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                           Yak-List Digest Archive
                                      ---
                     Total Messages Posted Fri 04/16/04: 3
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Today's Message Index:
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     1. 12:22 AM - over volts  (Mark Jefferies YAK UK Ltd)
     2. 03:36 AM - Re: Overvoltage problem  (A. Dennis Savarese)
     3. 04:48 PM - Genna Training  (Rodger Modglin)
 
 
 
________________________________  Message 1  _____________________________________


Time: 12:22:59 AM PST US
From: "Mark Jefferies YAK UK Ltd" <mark@yakuk.com>
Subject: Yak-List: over volts

--> Yak-List message posted by: "Mark Jefferies YAK UK Ltd" <mark@yakuk.com>

When the carbon pile get to the end of its life it will over volt.


--> Yak-List message posted by: Edwin Curry <EACurry@ev1.net>

The overvoltage relay keeps triping on my Yak 52. I have tried a friends
voltage regulator and the problem is still there. I can reset the
overvoltage relay and start the engine. Around 50% rpm the voltage rises
above 29 and trips the relay. Does anybody have any ideas as to what
might be wrong? I know the borrowed regulator was working fine in the
other Yak. There is a voltage adjustment screw under your left arm in
the front cockpit. I have tried adjusting this with no effect on voltage
what so ever. Does anybody have any ideas?

Edwin


Best regards
Mark Jefferies

: Managing director YAK UK Ltd
Little Gransden Airfield, Sandy, Beds SG19 3BP, England.
( +44 (0)1767 651156 Office + 651157 fax
( +44 (0)7785 538 317 Mobile
: Conditions/ terms of business






________________________________  Message 2  _____________________________________


Time: 03:36:38 AM PST US
From: "A. Dennis Savarese" <adsavar@gte.net>
Subject: Re: Yak-List: Overvoltage problem

--> Yak-List message posted by: "A. Dennis Savarese" <adsavar@gte.net>

Most likely, the problem lies inside the gray box on the firewall.  The
large relay in the upper left hand side of the box has a set of contacts
that sometimes do not open due to corrosion or arcing.  You may want to
remove this relay and check the contacts under the little cover inside the
big relay.
Dennis

----- Original Message ----- 
From: "Edwin Curry" <EACurry@ev1.net>
Subject: Yak-List: Overvoltage problem


> --> Yak-List message posted by: Edwin Curry <EACurry@ev1.net>
>
> The overvoltage relay keeps triping on my Yak 52. I have tried a friends
> voltage regulator and the problem is still there. I can reset the
> overvoltage relay and start the engine. Around 50% rpm the voltage rises
> above 29 and trips the relay. Does anybody have any ideas as to what
> might be wrong? I know the borrowed regulator was working fine in the
> other Yak. There is a voltage adjustment screw under your left arm in
> the front cockpit. I have tried adjusting this with no effect on voltage
> what so ever. Does anybody have any ideas?
>
> Edwin
>
>






________________________________  Message 3  _____________________________________


Time: 04:48:04 PM PST US
From: "Rodger Modglin" <rmodg@hotmail.com>
Subject: Yak-List: Genna Training

--> Yak-List message posted by: "Rodger Modglin" <rmodg@hotmail.com>

I highly recommend traning by Genna. If you want to get comfortable with the 
YAK 52, he is the guy.
Rodger Modglin