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
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| Subject: | 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
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| Subject: | 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
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| Subject: | Re: 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 <TimRVator@comcast.net> 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
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| Subject: | Re: MT prop governor failure - results of discussion with |
MT rep at OSH
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
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| Subject: | Re: MT prop governor failure - results of discussion with MT |
re
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
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| Subject: | 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 <kearney@shaw.ca> 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
>
>
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