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Parts Availability for O-290 Engine
http://thorp18.com/thorpforum/viewtopic.php?f=48&t=8182
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Author:  kenys [ Mon Dec 25, 2017 6:35 pm ]
Post subject:  Parts Availability for O-290 Engine

I am considering buying a Thorp T-18 now for sale. The engine was originally an O-290 GPU. John Thorp rebuilt the engine into what is said to be essentially an O-290 D with a different crank, cam, and other things. My concern is the availability of parts today and the best guess of how long these parts will be available. Thanks, Ken

Author:  Jeff J [ Wed Dec 27, 2017 7:56 am ]
Post subject:  Re: Parts Availability for O-290 Engine

I have seen a couple of posts recently about pistons and rings becoming available. As for the rest I found this: viewtopic.php?f=35&t=6756

Author:  Binder [ Sat Dec 30, 2017 8:11 am ]
Post subject:  Re: Parts Availability for O-290 Engine

DanaL has new piston and ring sets for cheap. I have the rings when I did the top end of my 290 in August. Stock are 6.5:1 and he has 8:1 or 10:1. They weren't available when I did mine and the Pistons looked good so I just used rings.

As for other parts they are becoming scarce although they can be found. Gibson in Oklahoma rebuilds parts from them such as cams, cranks and cylinders. As long as it's an experimental engine you should be able to find parts for it. Getting tagged parts for certified might be tricky although the 1set of cast rings I have are pma and from eci.

Author:  DanaL [ Sun Jan 21, 2018 8:26 pm ]
Post subject:  Re: Parts Availability for O-290 Engine

For experimental internals from O-320 will work in the O-290. I have all the pistons, pins, buttons and rings available. $1295/set of 4 cylinders.

Author:  1albee [ Mon Jan 22, 2018 4:10 am ]
Post subject:  Re: Parts Availability for O-290 Engine

Lou from Dixie Fried Fabricators has a complete overhauled 0290G for sale.

Phil
118BC

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