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advice in this forum.]----
I understand Eliacim.
He is used to a certain rpm that this engine is making with his prop and he
knows the sound it makes.
The just pulled one jug and the thread recoiled.
But they also overhauled one magneto and installed new plugs.
Now the performance is gone.
This after all that hole cutting for the spark plug fairings and with new
top plugs!
Frustrating.
I would:
Double check the magneto.
Replace the spark plugs - you might have one that is no good.
When repairing my motorcycles or VW Beetles in earlier times, I found the
total replacement of a part with a known good one, the best way to get down
to the error.
Hartmut
----- Original Message -----
From: "Wood, Percy" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: "Ctech" <[email protected]>
Sent: Tuesday, June 20, 2006 8:07 PM
Subject: RE: [COUPERS-TECH] Short on power
----[Please read http://ercoupers.com/disclaimer.htm before following any
advice in this forum.]----
I grant, Eliacim, that Standard Day conditions vs. what you had west of
DFW the day you measured may not be similar.
However, by "engine was not producing full power" do you mean "like it
did before" or "not enough power?" The latter has been a complaint of
Ercoupe owners for years (like since 1946).
Things to check are throttle actually opens the butterfly in your carb
up full, and carb heat cuts off the hot air completely.
Percy
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Tuesday, June 20, 2006 11:48 AM
To: Wood, Percy
Cc: Ctech
Subject: RE: [COUPERS-TECH] Short on power
Well, as a begginer, the concept of static RPM is new to me. However, I
can say that for sure, without any doubt whatsoever, my engine was not
producing full power.
Eliacim
Quoting "Wood, Percy" <[EMAIL PROTECTED]>:
----[Please read http://ercoupers.com/disclaimer.htm before following
any advice in this forum.]----
Jason,
As a General Rule, all aviation measures are taken against a "Standard
Day." FAR part 1 should have the definition, but if yours does not:
* Humidity = 50%
* Altitude = Mean Sea Level
* Altimeter setting = 29.92
* Temperature = 59 degrees F.
* Winds = none.
I can see where air density could change static RPM, perhaps adjusting
it to in or out of limits. Whether this is Eliacim's case, I don't
know.
Percy
________________________________
From: Jason J Ellingson [mailto:[EMAIL PROTECTED]
Sent: Tuesday, June 20, 2006 11:13 AM
To: 'Ctech'
Subject: RE: [COUPERS-TECH] Short on power
----[Please read http://ercoupers.com/disclaimer.htm before following
any advice in this forum.]----
I haven't looked it up, but would wonder if these limits are valid for
"standard" conditions of if the range given is to help take into
account for this?
- Jason
________________________________
From: Ed Burkhead [mailto:[EMAIL PROTECTED]
Sent: Tuesday, June 20, 2006 11:35 AM
To: 'heavensounds'; Ctech
Subject: RE: [COUPERS-TECH] Short on power
----[Please read http://ercoupers.com/disclaimer.htm before following
any advice in this forum.]----
Eliacim,
Couple of considerations:
1. Static rpm is what you get on the ground with full power in a
zero wind condition. (On a windy day, I've approximated no-wind
condition by turning the propeller plane sideways to the wind. It's
not exactly the same as no-wind conditions but it's much closer than
having your nose into the wind. Don't overheat the engine.)
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