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Starter Woes

 
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peter(at)mather.com
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PostPosted: Sun Feb 03, 2008 11:53 am    Post subject: Starter Woes Reply with quote

Hi all

I've got a Magnaflite MZ6222 starter on my IO-320, Odyessy PC680 battery, #2
welding cable from battery to master contactor and to firewall earth (15"
and 12" respectively), 14" copper braid from firewall earth to sump bolt at
rear of engine, 6" copper bus bar from master contactor to starter
contactor, 24" #4 Tefzel from starter contactor to starter and am having
problems as follows.

The engine has very good compressions and a new bottom end so is tight but
easy enough to turn over by hand. Symptoms are that the starter finds it
very hard to get the engine over the first compression even when the engine
is warm, but when turning rotates the prop very very fast. The prop is wood
so very little flywheel effect.

The starter was "as new" second hand and has no obvious faults.

Questions: Are these symptoms typical of magnaflites in general or could
mine be faulty? If so what is a decent starter (must be short version as the
fuel feed from the injector to the flow divider runs behind the starter)
that doesn't need engine mods or rewiring. Alternatively how can I diagnose
if I'm losing voltage somewhere and/or check the starter? All connections
are checked and good and runs as short as possible.

Any ideas/suggestions gratefully received

Best regards

Peter


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peter(at)sportingaero.com
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PostPosted: Sun Feb 03, 2008 2:44 pm    Post subject: Starter Woes Reply with quote

Peter,

Sounds like your starter is at fault. Skytec have a very good trouble
shooting page on their website
(http://www.skytecair.com/Troubleshooting.htm), but I suspect you will
be in for a new starter. You could always fit a Skytec or B&C starter
for around $500 + all the usual. If you go the Skytec route, be aware
that their latest "straight" offering (I think the 149-NL) is longer
than the others (HT, PM or LS models), so you will need to ensure you
have sufficient room.

Peter

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