|
-
POSTING RULES

-
Donate yearly (please).
-
Advertise in here!
-
Today's Posts
|
Insert Pics
|

08-09-2016, 03:08 PM
|
 |
|
|
Join Date: Jun 2007
Location: Atlanta
Posts: 745
|
|
I started a thread on this exact subject, Feb. 2015. There are some 3 pages of answers. Click on my avatar, go to threads created by donaziza, scroll down to the 7th thread, "Fretting on a sky tec starter"
|

08-09-2016, 06:09 PM
|
|
|
|
Join Date: Mar 2007
Location: Sonoma County
Posts: 3,821
|
|
Quote:
Originally Posted by donaziza
I started a thread on this exact subject, Feb. 2015. There are some 3 pages of answers. Click on my avatar, go to threads created by donaziza, scroll down to the 7th thread, "Fretting on a sky tec starter"
|
Here it is....... http://www.vansairforce.com/communit...d.php?t=122698
__________________
VAF #897 Warren Moretti
2019 =VAF= Dues PAID
|

12-02-2016, 10:00 PM
|
|
|
|
Join Date: Aug 2009
Location: Redding,Ca
Posts: 633
|
|
Skytec design change
I have had to send my Skytec 149 in for repair for loose threads and /or coming apart 3 times. I had heard they had effected a fix for this and today I noticed for the first time that the new unit they sent me last has a design change. The old design used long screws that passed through 3 sections of the starter. My new one uses short screws that thread into the center section to attach the end cap to the center section, and I assume 2 more short screws threaded in from the other end.
I hope it works, so far so good at 35 hrs.
Tim Andres
Last edited by tim2542 : 12-02-2016 at 10:03 PM.
Reason: Typo
|

12-03-2016, 05:03 AM
|
|
|
|
Join Date: Sep 2007
Location: Central IL
Posts: 5,516
|
|
Quote:
Originally Posted by tim2542
I have had to send my Skytec 149 in for repair for loose threads and /or coming apart 3 times. I had heard they had effected a fix for this and today I noticed for the first time that the new unit they sent me last has a design change. The old design used long screws that passed through 3 sections of the starter. My new one uses short screws that thread into the center section to attach the end cap to the center section, and I assume 2 more short screws threaded in from the other end.
I hope it works, so far so good at 35 hrs.
Tim Andres
|
Tim, could you post a picture when able? Thanks . . .
Got it, That helps.
__________________
Bill
RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
Last edited by BillL : 12-03-2016 at 08:29 AM.
|

12-03-2016, 05:10 AM
|
 |
|
|
Join Date: Dec 2005
Posts: 917
|
|
Data point: just did the annual on the Arrow, two year old 149-NL with 430 hours, still solidly together, no fretting. Same for the rebuild previously mentioned on the RV, 200 hours now and all good as of last oil change.
__________________
Mike C.
Sierra Nevada
RV-6A bought flying
|

12-03-2016, 08:11 AM
|
|
|
|
Join Date: Aug 2009
Location: Redding,Ca
Posts: 633
|
|
It's not a great pic or I would have posted it yesterday. You can see the threaded screw hole boss cast in the case near the drive gear. The old one had very long screws that passed all the way through the center casting into the next section. I think it was the length of these screws that allowed the torque from the starter to "rack" the assembly and eventually loosen the screws, but I'm no engineer. This definently a change from the 2 previous starters.
Tim Andres
Note, this is on a pusher and yes I see there is a rivet missing.
Last edited by tim2542 : 12-03-2016 at 08:18 AM.
|

01-11-2017, 05:32 PM
|
 |
|
|
Join Date: Oct 2006
Location: Brooksville, FL
Posts: 356
|
|
Skytec 149-NL Starter issue
While changing the oil today, I noticed that my Skytec 149-NL starter had an issue with the bolts holding the starter motor to the starter gear drive. This starter has 1350 Hrs on it with no issues. I removed the starter from the engine, and removed the two 8 mm hex head screws that hold the motor and gear section together. After cleaning them up, I locktited the screws into place again with Locktite #680, then bent over the metal tabs onto the bolt flats.
One point of interest is that one of the 8mm bolts required a ground down socket (VERY thin wall on the socket) to remove, and later tighten that bolt. The other bolt didn't require the thin-wall socket.
I'll examine it again on the next oil change to see if it's loosened up again....
Quote:
Originally Posted by RONSIM
Working with a friend on his -7A --- less than 250hrs total, and on his second Skytec starter. The first was replaced under warranty because of looseness between the starter motor and the gear drive. We checked his starter yesterday, during an oil change, and discovered the same loose condition. This starter had the same issue on last oil change and the (2) connecting bolts were tightened and safetied.
What we found, this time, after removing one of the bolts, is that the motor housing bolt holes are significantly larger than the bolt. There are only (2) small (3/16?) bolts holding the motor to the gear drive and the bolt we removed showed significant fretting/stretching/deformed. I believe that the torque is allowing the motor to shift due to the larger hole in the motor flange and wearing at the bolt.
This is the "NL" version of the starter. I was wondering if anyone else has seen this issue? We are placing a call to the Skytec folks on Monday to discuss the issue.
Ron
|
__________________
Fred Stucklen
wstucklen1@cox.net
RV-7A N924RV Flying (1825 Hrs & counting)
RV-6A N926RV 875 Hrs (Sold)
RV-6A N925RV 2008 Hrs (Sold)
|

01-11-2017, 06:05 PM
|
 |
|
|
Join Date: Apr 2007
Location: Oakland, CA
Posts: 349
|
|
I *just* installed a new NL starter on my RV-7, I sure hope it turns out to be the new improved version and trouble free. I have exactly two (very quick) starts on it and no flights yet...
__________________
Ed Neffinger
KCCR
RV7a
RV7
RV8
ATP, CFIA, II, ME, G
|

01-11-2017, 07:45 PM
|
|
|
|
Join Date: Aug 2009
Location: Redding,Ca
Posts: 633
|
|
See posts 23 & 26 above.
This new design failed in less than 40 hours (came loose again). Once again skytec replaced it free after it was out of warranty.
This time they told me it had been "improperly assembled"
It will remain to be seen if the excellent CS continues with the new owner Hartzel?, I hope so as I expect to need it just one more time.
Tim Andres
|

01-19-2017, 05:05 PM
|
|
|
|
Join Date: Jun 2007
Location: palm coast fl.
Posts: 945
|
|
Starter
I'm on my second Sky Tec starter and now it's going back for warranty. Spoke with them today , the latest version Does Not have tab washers on the bolts ( as per my phone conversation). The Serial number code is the first two numbers are the week and the next two are the year , not sure what month they started the latest "Fix" . The one I'm returning is 4015xxxxx
__________________
Rv8
N 666 TA
First Flight 2-3-2015 🚀
2017 donation paid
|
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 02:26 AM.
|