Skytec C12ST2 O-200A

[8142]

I purchased O-200A that came with Skytec C12ST2 starter. It’s my understanding that starter uses a external solenoid to engage the starter using key-type or push switch. My question is why couldn’t I remove jumper between S and power terminal and install push button just like you would if you have a C12ST2/S pull type starter?
If I unable to do that is there an STC to install a key type or push button switch and solenoid in Cessna 140?
Last option is to purchase KCST2 which comes with C12ST2/S, push start switch and STC. But, I will need to remove or cut out starter shaft.

Thanks

Stephen

[6597]

I don't see a solenoid on their installation but I do and have actually seen them on the B&C installation. Your idea of removing the jumper is actually in the instructions for a push start installation conversion.

With that said, when I overhaul my engine soon there is a notation on the installation to simply remove the starter pinion, of which I'm curious if that is a sound idea rather than just cut it flush.

Here's some downloads to peruse, we'll see who chimes in.

[6298]

With that said, when I overhaul my engine soon there is a notation on the installation to simply remove the starter pinion, of which I'm curious if that is a sound idea rather than just cut it flush.

I always cut it flush. With the engine apart I use my lathe. Some O-200's had the needle bearings for a starter and there were oil ports that fed that area, so leaving it out would lead to pressure issues. I like the push button better than the key start.

[phil123]

I put an sts-s12 solenoid:
https://www.aircraftspruce.com/catalog/ ... gII5PD_BwE

and a 16050-2 diode:
https://www.aircraftspruce.com/catalog/ ... idassy.php


on my plane, the fuse, starter button and wires were aircraft grade. I think what you will discover is the skytech starter is the best that's out there now and trouble free.

[6597]

I'm trying to wrap my head around the need or advantage for a starter solenoid for the Skytec when I'm coming from a pull starter arrangement where the battery power goes direct to a starter terminal and the starter has a simple contactor switch arrangement. What am I missing?

[6643]

I may not be understanding your question. The Skytech starter incorporates a solenoid that both engages the starter pinion and powers the starter motor. Nothing else is needed. You put the push button switch in the hole where the pull cable was and wire it to supply 12 volts to the solenoid terminal of the starter.

[6597]

That's what I thought. Keep it simple.

[8474]

Between the documents David uploaded and John's advice, this should be pretty obvious. From those documents it's clear as John says that the starter incorporates a solenoid. It's also clear if you read the instructions that if you want to have a push button you remove the jumper and use the SKY-TEC KCSW KIT available from ACS.

[phil123]

My bad my plane is wired up lke a cessna 150 with the jumper. The skytech starter has built in solenoid use it or not depending on key start ( newer Cessna 150) or pull start style. Thought I knew everything but no The Q and A from spruce is blurry on this subject if you read it.