Re: Europa-List: Starter Diode

[Alan Burrill <alanb@dpy01.co.uk>]

Are you sure the diode is not faulty?

You can check it with an meter set to read resistance. Should be high resist
ance one way and low the other.

Have you tried connecting it the other way round?

Alan

Sent from my iPad

> On 7 Jun 2021, at 09:02, david park <dpark748@me.com> wrote:
> 
> =EF=BBBud,
> Still confused as Europa Manual wiring diagram shows Anode to Earth? Not s
witch.
> Regards
> Dave Park
> 
> 
>>> On 7 Jun 2021, at 01:06, Bud Yerly <budyerly@msn.com> wrote:
>>> 
>> =EF=BB
>> Dave,
>> I didn't see anyone commented on your diode.
>>  
>> Pretty much any diode will do.  If you get it backwards, the saving grace
 is the start solenoid is looking for 12 volts.  Of course, the solenoid mus
t be grounded.
>> Most mistakes are the ground is left off the solenoid when putting on the
 diode.  Another problem is guys don=99t insulate the anode side of th
e diode and it shorts. 
>>  
>> The Rotax manual doesn't comment on the diode.  But it is an accepted pra
ctice to extend the life of the contacts in the starter solenoid.  The Europ
a Electrical Chapter  25 advises to use an IN5404 but any will do.
>>  
>> IN5404
>> <image001.png>
>> 
>> silicone diode is shown above.  Anode or plus side is on the starter swit
ch tab and the cathode or negative goes to the ground bolt holding on the st
arter solenoid.  I use at least a #18 or 16 wire from the solenoid fastening
 bolt to the main firewall ground.
>>  
>> Best Regards,
>> Bud Yerly
>>  
>> -----Original Message-----
>> From: owner-europa-list-server@matronics.com <owner-europa-list-server@ma
tronics.com> On Behalf Of david park
>> Sent: Wednesday, June 02, 2021 2:44 PM
>> To: europa-list@matronics.com
>> Subject: Europa-List: Starter Diode
>>  
>>  
>> I fitted a starter Diode and engine would not start. Orientation was as d
escribed with band end cathode on starter terminal and other end to earth?
>> Have I got wrong diode.
>> Any advice appreciated
>>  
>> Dave Park G-LDVO
>>  
>>  
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