---------------------------------------------------------- RV10-List Digest Archive --- Total Messages Posted Mon 07/31/17: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:16 PM - PlanePower - won't repair their own alternators. B&C will. (Tim Lewis) 2. 03:19 PM - MT prop governor failure - results of discussion with MT rep at OSH (Tim Lewis) 3. 04:30 PM - Re: PlanePower - won't repair their own alternators. B&C will. (David Jones) 4. 05:19 PM - Re: MT prop governor failure - results of discussion with MT rep at OSH (Kelly McMullen) 5. 07:00 PM - Re: MT prop governor failure - results of discussion with MT re (kearney) 6. 07:16 PM - Re: Re: MT prop governor failure - results of discussion with MT re (Kelly McMullen) ________________________________ Message 1 _____________________________________ Time: 03:16:57 PM PST US From: Tim Lewis Subject: RV10-List: PlanePower - won't repair their own alternators. B&C will. At about 800 hours tach time, 950 hrs hobbs time, my Planepower alternator dropped to 1/2 output (26-28 Amp) maximum output enroute to OSH last week. I spoke to PlanePower's reps at OSH last week (including the alternator product line lead). Here's the summary: - PlanePower suggests it's either a diode failure, or (more likely) a failure of part of the stator (due to a known issue with PlanePower alternators manufactured in the past). - PlanePower won't repair this alternator. - PlanePower won't repair the new version that they currently sell for RV's. "It's not worth our time." - PlanePower won't offer any consideration or discount for those who purchased an alternator that failed. This is consistent with other reports I've heard regarding Hartzell Engine Technology (PlanePower owner) customer service. So I spoke to B & C about their alternator. Yes, they offer repair service. Yes, they'll overhaul or IRAN their alternator. I bought a B&C alternator and external controller at OSH. I'd be better off right now if I'd just spent the extra money on a B&C in the first place. -- Tim Lewis -- HEF (Manassas, VA) A&P RV-6A N47TD -- 1104 hrs - sold RV-10 N31TD -- 960 hrs ________________________________ Message 2 _____________________________________ Time: 03:19:00 PM PST US From: Tim Lewis Subject: RV10-List: MT prop governor failure - results of discussion with MT rep at OSH As some have noted, MT's service bulletin 31 (http://www.mt-propeller.com/pdf/sbs/sb31.pdf) says the MT governor flyweight failure problem applies to engines "modified with electronic ignitions or higher compression pistons." At least one of the RVs that had an MT governor fail had dual magnetos and stock pistons. It's been reported on VAF that this has been brought to MT's attention. MT has not changed the service bulletin in the intervening months. Based on MT's unwillingness to honestly describe the failure condition in their service bulletin, I lost confidence in MT and pulled the MT governor from my plane in January. I replaced it with a PCU 5000, which has noticeably better performance than the MT governor (the PCU doesn't have the rpm hunting that the MT had). At OSH this year, I spoke with MT about the fact that their SB is misleading, in that there have been failures in engines without either electronic ignition or high compression pistons. It was amazing to hear the blamestorming from the German-accented MT rep at OSH. "What about McCauley governor failures" "What about Whirlwind propeller failures." I pointed out that the issue at hand was MT's failure to publish an honest, complete service bulletin. The MT rep continued to attack other products, rather than address MT's Service Bulletin shortcomings. I'm glad I got rid of the MT governor on my plane several months ago. Based on the behavior of MT on this issue, I'll advise all prospective builders I meet not to use MT products. -- Tim Lewis -- HEF (Manassas, VA) A&P RV-6A N47TD -- 1104 hrs - sold RV-10 N31TD -- 960 hrs ________________________________ Message 3 _____________________________________ Time: 04:30:03 PM PST US From: David Jones Subject: Re: RV10-List: PlanePower - won't repair their own alternators. B&C will. I have 1100 hours on my B&C alternators and no problem. This alternator is used by many companies flight schools. Get the Best, David Sent from my iPad > On Jul 31, 2017, at 6:15 PM, Tim Lewis wrote: > > > At about 800 hours tach time, 950 hrs hobbs time, my Planepower alternator dropped to 1/2 output (26-28 Amp) maximum output enroute to OSH last week. I spoke to PlanePower's reps at OSH last week (including the alternator product line lead). Here's the summary: > > - PlanePower suggests it's either a diode failure, or (more likely) a failure of part of the stator (due to a known issue with PlanePower alternators manufactured in the past). > - PlanePower won't repair this alternator. > - PlanePower won't repair the new version that they currently sell for RV's. "It's not worth our time." > - PlanePower won't offer any consideration or discount for those who purchased an alternator that failed. > > This is consistent with other reports I've heard regarding Hartzell Engine Technology (PlanePower owner) customer service. > > So I spoke to B & C about their alternator. Yes, they offer repair service. Yes, they'll overhaul or IRAN their alternator. > > I bought a B&C alternator and external controller at OSH. I'd be better off right now if I'd just spent the extra money on a B&C in the first place. > > -- > Tim Lewis -- HEF (Manassas, VA) > A&P > RV-6A N47TD -- 1104 hrs - sold > RV-10 N31TD -- 960 hrs > > > > ________________________________ Message 4 _____________________________________ Time: 05:19:50 PM PST US Subject: Re: RV10-List: MT prop governor failure - results of discussion with MT rep at OSH From: Kelly McMullen I agree that the service bulletin is misleading. However, while my engine is pure stock, with 8.5:1 pistons and Bendix S1200 mags, MT both acknowledged my MT governor was in the group subject to failure, even though it is an 860-5, not an 860-3; and they performed the service bulletin on it for me. My cost was only shipping. The revised governor does have crisper control of rpm. Note that a significant portion of both brands are manufactured at the same place, by the same company. Kelly On 7/31/2017 3:17 PM, Tim Lewis wrote: > > As some have noted, MT's service bulletin 31 > (http://www.mt-propeller.com/pdf/sbs/sb31.pdf) says the MT governor > flyweight failure problem applies to engines "modified with electronic > ignitions or higher compression pistons." At least one of the RVs that > had an MT governor fail had dual magnetos and stock pistons. It's been > reported on VAF that this has been brought to MT's attention. MT has not > changed the service bulletin in the intervening months. > > Based on MT's unwillingness to honestly describe the failure condition > in their service bulletin, I lost confidence in MT and pulled the MT > governor from my plane in January. I replaced it with a PCU 5000, which > has noticeably better performance than the MT governor (the PCU doesn't > have the rpm hunting that the MT had). ________________________________ Message 5 _____________________________________ Time: 07:00:10 PM PST US Subject: RV10-List: Re: MT prop governor failure - results of discussion with MT re From: "kearney" Hi Kelley When this debacle started I spoke to APS and confirmed that the PCU5000x and MT governors have no parts in common. They are different designs. If I recall the conversation correctly, when MT started with their own design, they also started their own manufacturing. Cheers Les C-GCWZ Flying C-GROK Some assembly required Read this topic online here: http://forums.matronics.com/viewtopic.php?p=471381#471381 ________________________________ Message 6 _____________________________________ Time: 07:16:54 PM PST US From: Kelly McMullen Subject: Re: RV10-List: Re: MT prop governor failure - results of discussion with MT re Talk to Myron, he gained much expertise from his debacle with governor failure. MT originally did not make their own governor. My understanding is that when they started making their own, that they still purchase some of the parts from the Czech supplier that had been producing them. If you physically compare to PCU, they are extremely similar. -sent from the I-droid implanted in my forearm On Mon, Jul 31, 2017 at 6:59 PM, kearney wrote: > > Hi Kelley > > When this debacle started I spoke to APS and confirmed that the PCU5000x and MT governors have no parts in common. They are different designs. If I recall the conversation correctly, when MT started with their own design, they also started their own manufacturing. > > Cheers > > Les > > C-GCWZ Flying > C-GROK Some assembly required > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=471381#471381 > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv10-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV10-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/rv10-list Browse Digests http://www.matronics.com/digest/rv10-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.