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#1
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Our Mooney has a 500 hour recurring AD for inspecting the Impulse
Coupler. While they have it off they will inspect the points and condensers and replace worn ones. Our left mag was out of time by 5 degrees so they had to remove the magneto anyway. Jon Kraus PP-ASEL-IA '79 Mooney 201 Jim Burns wrote: To the group: At how many hours do you rebuild or replace your mags? or do you wait for a problem to arise first? Jim |
#2
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Jim Burns wrote:
: To the group: At how many hours do you rebuild or replace your mags? or do : you wait for a problem to arise first? My airplane has Bendix mags, which as Jon pointed out have a recurring AD for impulse coupling inspection. I think it's every 400 hours, though, but I can't remember. So, every 400 hours the impulse mag gets an internal inspection. I have the non-impulse mag inspected at the same time, although not strictly required. It makes me feel better while I'm flying night IMC over the Chesapeake Bay. Most of the time nothing needs repair, although the first time we found some "superceded" parts that were replaced. If I notice different mag drops and the plugs are OK I have the mags looked at, as the timing may have changed. Every 100 hours I check mag to engine timing when I clean the plugs. Keeping the mags well tuned makes the engine start much easier, too. -- Aaron C. |
#3
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Group Poll: How many hours between mag overhauls?
To the group: At how many hours do you rebuild or replace your mags? or do
you wait for a problem to arise first? Jim |
#4
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I have the mags (Bendix) overhauled at the same time the impulse couplings
get done. (Seneca) "Jim Burns" wrote in message ... To the group: At how many hours do you rebuild or replace your mags? or do you wait for a problem to arise first? Jim |
#5
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Jim Burns wrote: To the group: At how many hours do you rebuild or replace your mags? or do you wait for a problem to arise first? When the left comes off for the impulse coupler inspection, I have both sent over to the accesory shop. Rather than having them overhauled, I have the shop "inspect and repair as necessary". It's much less expensive than an overhaul. If the mags are in good shape, I see no need to go the full overhaul route and replace a bunch of parts that are working just fine. Most of the time, the mags come back with little or no work having been done. If they were really getting rough, the shop would let me know and I'd OK an overhaul. My current set of (Bendix) mags went about 1200 hrs. between overhauls. John Galban=====N4BQ (PA28-180) |
#6
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Jim Burns wrote:
To the group: At how many hours do you rebuild or replace your mags? or do you wait for a problem to arise first? Jim 500 hours. Usually, one needs some parts and the other needs to be replaced. Slick mags in a Cherokee 140. Mike |
#7
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I replaced the Slick mags on my Husky's Lycoming O-360 after 2000
hours, though the plane didn't run any better with the new ones. Seemed like it was time for new ones. They work great too. Mechanic managed to miss-time them at first go around. Had trouble with his buzz box. It's tight back there, hard to adjust them. |
#8
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On Thu, 21 Apr 2005 00:51:16 GMT, Mike Spera
wrote: Jim Burns wrote: To the group: At how many hours do you rebuild or replace your mags? or do you wait for a problem to arise first? Jim 500 hours. Usually, one needs some parts and the other needs to be replaced. Slick mags in a Cherokee 140. I've put a 1000 on them and I'd have to dig out the log books but I believe they were new with the engine. That'd make about 1300 currently. Still workin' good. Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair) www.rogerhalstead.com Mike |
#9
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"Jim Burns" wrote in message ...
To the group: At how many hours do you rebuild or replace your mags? or do you wait for a problem to arise first? Jim I have them opened every 500 hours in my Mooney. I don't have the AD because my mags were replaced. However, I've never actually O/H'd them. I have them opened, inspected and replace points, etc. The shop has never found any issues worthy of an O/H. Figure 3-4 hours per mag. -Robert |
#10
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MAINTENANCE INTERVALS FOR ALL TCM AND BENDIX AIRCRAFT MAGNETOS see SB643B http://www.tcmlink.com/servicebulletins/index.cfm i use 500 hr for bendix & slick for service for Bendix D-2000 450 to 500 for service jon |
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