick Moss) 4. 06:52 AM - Re: Re: Grease escaping from Airmaster prop (David private) 5. 08:16 AM - Re: Grease escaping from Airmaster prop (Scudrunner) 6. 08:21 AM - Re: Re: Grease escaping from Airmaster prop (Jerry Rehn) 7. 09:26 AM - Re: Re: Grease escaping from Airmaster prop (Brian Davies) 8. 01:29 PM - Re: Grease escaping from Airmaster prop (Guerner Remi) 9. 02:50 PM - Re: Grease escaping from Airmaster prop (Rick Moss) ________________________________ Message 1 _____________________________________ Time: 02:24:09 AM PST US Subject: Europa-List: Re: Grease escaping from Airmaster prop From: "Scudrunner" Curiously, I was comparing two Airmaster prop installations at the weekend. My recently fitted prop has a bead of silicon visible between the blade and "cuff", it doesn't leak grease. The other, older installation didn't have the silicone and does leak grease. I was told that there is a mod from Airmaster to cover this. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=457383#457383 ________________________________ Message 2 _____________________________________ Time: 05:14:12 AM PST US Subject: Europa-List: Re: Grease escaping from Airmaster prop From: "SPURPURA" My Airmaster slings also. Can you post a picture of the silicone seal. -------- I'D RATHER HAVE A BOTTLE IN FRONT OF ME THAN A FRONTAL LABOTAMY. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=457384#457384 ________________________________ Message 3 _____________________________________ Time: 05:22:04 AM PST US Subject: Europa-List: Re: Grease escaping from Airmaster prop From: "Rick Moss" Being a plumber, my first thought was also to silicone it up (actually, my first thought was to inhale through my teeth and advise a boiler replacement, but that was somewhat less useful). I thought that it seemed unlikely the silicone would stay in place with the g-forces involved, although a read through the Airmaster website does show a bulletin advising sealant is applied to an internal part of an earlier prop model, albeit to prevent water ingress as opposed to lubricant egress. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=457385#457385 ________________________________ Message 4 _____________________________________ Time: 06:52:46 AM PST US From: David private Subject: Re: Europa-List: Re: Grease escaping from Airmaster prop Rick you can look at mine if you want it has just been upgraded by air master Rgds David Sent from my iPhone > On 23 Jun 2016, at 13:21, Rick Moss wrote: > > > Being a plumber, my first thought was also to silicone it up (actually, my first thought was to inhale through my teeth and advise a boiler replacement, but that was somewhat less useful). I thought that it seemed unlikely the silicone would stay in place with the g-forces involved, although a read through the Airmaster website does show a bulletin advising sealant is applied to an internal part of an earlier prop model, albeit to prevent water ingress as opposed to lubricant egress. > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=457385#457385 > > > > > > > > > > ________________________________ Message 5 _____________________________________ Time: 08:16:54 AM PST US Subject: Europa-List: Re: Grease escaping from Airmaster prop From: "Scudrunner" I can't get out to the airfield until the weekend to photograph the silicone I'm hoping that Brian will post soon, as it was he who explained the mod to me (if I try, I'll probably mis-quote). And just to be clear, I know my prop is full of grease as I only recently did it's 1st 25 hour maintenance check. Perhaps flown only 6 hours since repacking the hubs with grease. Howard Read this topic online here: http://forums.matronics.com/viewtopic.php?p=457387#457387 ________________________________ Message 6 _____________________________________ Time: 08:21:15 AM PST US From: Jerry Rehn Subject: Re: Europa-List: Re: Grease escaping from Airmaster prop Mine is some 13 years old and the grease packing is in large part to keep water out, at least in the "old" style. I also received a prop cover from Airmaster so that the upward blade would be further protected during a rain. All seems to work fine. I pack mine full of grease and it slings out a fair amount at first and then as excess blows out it it becomes very little. I deal with it, wipe it off, not a big deal. The silicone upgrade I did helped some but I still get some blow by. Good news, prop has performed with out issue all these years! Jerry Sent from my iPad > On Jun 23, 2016, at 6:35 AM, David private wrote: > > > Rick you can look at mine if you want it has just been upgraded by air master > Rgds > David > > Sent from my iPhone > >> On 23 Jun 2016, at 13:21, Rick Moss wrote: >> >> >> Being a plumber, my first thought was also to silicone it up (actually, my first thought was to inhale through my teeth and advise a boiler replacement, but that was somewhat less useful). I thought that it seemed unlikely the silicone would stay in place with the g-forces involved, although a read through the Airmaster website does show a bulletin advising sealant is applied to an internal part of an earlier prop model, albeit to prevent water ingress as opposed to lubricant egress. >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=457385#457385 > > > > > > ________________________________ Message 7 _____________________________________ Time: 09:26:55 AM PST US From: "Brian Davies" Subject: RE: Europa-List: Re: Grease escaping from Airmaster prop You have flushed me out Howard! I have had the problem for about two years and have learned to live with it. When it first started I contacted Martin at Airmasters and he offered to modify the prop if I sent it back to NZ. As this involved expensive postage costs and some downtime I looked at the two mods that seem to apply- one being a ring of sealant around the blade retaining clamps external to the hub ( Howard has this on his prop), and the other being SB 11 which was to stop water ingress but it must also stop grease egress. I tried the external sealant mod and did not leave the sealant long enough before flying and it flung it out. The SB involves drilling into the base plate of the blade and filling the cavity with sealant. It seems fairly simple to do but I have not got around to it. During the last maintenance I replaced the O ring seals under the retaining ring but that made no difference. As Martin assured me it was not an indication of impending blade or hub failure and may be caused by too much grease in the hub I relaxed a bit. I might try the external bade root sealant mod again to see if that works. I have tried to attach a picture to explain. Regards Brian -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Scudrunner Sent: 23 June 2016 16:15 Subject: Europa-List: Re: Grease escaping from Airmaster prop --> I can't get out to the airfield until the weekend to photograph the silicone I'm hoping that Brian will post soon, as it was he who explained the mod to me (if I try, I'll probably mis-quote). And just to be clear, I know my prop is full of grease as I only recently did it's 1st 25 hour maintenance check. Perhaps flown only 6 hours since repacking the hubs with grease. Howard Read this topic online here: http://forums.matronics.com/viewtopic.php?p=457387#457387 ________________________________ Message 8 _____________________________________ Time: 01:29:21 PM PST US From: Guerner Remi Subject: Europa-List: Re: Grease escaping from Airmaster prop My Airmaster AP332 started to leak grease after a few hundred hours. After investigation, I found that the grease was leaking between the blade ferrule and the blade assembly retention nut. The culprit is the o-ring which seals the gap between the ferrule and the retention nut. This o-ring is submitted to friction every time the blade rotates during pitch changes and wears out with time. To replace this o-ring you need to remove the blade from the ferrule and I do not think you can put them back together without the appropriate tooling, so I decided to live with the inconvenience. My prop has more than 900 hours now and the leak rate is still acceptable to me. Remi Guerner F-PGKL ________________________________ Message 9 _____________________________________ Time: 02:50:15 PM PST US Subject: Europa-List: Re: Grease escaping from Airmaster prop From: "Rick Moss" All good gents; the staining on mine indicates that it's coming from between the blade and the ferrule, so sealant may well be the solution. I'm minded to use sikaflex after degreasing, as there's no way that's getting flung out! Read this topic online here: http://forums.matronics.com/viewtopic.php?p=457395#457395 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message europa-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Europa-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/europa-list Browse Digests http://www.matronics.com/digest/europa-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.