SkyTec v Prestolite Starter

[nobubbles63]

I wonder if anyone can help with a quick query. Hoping to avoid taking cowlings off to answer this one....
RV7A flying....I have an O-360 which is fitted with the lightweight SkyTec starter motor. I am dealing with an aft CG issue and looking at pulling it forward, but not about to invest in a CS prop. Currently I have the Sensenich FP prop fitted.
Can anyone tell me if it is a straight swap in/out to do the change from the SkyTec to an older Prestolite MZ4222 starter? I see on the Lycoming parts list they mention/show a LW12083 switch alongside the Lycoming starter motor LW15571/MZ4222.
Are there any wiring changes I need to make as I am hoping this is a temporary solution to the problem with a CS prop coming in the future, in which case trhe SkyTec will go back on. Is the solenoid part of the Prestolite starter?

[Red Mtn flyer]

The 'switch' you're seeing is the power relay, not the solenoid. The solenoid is integral to that starter. If you have a starter relay in your bird [I'd be surprised if you didn't], should be a straight wiring hook-up. Note that the power cable may well be a different length, so you'll have to accommodate that; a 'loop' in #2 or #4 cable is not practical. I keep a specially bent wrench specifically for those mounting bolts...
Remember to specify 122 vs 149 teeth to match the ring gear. I have a 149 Prestolite take-off on the shelf, but shipping doesn't make sense for you.

[nobubbles63]

Thanks Ben. The Lycoming catalogue shows that the MZ4222/LW15571 is the correct starter for the O-360A1A but no mention of the amount of teeth on the ring gear. I'm hoping that it is therefore the correct starter.
Yes, I do have a starter switch/relay at the firewall so just the replacement motor on it's own (with the integral solenoid) should do the job.
Derek

[Red Mtn flyer]

Only way to be sure is to count the teeth on the ring gear... Unless it was AT THE FACTORY, I wouldn't trust just using the parts catalogue. Too many variants of these engines, and there's no practical operating difference, so swapping the gears is done a lot.
Havin' fun, we are.

[WingsOnWheels]

You may want to consider a steel crush plate (I know, aluminum prop, so not really a crash plate). Saber should be able to hook you up. Probably cheaper than a new starter and farther forward.