M14P Auto Spark plug conversions

[Scott Aldrich]

Are automotive plugs the future on the M14?

I believe all of the main M14 suppliers are working on an automotive spark
plug conversion of one sort or another. A. Dennis Savarese of the YAK
community is the first (as far as I know) to go to market with a "complete"
kit. They have all new high performance racing ignition cables and plugs.
You toss the entire Russian (or Romanian) ignition ring and run the cables
into your magneto caps. Sounds like an easy one day job. Once converted
the plugs themselves are in the under $3 range each.

Go here for info.

http://www.yak-52.com/

I am leaning on going this route. Does anyone else have any info on what
the other guys are doing? It seems just a simple (cheap) adapter that uses
the original harness would be a way to go also. Of course all this is
assuming the plugs are working out over the long run. So far they say they
are better.

Exactly which plugs they are using I do not know but will try to find out.
I am not sure if that is "secret" until you buy but I doubt it.

For what it is worth,
Scott
Moose 174





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[George Coy]

On the issue of spark Plug for M14P
Mr. Les Crowder developed the auto spark plug system about 8 years ago.
Other than some radio noise issues, it seems to work OK. The only other
issue I would be concerned with possible shorting out during heavy rain or
snow. Remember that the larger diameter (3/4 inch barrel) spark plugs
(second letter H rather than E as in RHM 40 E vs. REM 40E) were developed as
"all weather" spark plugs for radial engines. Radial engines have the spark
plugs exposed to the weather more that the cowled opposed engine designs.
There are adapters to allow the use of U.S. 14 mm plugs with the original
Russian lead ends. We stock the adapters as well as new lead ends that will
allow the use of U.S. 14 mm plugs.
The Romanian factory plans to offer 18 mm spark plug holes in future
cylinder production. This will allow the use of different heat range spark
plugs.
The only U.S. 14 mm aircraft plug available at this time is the REL 37B
form Champion. Its heat range is a little too cold for the engine, but seems
to work well in most climates. The engine will tend to load up with long
periods at idle. Champion and Auburn have both been in contact with us
regarding production of a slightly warmer 14 mm plug.
Lastly, a company by the name of Livingston Redding in California made a
conversion to shield the small diameter auto spark plugs. They provided a
waterproof metal shield that also acted as an RF shield I believe it was
made for the military. The SeaBee guys with Franklin engines are always
looking for these as they can then use an auto spark plug with a higher heat
range and avoid loading of the engine in water operations.

George Coy
President
Gesoco Industries Inc.
629 Airport Rd.
Swanton, VT 05488
TEL 802-868-5633
FAX 802-868-4465
Web Site www.gesoco.com
e-mail George@gesoco.com
Franklin County Airport (KFSO)

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
Scott Aldrich
Sent: Saturday, April 02, 2005 11:40 PM
To: rebel-builders@dcsol.com
Subject: M14P Auto Spark plug conversions


Are automotive plugs the future on the M14?

I believe all of the main M14 suppliers are working on an automotive spark
plug conversion of one sort or another. A. Dennis Savarese of the YAK
community is the first (as far as I know) to go to market with a "complete"
kit. They have all new high performance racing ignition cables and plugs.
You toss the entire Russian (or Romanian) ignition ring and run the cables
into your magneto caps. Sounds like an easy one day job. Once converted
the plugs themselves are in the under $3 range each.

Go here for info.

http://www.yak-52.com/

I am leaning on going this route. Does anyone else have any info on what
the other guys are doing? It seems just a simple (cheap) adapter that uses
the original harness would be a way to go also. Of course all this is
assuming the plugs are working out over the long run. So far they say they
are better.

Exactly which plugs they are using I do not know but will try to find out.
I am not sure if that is "secret" until you buy but I doubt it.

For what it is worth,
Scott
Moose 174





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