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  #1  
Old 10-23-2015, 06:28 PM
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Jetguy Jetguy is offline
 
Join Date: Aug 2008
Location: Texas, Fort Worth
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Default Silent Hektik Voltage Regulator Install!

A little back ground on my setup. First flight was 2010. 2009 Rotax engine and Ducati voltage regulator. Dual Dynon D180/D100 screens, NAV and landing lights installed. My old voltage regulator lasted 758 hours at which time I was able to acquire a Silent Hektik(now known as SH) regulator from a friend who travels often to Europe. The old Ducati didn't develop much voltage at low power settings but at/above 5000 RPM it developed about 13.6 volts and at 2500 RPM it developed about 12.3 volts. Now with the SH at 5000 RPM it developes about 13.8 to 14 volts and at 2500 RPM it now developes about 13.4 volts. I installed the SH using the original installation setup as the Ducati with a few exceptions. First the 1/4-28 bolts would not work because there was not enough clearance along the side of the hole in the regulator to slide a socket over the head of the bolt. So I used a 1/4-28 socket cap screws instead. Second I went against the trend of using heat sink grease under the regulator and actually lifted it up about a 1/16 inch above the metal shelf by putting thick metal washers under the regulator bolts. I've spent a lot of flying hours in the 12 and that stanless steel firewall gets very hot. Inflight sometime try taking your shoes off and put your feet on the fire wall. Third I grounded the regulator directly from the battery as well as off the engine per Bill's suggestion. The SH is almost the exact same size as the Ducati. The holes need to be slightly enlarged for the 1/4-28 bolts but they line up perfectly with the original bolt pattern. The plug that holds the wires for the Ducati is exactly the same for the SH, simply unplug the Ducati and plug in the SH. The bottom of the SH is metal and the resin circuit board is completely in cased in the metal housing. The label on the SK says 14 volts 47A. So I'm not sure you will be able to get more amps out of the SH, maybe Joe Gores can address this. I won't be testing this because I won't be changing my avionics anytime soon. But I do think when only pulling 18 amps it won't create as much internal heat as the Ducati. The SH seems like a well built unit. Only time will tell, I'll keep everyone updated as we put hours on the unit. Here's a few pictures of the unit and install.




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RV12 N1212K
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Last edited by Jetguy : 10-23-2015 at 06:42 PM.
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  #2  
Old 10-23-2015, 07:53 PM
Harvey rv12 Harvey rv12 is offline
 
Join Date: Apr 2015
Location: Seattle
Posts: 140
Default where can i get one ??

Any hope of us other 12 owners getting our hands on one ??.

thx
Tom O.
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  #3  
Old 10-23-2015, 08:39 PM
rjtjrt rjtjrt is offline
 
Join Date: Mar 2006
Location: Australia
Posts: 685
Default

Re sourcing Silent Hektik F4112 for USA, possibly this motor cycle trader in UK would source and ship them to USA.

http://www.motoguzzisales.co.uk/index.htm

They do ship another (different) Silent Hektik part all over the world according to their site. Possibly they could obtain the F4112 and ship to US?

Last edited by rjtjrt : 10-23-2015 at 09:29 PM.
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  #4  
Old 10-23-2015, 10:13 PM
Mich48041 Mich48041 is offline
 
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Location: Riley TWP MI
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Default

Quote:
So I'm not sure you will be able to get more amps out of the SH
The Rotax permanent magnet alternator (dynamo) is the limiting factor. If the dynamo is loaded to its maximum, it could get very warm. Excess heat will shorten its life. ASTM standards limit alternator output to 80 percent of its maximum capacity.
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Old 01-20-2017, 01:36 AM
E. D. Eliot E. D. Eliot is offline
 
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Location: San Pedro
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Default Your experience please

John, assuming that you have used this VR for more than one year, could you up-date this discussion with a report on ts performance so far? Sure sounds good.
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  #6  
Old 01-20-2017, 09:02 AM
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Jetguy Jetguy is offline
 
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The SH is still working great. I think I have over 100 hours on it.
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RV12 N1212K
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RV14 Wing, arrived and building at Rdog's new Hanger at 16X
S/N 140014
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  #7  
Old 01-20-2017, 12:31 PM
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Phantom30 Phantom30 is offline
 
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Quote:
Originally Posted by Harvey rv12 View Post
Any hope of us other 12 owners getting our hands on one ??.

thx
Tom O.
Do a forum search.....there is a motorcycle shop in UK that will send them to US. That is where I got mine.
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  #8  
Old 01-20-2017, 01:27 PM
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MacPara MacPara is offline
 
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Quote:
Originally Posted by Jetguy View Post
The SH is still working great. I think I have over 100 hours on it.
Dito. Mine just reached a 100 hours, too. Here's a write-up of my installation and the slight changes about the cooling that I made.
It is working flawlessly ever since I put it in.
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  #9  
Old 01-20-2017, 03:37 PM
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Jetguy Jetguy is offline
 
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Just got back from hangar, 204 hours on SH so far!
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RV12 N1212K
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1020 Hours as of 9/30/2017
Jetguy@att.net
RV14 Wing, arrived and building at Rdog's new Hanger at 16X
S/N 140014
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  #10  
Old 01-21-2017, 02:54 PM
Dave12 Dave12 is offline
 
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I just heard from the Moto Guzzi shop in the U.K. and they will ship the unit to the states. The price is $230 plus $50 shipping.
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