Slick 4200 Maintenance Manual
Help for the correct setting of the magneto Important note on liability This site was established and published as assistance. It contains subjective opinions and does not serve as a manual for actions resulted from it. The author does not take over any guarantee for the topicality, the correctness, completeness or quality of the information made available.
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Following the de- and attaching of a Slick magneto (models 4200/4300) will be described on a Lycoming engine. In general This description is meant to be informative for technical personal of FBO’s. It is not meant to replace otherwise descriptions of the aircraft- or engine manufacturer. Legally binding are the instructions of the aircraft manufacturer, if there is no data, use the instructions of the engine manufacturer. The detachment and attachment should only be carried out by authorized personal. Detachment. Detach all harness cables from the spark plugs.
Detach ground cable from magneto Attention As soon as the ground cable is detached the ignition lick is also disabled. That leads to a HOT magneto, the engine could start. Make sure that you detach the harness cables first!.
Detach harness plate from magneto. Detach magneto from engine AttentionFor some engines the magneto drive is attached with a separate pinion gear that includes cushions.
These cushions could get lost while detaching. Watch that they don´t fall into the engine. General Information Magnetos come with impulse coupling or drive. Pinion gears are not scope of the delivery. They are delivered by the engine manufacturer, usually they are reused after inspection / overhaul.
Simple said an engine does have a right and a left magneto – motor gliders are the exception as they only have one magneto circuit. The name plate tells you the type, the year of manufacture (part of the serial number), the rotating direction, the revision, and if applicable the angle of the retard contact points.
Graphical representation: (Pinion gears are not scope of Unison-Slick). The engine needs to be timed to the upper death point of cylinder 1. That´s the timing for attaching the magneto.
The gasket can be put with a bit of grease onto the flange in front of attaching the magneto. The magneto can be attached Preparation of the engine The magneto can be attached when the ignition timing of cylinder 1 is correct (see above). Remove lower spark plug at cylinder 1. Turn the engine until cylinder 1 reaches the ignition position (check the positioning of the gear rim).
The following picture shows a gear rim with 25° positioning (in front the upper death point) Attention the positioning angle is depending on engine typ. It can be found on it´s data plate. Ignition point can be taken from engine nameplate. Attach the test equipment like described by manufacturer. Turn the engine against normal rotation approx. 30 degree, the impulse coupling should click into place. Turn engine into normal rotation until you hear the impulse coupling snatch.
Now return to the position of 10mm before the upper death point. Turn on the test equipment and rotate both magnetos until the lamps go on. Tighten the mounting nuts more. Yamaha xvs 1100 classic manual. Check your timing again. Turn the engine against the rotation way for approx.
10mm and back. The lights should be synch and go out at exactly 30 degree!. If not, correct the positioning of the magnetos. Tighten the mounting nuts with specified torque. Check again the synch and positioning of the magnetos Maybe you can´t position a magneto at the right timing.
Check if it does have a pinion gear. If it does have, turn the gear 180 degree. This will lead to half a tooth difference – most times enough to make an exact timing! Periodic inspection (see FAQ) Inspection of Slick magnetos 4200/4300/6200 & 6300 series SB2-80C defines that magnetos have to be checked every 100h externally and every 500h internally. We recommend 250h for pressurized magnetos because of the former described ozone problems.
Magneto types 4200 & 6200 also need a 1000h inspection that varies from 500h. Following SB1-89B all Slick magnetos attached to a single ignition system (motor glider) need to be inspected every 50h externally, and 250h or latest after 24month internally. Inspection of Bendix magnetos S20/S200/S1200/D3000 & D2000 series Perform a 500h inspection or - if not reached within 4years - an overhaul.
School Maintenance Manual
. This item is: Slick 4200 and 6200 Series Magnetos Service Overhaul Manual. We answer questions and will provide many detailed photos, email us: altimeters@charter.net or altimeters@att.net. The items are 'as they come' from the closed airplane stores we acquire. This item is used equipment and we are selling this item untested, without warranty or return. We buy avionic shops, instrument shops, maintenance facilities, aviation libraries, flight schools & most airplane stuff.
Maintenance Audit
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