[NSRCA-dist8] Redmond

[Rex]

That's good news!

J N Hiller <jnhiller at earthlink.net> wrote:

>OK guys, here's the rest of the story. First the pump activating tubing, it
>came with the pump from Perry, I believe it is about 1/16 ID vinyl. I pulled
>the motor and changed it and while I had the motor out I disassembled and
>flushed both the carb and needle valve assemblies, both direction of flow,
>using my fuel transfer pump. It still doesn't get sloppy rich but it cooled
>the high speed off substantially. It now runs somewhat richer discharging
>light brown oil from the pipe with a 1 3/4 open needle valve. It flows a
>good stream of oil vapor on long verticals now and is much happier running a
>1 1/2 turn open needle valve. I set the pump back to near the factory
>setting of about .110" set screw height. Which may be a little lean so I
>opened it a quarter turn when I got home. The idle screw is near 3 1/2 turns
>in from flush. This engine has a lot of miles on it and probably could use a
>new piston ring, which is on order.
>I can now get back to trying to optimize the pipe length running the heavy
>wood Xoar 18-10 prop. Heck somebody needs to use a wood prop.
>See you in Redmond.
>Jim
>
>
>-----Original Message-----
>From: nsrca-dist8-bounces at lists.nsrca.org
>[mailto:nsrca-dist8-bounces at lists.nsrca.org]On Behalf Of Rex
>Sent: Tuesday, June 21, 2011 4:45 PM
>To: AK, ID, MT, OR, WA, WY
>Subject: Re: [NSRCA-dist8] Redmond
>
>Are you using the little red tubing?  I tried fuel tubing and that doesn't
>work.. it pulses and depletes diaphragm action.  I bet a new tube fixes the
>problem.
>
>J N Hiller <jnhiller at earthlink.net> wrote:
>
>>I've blown through the system from the tank vent line and fuel flows freely
>>everywhere. I've got one more thing to try and it's a long shot. The pump
>>activating tube is partially kinked near one end where it bends. It seams
>>logical to me that this partial restriction could dampen the operating
>>pressure pulsation at high frequency / RPM leaving it unaffected at low
>>through mid RPM. I need to drop the header and pull the motor to attach the
>>pressure tube to the backplate screw nipple. I almost did it yesterday but
>>though I'd just do one thing at a time.
>>The pressure tube needs to be changed anyway as it has hardened and doesn't
>>grip the ends well, probably an incompatibility with the synthetic oil in
>>the fuel. It stays on but how long is uncertain and I don't like having
>>problems in the starting box. E-power seams more compatible with a fuel-it
>>and fly-it concept. When an airplane leaves my shop it shouldn't need
>>anything more than a battery replacement in 4 or 5 years. Anything less is
>>only tolerable.
>>Later
>>Jim
>>
>>-----Original Message-----
>>From: nsrca-dist8-bounces at lists.nsrca.org
>>[mailto:nsrca-dist8-bounces at lists.nsrca.org]On Behalf Of Rex
>>Sent: Monday, June 20, 2011 9:26 PM
>>To: AK, ID, MT, OR, WA, WY
>>Subject: Re: [NSRCA-dist8] Redmond
>>
>>Hmmmm... sounds like it may be a little deeper problem.  Same fuel as last
>>used in that engine?  Sounds like an obstruction.  I'm thinking it might
>>have something in the high speed jet....like a really small sliver of
>grass.
>>I've seen that before...backflush the spray bar with both jets out.
>>
>>J N Hiller <jnhiller at earthlink.net> wrote:
>>
>>>Hay Rex, no joy on the pump change, acted the same. Running the needle 2
>>>turns open is acceptable , for now but 3 turns results in no perceptible
>>>change. An F plug tolerates the rich transition better than a #8 but runs
>>>about 150 RPM less on the ground. Removing the extra head shim didn't
>>change
>>>it noticeably. The #8 with the same needle setting and extra head shim
>>>really gets with it but runs hotter than I like, but you don't have these
>>>problems or compromises. All you need is a Honda generator and a couple
>>>extra batteries. Sounds simple to me and I like simple.
>>>Jim
>>>
>>>-----Original Message-----
>>>From: nsrca-dist8-bounces at lists.nsrca.org
>>>[mailto:nsrca-dist8-bounces at lists.nsrca.org]On Behalf Of Rex
>>>Sent: Monday, June 20, 2011 5:52 PM
>>>To: AK, ID, MT, OR, WA, WY
>>>Subject: Re: [NSRCA-dist8] Redmond
>>>
>>>Now you're getting it!  :-)
>>>
>>>J N Hiller <jnhiller at earthlink.net> wrote:
>>>
>>>>I'm liking not having to mess with stuff. Just plug in the battery and
>>>>throttle up.
>>>>
>>>>
>
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