Today's Message Index:
----------------------
1. 05:48 AM - Re: Firefly slide show (Richard Girard)
2. 08:45 AM - Re: Firefly slide show (Jack B. Hart)
3. 05:36 PM - NEED MORE BRAKING POWER? (Rick Lewis)
4. 06:21 PM - Re: NEED MORE BRAKING POWER? (Ellery Batchelder Jr)
5. 06:53 PM - Re: NEED MORE BRAKING POWER? (Mike Welch)
6. 09:41 PM - Best Kolb video... (Nick Cassara)
Message 1
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Subject: | Re: Firefly slide show |
Jack, I had many of the same problems with the Mikuni pumper carb on a
Zenoah engine. In my case, the problem was a very small tear in the pump
diaphragm. The solution was real simple, dump the pumper carb (Mikuni had
stopped making the carb and repair kits for it) and replace with a
conventional slide carb and separate fuel pump. Started first pull and never
had another problem.
Rick Girard
On Tue, Apr 20, 2010 at 7:58 PM, Jack B. Hart <jbhart@onlyinternet.net>wrote:
>
> Date: Tue, 20 Apr 2010 05:28:05 -0700 (PDT)
> From: william sullivan <williamtsullivan@att.net>
>
> Jack- How are you doing on the new engine? Haven't heard from you lately.
>
> Bill,
>
> Initially thought that the engine quit on the maiden flight due to
> electrical problems. Did not like the way I had mounted the voltage
> regulator and magneto kill switch. The regulator leads wiggled loose and
> shorted. Reworked the whole works to come up with a better mounting and in
> doing so saved a little weight. Also insulated the lead clips with shrink
> tubing and then wire tied them in a way to prevent the clips from ever
> coming loose. Also, to get the engine up to speed I purchased new set of
> 54
> inch IVO ultralight blades.
>
> Mounted the whole works and tried starting the engine. Found that the
> engine would run a burst after the engine was primed and that was it. I
> took the carburetor off and looked at the lower end to see if the metering
> needle valve was stuck, and replaced the regulator diaphragm and the pump
> parts. After this I have been able to get the engine to run, but now I am
> having trouble with the engine loading up on fuel upon closing the throttle
> after a high rpm run on the high speed jet. Upon cranking the engine
> without priming, the engine floods. This indicates that the metering
> needle
> is not seating, or very high flow resistance through the air filter.
>
> Tomorrow, I will remove the air cleaner and see if the flooding problem
> continues. If so, I will remove the carburetor and blow out the fuel
> galleys up to and through the metering needle seat. And the try again.
>
> The trials and tribulations of changing engines and learning about the
> Tillotson carburetor.
>
> Jack B. Hart FF004
> Winchester, IN
>
>
Message 2
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Subject: | Re: Firefly slide show |
From: Richard Girard <aslsa.rng@gmail.com>
>
Jack, I had many of the same problems with the Mikuni pumper carb on a
Zenoah engine. In my case, the problem was a very small tear in the pump
diaphragm. The solution was real simple, dump the pumper carb (Mikuni had
stopped making the carb and repair kits for it) and replace with a
conventional slide carb and separate fuel pump. Started first pull and never
had another problem.
>
Rick,
Supposedly there are several engines out there using this carburetor. I am
still on the lower end of the learning curve, so I will keep working with
for a while to see if I can master it.
Jack B. Hart FF004
Winchester, IN
Message 3
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Subject: | NEED MORE BRAKING POWER? |
I finally got back to working on the brakes. The c-90 brake calipers now being
used on the MK-3x and others require a brake pedal ratio of 4:1 to have really
good braking power. The pedals being used on our Kolbs have a ratio of 1:1
or less, according to Matco. If you don't seem to have good braking power, this
is probably your problem. I have been thinking about this for a while, trying
to find an easy way to modify what we already have. The picture should answer
any questions you may have to modify your existing pedals. This arrangement
should give you a ratio of 3:1. You could improve even more on this by raising
the top of the pedal another inch giving you the full 4:1 ratio called out
for the the instructions.
Rick Lewis
--------
Rick Lewis
(VW Watercooled Engine)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=295180#295180
Attachments:
http://forums.matronics.com//files/pic00026_247.jpg
Message 4
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Subject: | Re: NEED MORE BRAKING POWER? |
could you press one of the pedals in a pic to show how this system works
from what I see in the pic all it would give you is more dead linkeage
but I could be wrong
working to much to get any flying in
Ellery Batchelder Jr.
-----Original Message-----
From: Rick Lewis <cktman@hughes.net>
Sent: Wed, Apr 21, 2010 8:35 pm
Subject: Kolb-List: NEED MORE BRAKING POWER?
I finally got back to working on the brakes. The c-90 brake calipers now
being
sed on the MK-3x and others require a brake pedal ratio of 4:1 to have rea
lly
ood braking power. The pedals being used on our Kolbs have a ratio of 1:1
or
ess, according to Matco. If you don't seem to have good braking power, th
is is
robably your problem. I have been thinking about this for a while, trying
to
ind an easy way to modify what we already have. The picture should answer
any
uestions you may have to modify your existing pedals. This arrangement sh
ould
ive you a ratio of 3:1. You could improve even more on this by raising th
e top
f the pedal another inch giving you the full 4:1 ratio called out for the
the
nstructions.
Rick Lewis
--------
ick Lewis
(VW Watercooled Engine)
ead this topic online here:
http://forums.matronics.com/viewtopic.php?p=295180#295180
ttachments:
http://forums.matronics.com//files/pic00026_247.jpg
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Message 5
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Subject: | NEED MORE BRAKING POWER? |
Yeah=2C Ellery=2C that's what I thought=2C too. It must work better in rea
l life than it looks like in the picture.
I'm going to be installing my brake cylinders and fluid tomorrow!
Mike Welch
MkIII CX
Subject: Re: Kolb-List: NEED MORE BRAKING POWER?
From: elleryweld@aol.com
could you press one of the pedals in a pic to show how this system works f
rom what I see in the pic all it would give you is more dead linkeage but
I could be wrong
working to much to get any flying in
Ellery Batchelder Jr.
-----Original Message-----
From: Rick Lewis <cktman@hughes.net>
Sent: Wed=2C Apr 21=2C 2010 8:35 pm
Subject: Kolb-List: NEED MORE BRAKING POWER?
I finally got back to working on the brakes. The c-90 brake calipers now b
eing
used on the MK-3x and others require a brake pedal ratio of 4:1 to have rea
lly
good braking power. The pedals being used on our Kolbs have a ratio of 1:1
or
less=2C according to Matco. If you don't seem to have good braking power
=2C this is
probably your problem. I have been thinking about this for a while=2C tryi
ng to
find an easy way to modify what we already have. The picture should answer
any
questions you may have to modify your existing pedals. This arrangement sh
ould
give you a ratio of 3:1. You could improve even more on this by raising th
e top
of the pedal another inch giving you the full 4:1 ratio called out for the
the
instructions.
Rick Lewis
--------
Rick Lewis
(VW Watercooled Engine)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=295180#295180
Attachments:
http://forums.matronics.com//files/pic00026_247.jpg
rget=_blank>http://www.matronics.com/Navigator?Kolb-List
tp://forums.matronics.com
_blank>http://www.matronics.com/contribution
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Message 6
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Subject: | Best Kolb video... |
Larry,
My vote for best Kolb video goes to Pillars of Rome. I watch everything you
post and am impressed with all your productions. Keep them coming!
Thanks,
Nick Cassara
Palmer, Alaska
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