Today's Message Index:
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1. 12:34 PM - Taking off from a friends driveway (Larlaeb)
2. 03:49 PM - Electrical Issue With My VW Powered MKIIIC (Rick Neilsen)
3. 07:01 PM - Re: Electrical Issue With My VW Powered MKIIIC (Charlie England)
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| Subject: | Taking off from a friends driveway |
A friend snapped some shots of me leaving his house the other day. Hopefully I
made them small enough.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=425623#425623
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Message 2
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| Subject: | Electrical Issue With My VW Powered MKIIIC |
It is finally Fixed.
Thanks for everyone's input on the issue I was having with my VW powered
Kolb MKIIIC. You may not remember but I had a ammeter that started
fluttering from -20 amps to + 20 amps. Turns out it was the primary fuel
pump. Since it just started doing it after 12 years it was likely it was in
short failure mode.
About seven years ago I replaced the Faucet back up fuel pump when it
stopped without warning but it was just a back up pump so no big deal.
The new replacement pump is a Carter automotive inline pump. This pump
doesn't allow fuel to pass through it when turned off so I had to re plumb
my fuel system to put the pumps in parallel with a check valve on the
Faucet pump.
Any way it is fixed. Now I need to go back and undo some of the changes I
did to track down the problem.
In the process I also changed the battery to one of the new Lithium batteries
like Aircraft Spruce sells called AeroVoltz it is a 15 AMP battery and I
usually use a cheap 12 AMP lawn mower battery. Any way the battery is more
than 10 lb less and boy does it spin the starter.
Rick Neilsen
Redrive VW Powered MKIIIC
Message 3
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| Subject: | Re: Electrical Issue With My VW Powered MKIIIC |
On 6/27/2014 5:48 PM, Rick Neilsen wrote:
> It is finally Fixed.
>
> Thanks for everyone's input on the issue I was having with my VW
> powered Kolb MKIIIC. You may not remember but I had a ammeter that
> started fluttering from -20 amps to + 20 amps. Turns out it was the
> primary fuel pump. Since it just started doing it after 12 years it
> was likely it was in short failure mode.
>
> About seven years ago I replaced the Faucet back up fuel pump when it
> stopped without warning but it was just a back up pump so no big deal.
>
> The new replacement pump is a Carter automotive inline pump. This pump
> doesn't allow fuel to pass through it when turned off so I had to re
> plumb my fuel system to put the pumps in parallel with a check valve
> on the Faucet pump.
>
> Any way it is fixed. Now I need to go back and undo some of the
> changes I did to track down the problem.
>
> In the process I also changed the battery to one of the new
> Lithium batteries like Aircraft Spruce sells called AeroVoltz it is a
> 15 AMP battery and I usually use a cheap 12 AMP lawn mower battery.
> Any way the battery is more than 10 lb less and boy does it spin the
> starter.
>
> Rick Neilsen
> Redrive VW Powered MKIIIC
>
Hi Rick,
I've forgotten; is your VW 'electrically dependent'? If so, have you
verified how long the lithium can keep it running if you lose the
alternator? I ask, because many of the lithium starting batteries have
tons of starting power, but very limited total energy. There's a big
discussion among bigger homebuilt guys right now about how to determine
total capacity. Bob Nuckolls recently wrote a good article about the
issue in Kitplanes.
FWIW,
Charlie
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