Re: Europa-List: Starter Diode

[david park <dpark748@me.com>]

Bud,
Still confused as Europa Manual wiring diagram shows Anode to Earth? Not swi
tch.
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 i
s the start solenoid is looking for 12 volts.  Of course, the solenoid must b
e grounded.
> Most mistakes are the ground is left off the solenoid when putting on the d
iode.  Another problem is guys don=99t insulate the anode side of the d
iode and it shorts. 
>  
> The Rotax manual doesn't comment on the diode.  But it is an accepted prac
tice to extend the life of the contacts in the starter solenoid.  The Europa
 Electrical Chapter  25 advises to use an IN5404 but any will do.
>  
> IN5404
> silicone diode is shown above.  Anode or plus side is on the starter switc
h tab and the cathode or negative goes to the ground bolt holding on the sta
rter solenoid.  I use at least a #18 or 16 wire from the solenoid fastening b
olt to the main firewall ground.
>  
> Best Regards,
> Bud Yerly
>  
> -----Original Message-----
> From: owner-europa-list-server@matronics.com <owner-europa-list-server@mat
ronics.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 de
scribed 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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