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That's easy. It's a tape measure and it goes in your toolbox! Now what the hell is that friggin thing underneath it?
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If it didn't have those big aluminum bumpers on each end I'd opt for hammered Wrist Pin from an engine.
Well it is a wrist pin! Good job.
Thats the first wrist pin I've seen with such largly tappered ends...
What kind / brand of engine? With such a large bore and flat top piston, a big block of some sort?
And the rings seem really deep (far from the top of the piston) like maybe a diesel.
ETA:
Googled the piston markings and looks like its from a prop plane engine. Continental brand.
And the rings seem really deep (far from the top of the piston) like maybe a diesel.
ETA:
Googled the piston markings and looks like its from a prop plane engine. Continental brand.
Well it is a wrist pin! Good job.
Yep. Continental TSIO-520-WB installed on my 1976 Beech 58P. That piston has about 1100 hours of use. We ended up replacing all the jugs after we found this.
View attachment 48893
Turns out ECI had a bad batch of jugs. All of ours fell in the serial number range. The inside looks nice and clean for those hours though.
View attachment 48894
You maintain the AFR via EGT? Looks lean from the burn. Almost thought it was from an alcohol fuel but those keep pistons clean. Q? Is it a bearing on the wrist pin or a bushing and why is it so torn up?
At least its good you found the problem with all three wheels on the ground...
I'm glad I found it on the ground too. All the gauges checked fine on the run up. The plane just didn't feel right. So, I told the pax we were not going, taxied to MX, took the cowling off and found the bad piston.
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Corvair car engine. Converted for aircraft use? I am assuming for a homebuilt LSA.
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