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  #11  
Old 02-25-2013, 01:18 PM
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rocketbob rocketbob is offline
 
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The RV-6 I fly now would't start worth a **** when cold, but when it was warm it started no problem. Turned out to be reversed p-leads to the mag switch which disabled the wrong mag (the mag with an impulse coupling.)
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  #12  
Old 02-25-2013, 01:22 PM
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Default Errr......

Perhaps I missed something but....

OP, do you know if you actually HAVE mags?
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  #13  
Old 02-25-2013, 01:39 PM
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Thanks guys. I wasn't working on it alone, I just wanted to have some good ideas to go from when I got started with the A&P in the morning. He told me the left mag is bad,(the one with impulse) so I'm sending it in to get overhauled. Lucky the A&P that sold me the plane offered to fix it for free minus parts. I'm sending it to him. Thanks for everyone's help.

It is a slick model 4272

Serial 90050012

Kinda makes me want to get electronic ignition.
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Last edited by erikpmort : 02-25-2013 at 01:43 PM.
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  #14  
Old 02-25-2013, 01:47 PM
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mannanj mannanj is offline
 
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Quote:
Originally Posted by erikpmort View Post
Thanks guys. I wasn't working on it alone, I just wanted to have some good ideas to go from when I got started with the A&P in the morning. He told me the left mag is bad,(the one with impulse) so I'm sending it in to get overhauled.

Kinda makes me want to get electronic ignition.
Check out Robert Paisley at EFII. Great electronic ignition and great to work with!
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  #15  
Old 02-25-2013, 01:48 PM
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Pat Hatch Pat Hatch is offline
 
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Quote:
Originally Posted by erikpmort View Post
Thanks guys. I wasn't working on it alone, I just wanted to have some good ideas to go from when I got started with the A&P in the morning. He told me the left mag is bad, so I'm sending it in to get overhauled. Lucky the A&P that sold me the plane offered to fix it for free minus parts. I'm sending it to him. Thanks for everyone's help.

It is a slick model 4272

Serial 90050012

Kinda makes me want to get electronic ignition.
Or you could just replace the other (non-impulse) mag with electronic ignition, especially since you'll be getting a new/overhauled impulse mag back. That way you get most of the benefits of E.I. with the least amount of capital outlay! And you'll have two sources of starting ignition.

Glad to hear your almost fixed, safe flight home.
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  #16  
Old 02-25-2013, 07:42 PM
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bhester bhester is offline
 
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Quote:
Originally Posted by erikpmort View Post
He told me the left mag is bad,(the one with impulse)

Kinda makes me want to get electronic ignition.

I've got one of each and I've had both fail (at different times), I like have one of each.
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  #17  
Old 02-27-2013, 12:34 PM
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erikpmort erikpmort is offline
 
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so the Fbo diagnosed it as a bad mag. they told me its hard to find people to work on them and that i may not be able to find anyone to overhaul it. Well come to find out these guys don't know their stuff because the other 2 A&Ps i know were willing to look at it, and guess what? it ended up only needing the contact points cleaned! my local A&P said its unusual for something like that to be the problem, but he also checked the condenser and everything else looked fine.

Anyway, frusterating that the FBO there wasn't even willing to open up the mag. the guy i sent it to had it working in 15 minutes. I could have flown home the same day. Glad it wasn't worse, but gee sometimes its hard to find good help....

I like the idea of one mag and one EI. i may do that at somepoint. thanks for the advice. Now i gotta go fetch my plane 500 miles away
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  #18  
Old 02-27-2013, 04:38 PM
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Russ McCutcheon Russ McCutcheon is offline
 
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Quote:
Originally Posted by erikpmort View Post
so the Fbo diagnosed it as a bad mag. they told me its hard to find people to work on them and that i may not be able to find anyone to overhaul it. Well come to find out these guys don't know their stuff because the other 2 A&Ps i know were willing to look at it, and guess what? it ended up only needing the contact points cleaned! my local A&P said its unusual for something like that to be the problem, but he also checked the condenser and everything else looked fine.

Anyway, frusterating that the FBO there wasn't even willing to open up the mag. the guy i sent it to had it working in 15 minutes. I could have flown home the same day. Glad it wasn't worse, but gee sometimes its hard to find good help....

I like the idea of one mag and one EI. i may do that at somepoint. thanks for the advice. Now i gotta go fetch my plane 500 miles away
I like that idea too, but currently I have two impulse mags, both are hot at start, it you had this you would have started the engine and the dirty points would have cleared by the time you got to the run-up area and you would be home, also very handy in the back country where you need it to start and work every time, at least on one mag.
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  #19  
Old 02-27-2013, 08:04 PM
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erikpmort erikpmort is offline
 
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Good point. Can I add an impulse coupler or whatever you call it to my existing R mag ?
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  #20  
Old 02-27-2013, 08:49 PM
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Jesse Jesse is offline
 
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I love dual impulse coupled mags. Starts much easier, especially on FI hot starts.
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