----------------------------------------------------------
                           RotaxEngines-List Digest Archive
                                      ---
                     Total Messages Posted Mon 04/05/10: 2
           ----------------------------------------------------------
 
 
Today's Message Index:
----------------------
 
     1. 05:41 AM - Re: Unusual Tach indications  (Duncan & Ami McFadyean)
     2. 11:19 PM - Re: Rotax air box for sale  (FrankC)
 
 
 
________________________________  Message 1  _____________________________________


Time: 05:41:43 AM PST US
From: "Duncan & Ami McFadyean" <ami@mcfadyean.freeserve.co.uk>
Subject: Re: RotaxEngines-List: Unusual Tach indications


Oft quoted:
Rotax produce a guide to tacho problems which is available on line.
One of the solutions suggested is to solder a 100 or 200 ohm resistor across
the trigger coil (or tach)  terminals.

Duncan McF.

----- Original Message ----- 
From: "John Herbert" <jherbert@vodamail.co.za>
Sent: Sunday, April 04, 2010 12:43 PM
Subject: RotaxEngines-List: Unusual Tach indications


>
> <jherbert@vodamail.co.za>
>
> I have just completed a re-build of a Kitfox IV with a 912 UL engine and 
> standard Rotax tach for a 912. After the re-build (with a new fuselage), 
> the tach reads normally only above 2200 rpm. Below this it suddenly jumps 
> approx 1000 rpm higher.  I have checked the reading with an external tach 
> and the are correct for revs above 2200. Troubleshooting has been to check 
> ground continuity to the engine and the general electrical connections on 
> the engine. If I disconnect the ground wire on the tach, the Tacho reads 
> smoothly throughout the rev range, but under-reads by about 300 rpm.
>
> I have not yet checked for dirt or corrosion under the tacho pick-up yet, 
> thatis my next job, otherwise any suggestions?
>
> John
>
> Tel. 00 27 834634865
> Fax. 00 27 865285196
>
> P O Box 879
> White River
> 1240
> South Africa
>
>
> 


________________________________  Message 2  _____________________________________


Time: 11:19:04 PM PST US
Subject: RotaxEngines-List: Re: Rotax air box for sale
From: "FrankC" <chillyz@sbcglobal.net>


Will this work on a Pulsar III?  I have a 912S Rotax and I am nearly done with
building my aircraft.   I'm not too familiar with the use of an air box assy.
Is it required on the older model Rotax?

Thanks.


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=293154#293154


 

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