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  #1  
Old 01-27-2016, 06:45 AM
BSwayze's Avatar
BSwayze BSwayze is offline
 
Join Date: Jul 2007
Location: Molalla, Oregon
Posts: 955
Default Slick Magneto experts - Please help w/question

I recently pulled the right magneto off my engine, to put it up for sale. It's a Slick 4370. I see what I thought was an impulse gear assembly on the front of it. But one gentleman here saw my post in the classifieds and told me the impulse mag is always the left one, not the 4370 on the right side. I'm obviously new at this. I don't know these things. I'm hoping someone can give me more information. What do I have here? What is this thing? Any part number or model number?

My main purpose is to try and get some idea of what it's worth, so I can offer it at a fair price to a potential buyer. But I'm also wondering if this is useful for our RV's, or better for some other aircraft. ??? Any information or help would be greatly appreciated. Here are some pictures:











Thanks again, for any comments!
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  #2  
Old 01-27-2016, 07:48 AM
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Raymo Raymo is offline
 
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Location: Richmond Hill, GA (KLHW)
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Default

I'm not an expert but it appears you have a standard 4730 with some kind of an adapter. The gear is usually installed directly onto the shaft.

On what was it installed?
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  #3  
Old 01-27-2016, 08:03 AM
EllisMcgaughy EllisMcgaughy is offline
 
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Location: Fayetteville nc
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Default magneto identification

Contact Joe Lugie at Champion......he is "the expert" in my opinion.
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  #4  
Old 01-27-2016, 08:53 AM
bnt83 bnt83 is offline
 
Join Date: Sep 2014
Location: Lincoln NE
Posts: 78
Default

You need to keep that, it is part of the engine.

http://www.lycoming.com/Portals/0/te...on%20Drive.pdf

The engines without that adapter suffer from the dreaded "magneto drive cushions fall into the engine during magneto R&R" issue.

Last edited by bnt83 : 01-27-2016 at 08:58 AM.
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  #5  
Old 01-27-2016, 09:16 AM
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9GT 9GT is offline
 
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Location: Southern Michigan
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Default

That's not an impulse coupled magneto. Depending on the hours on it,,,it is pretty much core value only. Maybe $100,,,,$150 at most. You will get the most out of it on eBay.
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  #6  
Old 01-27-2016, 10:10 AM
659JR 659JR is offline
 
Join Date: Dec 2011
Location: delta, co
Posts: 204
Default adapters

They were installed on engines with vibration issues mostly caused by different propellers. They are very expensive new but I have not sold any used so I don't think it would carry much extra value. You may check to see if that was why they installed that adapter assy!

Jesse
970-874-7575
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  #7  
Old 01-27-2016, 02:58 PM
Flyingleap Flyingleap is offline
 
Join Date: Nov 2012
Location: Cincinnati,Ohio KHAO
Posts: 146
Default Pillow blocks

That adapter takes the little pillow blocks for pulses of the engine and prop
combination, as has been said. My 69 Cherokee 180 has them. I'm not sure it cured the mag failure problems, five mags failed in 2460hrs(Slicks). Just for grins figured the cost of mag operation, cost, rebuild, failure and it's $2 hour...tough to figure.
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  #8  
Old 01-27-2016, 04:51 PM
jrs14855 jrs14855 is offline
 
Join Date: Apr 2008
Location: Lake Havasu City AZ
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Default Mags

1000 hours on an 0 360 out of a Cherokee 180 with same Sensenich prop as Cherokee, Bendix mags one failure at about 800 hours due to an obsolete gear installed by Bendix in remanufactured mag, no other issues. 3300-3500 r/m much of the time. never overhauled the mags, only checked the impulse coupling every 100 hours.
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  #9  
Old 01-27-2016, 07:24 PM
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BSwayze BSwayze is offline
 
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Location: Molalla, Oregon
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Default

Thank you all, for the comments so far. I really appreciate it. Anything further that one of you might add, please do!

Quote:
Originally Posted by Raymo View Post
I'm not an expert but it appears you have a standard 4730 with some kind of an adapter. The gear is usually installed directly onto the shaft.

On what was it installed?
Ray, it came off of my Lycoming O-360 that I bought from a local guy. I'm putting pMags on the engine, so that's the reason for all of this.
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  #10  
Old 01-28-2016, 08:03 AM
Jaknjoan Jaknjoan is offline
 
Join Date: Jan 2005
Posts: 246
Default Magnetos

Quote:
Originally Posted by BSwayze View Post
Thank you all, for the comments so far. I really appreciate it. Anything further that one of you might add, please do!



Ray, it came off of my Lycoming O-360 that I bought from a local guy. I'm putting pMags on the engine, so that's the reason for all of this.
The man to talk to about magnetos in your part of the country is Bill Davidge, out of Scappoose. He can be reached at 503-793-0332
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