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Magneto to sparkplug routing

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Deems Davis

Joined: 09 Jan 2006
Posts: 925

Posted: Fri May 25, 2007 6:51 pm Post subject: Magneto to sparkplug routing

Anybody up for a temporary break  from panel discussions? (which I'm 

enjoying thoroughly!)



I'm into the engine install, and working on baffling and plenum, and I'm 

trying to think ahead so I know I've got clearance for spark plug leads, 

how to attach, baffling penetration etc.. I've got dual Slick mags 

6350/6351 (I may be willing to be an early adopter on some things, but I 

couldn't get comfortable (yet) with conflicting info I was hearing on EI ).

 

My engine shipped with the mag harnesses uncoupled from the plugs, And 

I'm at a loss on how to reconnect the leads. I've searched the Internet 

for information about how to connect them and I've come up empty. I know 

I can get the info from Allen (at) BPE on Monday AM, but am hoping someone 

might have the answer over the weekend.



(My Lycoming manual depicts 2 different methods for dual mags.)



Thanks



Deems Davis # 406

Finishing - ( A Misnomer ! )

http://deemsrv10.com/

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Deems Davis

Joined: 09 Jan 2006
Posts: 925

Posted: Fri May 25, 2007 7:01 pm Post subject: Magneto to sparkplug routing

Boy, do I feel stupid   :-[



I'm assuming that the answer must have something to do with the B3 

(bottom cyl # 3 ?), T5  top Cyl #5?) , B6 ........etc stamped on the end 

of the leads that connects to the plug....



Too long in a 100 degree garage!

Deems



Deems Davis wrote:

 	  Quote: 	
		   



 Anybody up for a temporary break  from panel discussions? (which I'm 

 enjoying thoroughly!)



 I'm into the engine install, and working on baffling and plenum, and 

 I'm trying to think ahead so I know I've got clearance for spark plug 

 leads, how to attach, baffling penetration etc.. I've got dual Slick 

 mags 6350/6351 (I may be willing to be an early adopter on some 

 things, but I couldn't get comfortable (yet) with conflicting info I 

 was hearing on EI ).



 My engine shipped with the mag harnesses uncoupled from the plugs, And 

 I'm at a loss on how to reconnect the leads. I've searched the 

 Internet for information about how to connect them and I've come up 

 empty. I know I can get the info from Allen (at) BPE on Monday AM, but am 

 hoping someone might have the answer over the weekend.



 (My Lycoming manual depicts 2 different methods for dual mags.)



 Thanks



 Deems Davis # 406

 Finishing - ( A Misnomer ! )

 http://deemsrv10.com/

- The Matronics RV10-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Tim Olson

Joined: 25 Jan 2007
Posts: 2872

Posted: Fri May 25, 2007 7:09 pm Post subject: Magneto to sparkplug routing

What seems to be the problem with attaching the harnesses.  They

did come with the wires all into a cap right? ... and that cap

just gets screwed to the mag.  The cap actually only fits perfectly

in 1 orientation...but you have to be really careful because it

looks very close in one other orientation.  As far as mag vs.

firing order....I'd have to dig in to read on that myself.  It

was easy with a Lightspeed...just hook the top plugs to that

and the bottom to the mags.  I can't remember the wire arrangement

for a pair of mags though...it's been toooooo long.



Tim Olson - RV-10 N104CD - Flying

do not archive

Deems Davis wrote:

 	  Quote: 	
		   

 

 Anybody up for a temporary break  from panel discussions? (which I'm 

 enjoying thoroughly!)

 

 I'm into the engine install, and working on baffling and plenum, and I'm 

 trying to think ahead so I know I've got clearance for spark plug leads, 

 how to attach, baffling penetration etc.. I've got dual Slick mags 

 6350/6351 (I may be willing to be an early adopter on some things, but I 

 couldn't get comfortable (yet) with conflicting info I was hearing on EI ).

 

 My engine shipped with the mag harnesses uncoupled from the plugs, And 

 I'm at a loss on how to reconnect the leads. I've searched the Internet 

 for information about how to connect them and I've come up empty. I know 

 I can get the info from Allen (at) BPE on Monday AM, but am hoping someone 

 might have the answer over the weekend.

 

 (My Lycoming manual depicts 2 different methods for dual mags.)

 

 Thanks

 

 Deems Davis # 406

 Finishing - ( A Misnomer ! )

 http://deemsrv10.com/

- The Matronics RV10-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Tim Olson

Joined: 25 Jan 2007
Posts: 2872

Posted: Fri May 25, 2007 7:31 pm Post subject: Magneto to sparkplug routing

Don't feel too bad...you remembered it first.  As soon as I

saw this post I had the head slapping moment myself.  Now

I remember that it's printed right on the wires. 

Well, at least you have the means to progress now!



Tim Olson - RV-10 N104CD - Flying

do not archive

Deems Davis wrote:

 	  Quote: 	
		   

 

 Boy, do I feel stupid   :-[

 

 I'm assuming that the answer must have something to do with the B3 

 (bottom cyl # 3 ?), T5  top Cyl #5?) , B6 ........etc stamped on the end 

 of the leads that connects to the plug....

 

 Too long in a 100 degree garage!

 

 

 Deems

 

 Deems Davis wrote:

> 

>

> Anybody up for a temporary break  from panel discussions? (which I'm 

> enjoying thoroughly!)

>

> I'm into the engine install, and working on baffling and plenum, and 

> I'm trying to think ahead so I know I've got clearance for spark plug 

> leads, how to attach, baffling penetration etc.. I've got dual Slick 

> mags 6350/6351 (I may be willing to be an early adopter on some 

> things, but I couldn't get comfortable (yet) with conflicting info I 

> was hearing on EI ).

>

> My engine shipped with the mag harnesses uncoupled from the plugs, And 

> I'm at a loss on how to reconnect the leads. I've searched the 

> Internet for information about how to connect them and I've come up 

> empty. I know I can get the info from Allen (at) BPE on Monday AM, but am 

> hoping someone might have the answer over the weekend.

>

> (My Lycoming manual depicts 2 different methods for dual mags.)

>

> Thanks

>

> Deems Davis # 406

> Finishing - ( A Misnomer ! )

> http://deemsrv10.com/

>

- The Matronics RV10-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Jack.Phillips(at)cardinal
Guest

Posted: Tue May 29, 2007 3:48 am Post subject: Magneto to sparkplug routing

Yeah, but don't trust Slick to get it right.  When I built my first

plane, I installed new Slick mags and routed the harness per the labels

stamped in the lead caps.  Tried for a week to get the engine to start

and run, but it was missing terribly, hitting on only 2 cylinders.

Finally disconnected the leads from all 8 plugs and checked the firing

order and found that the leads were mis-marked.  Once I had them

correctly attached, the engine ran fine.



Jack Phillips

Just dimpling away on the tailcone



--

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