Swapping engines

[JFP in PA]

Originally Posted by LoneWolfGal

Hmmm... Jake Raby or Charles Navarro referred to it as a bushing in one of their videos. It sure looks like a bushing to me. JFP?

That aside, thanks for the kind words.

Mechanically, it is a bushing that is serving as an oil fed bearing.

[piper6909]

Originally Posted by JFP in PA

Mechanically, it is a bushing that is serving as an oil fed bearing.

Generally, if there's high speed and/or high load its called a bearing. Think main and rod bearings. They are really bushings, but given their application they're called bearings. The same would apply to the solution.

[JFP in PA]

Originally Posted by piper6909

Generally, if there's high speed and/or high load its called a bearing. Think main and rod bearings. They are really bushings, but given their application they're called bearings. The same would apply to the solution.

Think of the small end of the connecting rod on an old style V8 engine: to allow the piston wrist pin to properly float, the small end of the connecting rod has a bronze sleeve bushing pressed into it with annular oil groves in it to permit lubrication; when in operation, that sleeve becomes an bearing.

What it is is all a matter of semantics: a mechanical engineer would call the Solution a bushing because of its design features; in function, it is an oil fed bearing.

[LoneWolfGal]

I measured and marked the cutout for the notch to my satisfaction. It's 20mm wide, which provides room to put a 13mm deep socket on the oil fitting. Note my aforementioned patent-pending seal for the opening, fabricated from thick, extra-sticky Gorilla tape. How sticky? It took a lot of pulling to peel the prototype off. It seals the opening tighter than a bull's rear end at fly time (one of my dad's expressions, approximately). Not a chance of aluminum particles from grinding getting past the seal, but as belt and suspenders I stuffed a paper towel in the opening before sealing it. I'm ready to grind the notch. Unfortunately, that will have to wait until tomorrow due to a previous commitment.

[piper6909]

Originally Posted by JFP in PA

What it is is all a matter of semantics: a mechanical engineer would call the Solution a bushing because of its design features; in function, it is an oil fed bearing.

Exactly: All a matter of semantics. Like I said about main and rod bearings. They're bushings, but given their application they're called bearings.

[LoneWolfGal]

I'VE GOT IT! It's a bearinglike bushing. Or a bushinglike bearing, take your pick. Whichever it is, it's unlikely to fail, and that's all I care about.

[LoneWolfGal]

By the way, my next-to-last post contained proof that I'm getting a handle on my OCD-Lite. There was a time when I would have spent hours carefully cutting out the seal with an X-Acto instead of scissors, and I would have made sure that the marking lines for the cutout were straightedge-perfect. These days I'm deliberately freehanding, and that's an example. I've found that in general it's more fun and doesn't take nearly as much time. (Time, as it dawns on everyone sooner or later, is the most precious commodity of all.) Nevertheless, the notch itself will be as machinelike perfect as I can make it. Because as long as I'm performing the sacrilege of defacing the crankcase, the least I can do is make it look like it belongs there.

[JFP in PA]

Originally Posted by piper6909

Exactly: All a matter of semantics. Like I said about main and rod bearings. They're bushings, but given their application they're called bearings.

Not all bushing are bearings, but all bearings are bushings

[piper6909]

Originally Posted by JFP in PA

Not all bushing are bearings, but all bearings are bushings

Thanks, Captain Obvious.

[LoneWolfGal]

Not quite finished but getting there. Unfortunately, I have to go out to dinner, so finishing touches will have to wait until tomorrow.