Today's Message Index:
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1. 07:45 PM - RPM drop Problem (dennisvh)
2. 09:28 PM - Re: RPM drop Problem (Bob Buckthal)
3. 09:29 PM - Re: RPM drop Problem (James R. Cunningham)
Message 1
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| Subject: | RPM drop Problem |
--> Engines-List message posted by: "dennisvh" <dennisvh@adelphia.net>
I have a 1946 Ercoupe with a 85 HP (started as a 75HP) Continental engine with
a 200 RPM drop on the right mag at run-up. Mechanics have 100% eliminated as
the problem both mags, all plugs, P-leads, and switch. Also, the engine ran fine
for 25 hours after a new ignition harness was installed. The new harness
was checked out yesterday on the engine and appears to be ok on all wires. We
don't where to go next. Any advice will be appreciated. Thanks, Dennis Hatfield.
[Question]
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=56226#56226
Message 2
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| Subject: | RPM drop Problem |
--> Engines-List message posted by: "Bob Buckthal" <n223b@comcast.net>
Dennis,
Something that you think is OK isn't. You didn't mention timing. A late
mag will produce a big drop.
Bob
-----Original Message-----
From: owner-engines-list-server@matronics.com
[mailto:owner-engines-list-server@matronics.com]On Behalf Of dennisvh
Sent: Monday, August 21, 2006 7:45 PM
Subject: Engines-List: RPM drop Problem
--> Engines-List message posted by: "dennisvh" <dennisvh@adelphia.net>
I have a 1946 Ercoupe with a 85 HP (started as a 75HP) Continental engine
with a 200 RPM drop on the right mag at run-up. Mechanics have 100%
eliminated as the problem both mags, all plugs, P-leads, and switch. Also,
the engine ran fine for 25 hours after a new ignition harness was installed.
The new harness was checked out yesterday on the engine and appears to be ok
on all wires. We don't where to go next. Any advice will be appreciated.
Thanks, Dennis Hatfield. [Question]
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=56226#56226
Message 3
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| Subject: | Re: RPM drop Problem |
--> Engines-List message posted by: "James R. Cunningham" <jrccea@bellsouth.net>
The timing may have slipped on one mag.
dennisvh wrote:
> --> Engines-List message posted by: "dennisvh" <dennisvh@adelphia.net>
>
> I have a 1946 Ercoupe with a 85 HP (started as a 75HP) Continental engine with
a 200 RPM drop on the right mag at run-up.
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