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Model C12ST2
Fits C-85-12 thru
O-300-A, -C

 

Model C12ST3/C24ST3
Fits O-300-B, -D thru
TSIO-550

 

 

 

 

 

 Converting a Pull-Start...

 

Continental Starters

 

Sky-Tec Flyweight Starters for Continental aircraft engines feature superior design features over old, heavy, stock OEM starters including:

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Incredibly reliable design

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All-in-one bolt-off/bolt-on installation

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Eliminates continuous duty clutch on smaller series engines

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Positive disengagement eliminates wear while your engine is running

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Significant torque increase/multiple gear reduction

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Decreased current draw

 

Sky-Tec starters are covered by a 2-year factory warranty.

 

Caution before buying any starter which mounts into your engine's oil bath (ST2 Model Caution).

 

For Continental A75-12 through O-300-C Engines For Continental O-300-D through TSIO-550 Engines

CvST2 CvST3
9.2 lbs. 6.5 lbs.

equipped

 

If your aircraft has a pull-type starter, installation will require some modifications:

 

Your pull starter mechanically engages the starter drive while simultaneously supplying power to the starter motor.  The Sky-Tec C12ST2 engages electromechanically so you must do two things:

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Order the "kit" (KCST2) which includes a C12ST2/S starter, push button, wiring harness, STC's and instructions.

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Replace your pull-start "T-Handle" (or knob) with the push-button switch and wiring harness in the kit.

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Cut-off the shaft in the rear of your engine upon which your pull-starter's pinon gear used to ride.  This can be done by following the STC modification instructions.

 

If your aircraft has been previously converted from a pull-starter:

 

Ah, this one's easy!  Just order a C12ST2/S from your favorite dealer, install and enjoy (we even include the gasket).  The /S will be a "short-nose" starter that will clear the previously cut-off pinon gear shaft inside the rear of the engine. 

 

If your aircraft was manufactured with a push button (or mag switch) starter:

 

Another easy one.  Order a stock C12ST2 starter from your favorite dealer, install and enjoy.  We even include the gasket!  The stock starter has a small dowel boss on the nose of the starter that will reside within the needle bearing inside the rear of the engine.  The only purpose for that dowel is to keep your bearing needles from falling out.  There is no need to pull the bearing.

 

What if you're unsure which engine you have?

 

Take off the accessory case on the rear of your engine.  Look inside, toward the top most area of the cavity.  If you see a hole (actually, that's the inside of a needle bearing), order the stock C12ST2.  If you see a flush-cut shaft, order a short-nose (C12ST2/S).  If you see a shaft, order the KCST2 conversion kit.

 

How much does it cost?

 

Please visit our dealers' websites for the latest pricing, but currently the C12ST2 is being offered for less than $550 while the KCST2 is running under $600 in most cases.

 

ST2 Model Caution

 

equipped

 

Safe for ALL TCM starter adaptors!

 

The new CxxST3 starter has been redesigned from the ground-up to achieve incomparable, aggressive design goals:

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Incredibly low weight (only 6.5 lbs!);

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Aggressive gear reduction for high torque w/low current draw;

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A patent-pending, common-sense design that eliminates the majority of "broken spring" scenarios that occur so frequently on TCM's  new "improved style" (their quotes, not ours) starter adaptors;

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Nearly instantaneous release of the starter adaptor wrap spring virtually eliminates starter-induced adaptor wear;

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Approved and recommended for ALL starter adaptors ("classic style", "improved style", "permold", "sand cast", etc.);

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A simple, easy-to-install, bolt-off/bolt-on, maintenance-free starter that fits the entire "large" series Continental engines (with right-angle starter adapters) from O-300-D through TSIO-550 engines;

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Highest torque possible with minimal current draw (you're going to LOVE how it cranks those Continental-powered Cessna's with the battery way in the back!);

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Attractively designed and affordably produced making it the first and only choice in lightweight large Teledyne Continental engine starters.

 

How is the Sky-Tec starter different?

 

The ST3 starter incorporates an innovative clutching system which enables the starter to engage the TCM starter adaptor while powered and completely disengage the powerful permanent magnet motor while the starter is unpowered.  This positive disengagement allows the TCM starter adaptor to fully unwrap under all normal operating conditions thus greatly prolonging starter adaptor life.

 

How do I know which one to buy?

 

This one is pretty easy!  If your TCM engine has a right-angle starter adaptor at the rear of the engine, chances are this starter is the right one for your application.  Consult our extensive aircraft fit guide just to be sure.

 

How much does it cost?

 

Please visit our dealers' websites for the latest pricing, but currently the C12ST3 is available for under $550 while the C24ST3 is running under $600 in most cases.

 

CvST2 Resources   CvST3 Resources
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Comprehensive C12ST2/S Installation Certification Page
(Includes all relevant drawings)

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ST2 Installation Drawing

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Wiring a Push Button C12ST2/S Installation

Click to Enlarge Diagram

 

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Wiring a Key Start  C12ST2 Installation

Click to Enlarge Diagram

 
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ST3 Installation Drawing

 

 

  Converting a Pull-Start?

It's not difficult at all.  Read through Sky-Tec's STC instructions for the conversion to understand the process.  A&P's, check out our comprehensive starter conversion certification page with all the resources you'll need to prepare submit your 337's for installing the Sky-Tec C12ST2/S starter (KCST2).

 

 

  "Someone told me to never install a permanent magnet starter on a TCM starter adaptor!"

 

Ah, the amazing Mis-Information Super Highway...  

 

While Sky-Tec continues to support hundreds of happy permanent magnet starter (ST1 Model) customers with large Continental engines (and LONG starter adaptor life cycles!), we have developed the ST3 largely to satiate the rare customer who is concerned their particular TCM starter adaptor may not be completely up to task with the new generation starter motors.  And while  every effort has been made to minimize the likelihood of a starter contributing to the premature wearing of the TCM starter adaptor, due to their very design and especially the nature by which TCM starter adaptors have been maintained in the field, Sky-Tec can make no warranty with regard to TCM starter adaptor failure or premature wear.   We of course will stand behind our starter and repair or replace any failed starter components as a result of quality or workmanship as per the standard Sky-Tec warranty policy. We believe there is no better, safer starter on the market today for your large Continental engine. 

 

 

 

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