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Any words of advise on a Saito 90T, 90TS or 100T? I’ve pretty much settled on wanting a 90TS because it’s a true boxer whereas the 90T & 100T run off a single crank pin. I think they also have more vibration than the 90TS but have no practical experience with any of these engines.

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Join Date: Dec 2001
Location: Colonial Beach, VA
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Any words of advise on a Saito 90T, 90TS or 100T? I’ve pretty much settled on wanting a 90TS because it’s a true boxer whereas the 90T & 100T run off a single crank pin. I think they also have more vibration than the 90TS but have no practical experience with any of these engines.

A 100 T I rebuilt


Got to agree, run the same ones and then some. Rebuilt them from the sweet little 60t up to the 300.
The odd fire tend to run a bit stronger and sound better too.



The odd fire tend to run a bit stronger and sound better too.





Join Date: Feb 2006
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This shaft and bearing where both brand new. It took 2 hours of run time to destroy it. He set the bearing on a steel tube and put the shaft in it. It didn’t go on so he took a sledgehammer and drove it on. Instead of putting the bearing in a hot oil bath. He said he packed the bearing really good with grease and couldn’t figure out why it burned up.

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So the 90T is more powerful than the 90TS?
I’ve read that some have experienced crankcase oil draining issues with the 90TS.

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Hangar 9 Cessna 62, it was called.
Thanks Mike, some guys didn't like the 15.5 to 1 compression.
I haven't always rebuilt Saitos, this is a Fox 50 I built from all used parts.
Here is a Fox .50 I made out of used spare parts, a .46 badly beat up crankcase, used piston and ring and cylinder, BOCA bearings, EZJust carb and MVVS 3245 muffler. The prop is a Graupner 10.5x6 in a Hobby-Lobby/Kavan backplateless spinner.