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Insert Pics
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12-16-2013, 11:08 AM
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Join Date: Jan 2005
Location: SC
Posts: 12,887
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Quote:
Originally Posted by rocketbob
Pretty simple...why spend $150 for plug adapters if you don't need to.
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You got me there!
Quote:
Originally Posted by deek
I've gone through 3 sets of plug adaptors from LSE over the last 2,500 hours. I HATED to remove the top plugs/adaptors because something unpleasant invariably occurred. Klaus has changed configuration and/or materials several times but twice I've had the helicoil come out the head
I now use the same Denso L-14U (against Klaus' advice) with no issues.
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The only problem I have ever had with the adapters was when I followed the advice of someone with a Light Speed Ignition who told me to install the adapters and torque them down and then install the spark plug, like Klaus recommends. I crushed the adapter and had to order a new one from Emag. Installing them on the plug, using anti-seize on both the plug & adapter, and then torqueing the plug, as Emag recommends has worked fine.
__________________
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
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12-16-2013, 11:53 AM
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Join Date: Apr 2007
Location: -
Posts: 502
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Bob,
Are those plugs really as hot as this chart would seem to imply?
Thanks,
David
Last edited by digidocs : 12-16-2013 at 11:57 AM.
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12-16-2013, 04:06 PM
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Join Date: Feb 2006
Location: Redmond Wash
Posts: 96
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inserts
Torque the inserts to 35 and the plugs to 25. No problems.
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12-16-2013, 04:12 PM
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Join Date: Jan 2005
Location: SC
Posts: 12,887
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Quote:
Originally Posted by drakerv
Torque the inserts to 35 and the plugs to 25. No problems.
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Do NOT do this with inserts / adapters from Emag!!!
If you do, you will crush them. Just ask me how I know. (See my post at the top of this page.)
Quote:
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Originally Posted by Page 9, P-mag Installation Manual
First,install adapters with the supplied gasket on the spark plugs finger tight. Then, insert the combined assembly (plug with adapter) in the engine and tighten to 18 ft/lb (standard auto plug torque) through the spark plug ONLY. Do not torque the adapter itself.
Note 1: If you install and torque the adapters separately, stresses will be
focused at the adapter neck and can cause it to fail during installation.
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__________________
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
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12-16-2013, 04:15 PM
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Join Date: Feb 2006
Location: Redmond Wash
Posts: 96
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fyi
Mine are lightspeed.
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12-16-2013, 04:23 PM
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Join Date: Jan 2005
Location: SC
Posts: 12,887
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Quote:
Originally Posted by drakerv
Mine are lightspeed.
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It seams that Lightspeed and Emag get their inserts from different vendors.
When I tried to install my Emag adapters per Lightspeed's recommendation I crushed the first one and part of it almost fell into the cylinder.
This delayed some flying and almost forced me to pull a cylinder.
Since then, I have been installing per the P-mag Installation Manual and have not had any issues.
It is best to follow the manufacturer's recommendation, even when using parts that look to be very similar.
__________________
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
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12-16-2013, 04:32 PM
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Join Date: Feb 2006
Location: Redmond Wash
Posts: 96
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agree
Have pulled and changed plugs dozens of times and never had a insert come out. Marc
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12-16-2013, 06:57 PM
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Join Date: Jul 2009
Location: Mojave
Posts: 4,652
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Quote:
Originally Posted by ChiefPilot
These aren't resistor plugs and therefore emit more RF than a resistor plug would. I considered these but decided against it but I am interested in hearing if you've encountered any RF issues?...
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I had some bizarre PMag behavior last year (documented on this site) and finally traced it directly to the use of non resistor plugs. The non resistors would partially shut down the PMags in short order. Switching back to the recommended plug fixed the ignition immediately. It did this on four, count them, FOUR separate ignitions.
Non resistor plugs and PMags are bad juju. Period, dot!
Of course it was only AFTER I found this all out that I discovered the NGK warning about non resistor plugs and their potential to screw up electronic ignitions.
__________________
WARNING! Incorrect design and/or fabrication of aircraft and/or components may result in injury or death. Information presented in this post is based on my own experience - Reader has sole responsibility for determining accuracy or suitability for use.
Michael Robinson
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Harmon Rocket II -SDS EFI
RV-8 - SDS CPI
1940 Taylorcraft BL-65
1984 L39C
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12-17-2013, 07:06 AM
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Join Date: Jan 2005
Location: Yukon Ok
Posts: 106
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NKG Spark Plugs
Here is some interesting information on NGK plugs.
http://www.ngksparkplugs.com/tech_su...x.asp?mode=nml
Provides a good understanding of how the spark plug choice affects the engine(plug fowling, overheating, compression, altitude, etc.). Of course this is regarding earth bound vehicles, but I can see the relationship with aircraft engines too.
I have dual P-mags on my 0-320 and use NGK BRE8ES plugs. They are so cheap that I replace them at conditional inspection even though they are in great condition.
__________________
Jerry Calvert
Yukon Ok
RV6 N296JC
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03-11-2014, 11:57 AM
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Join Date: Jun 2006
Location: 8I3
Posts: 3,564
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I now have a little bit more experience with the L-14U plugs. Not sure if I will continue long term with them, they seem to be running on the hot side.

__________________
Please don't PM me! Email only!
Bob Japundza CFI A&PIA
N9187P PA-24-260B Comanche, flying
N678X F1 Rocket, under const.
N244BJ RV-6 "victim of SNF tornado" 1200+ hrs, rebuilding
N8155F C150 flying
N7925P PA-24-250 Comanche, restoring
Not a thing I own is stock.
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