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General Minitrail Talk
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Another custom nice engine
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<blockquote data-quote="fatcaaat" data-source="post: 202311" data-attributes="member: 1656"><p>Kirby, before you buy the kit, allow me to be the guinea pig since I have another kit sitting here waiting for a couple of engine cores to ship out of Thailand...not sure when I'll get them, but they have been ordered and paid for. Based on my experience so far, I am going to predict that the cam chain thing will be an issue, but I cannot confirm that yet. However, I guess I don't consider it an issue anymore...I consider it something that would have been great if it were disclosed or understood rather than dealing with it as a discovery. The solve is easy and cheap, but it's just knowing whether or not you have to do it is all. </p><p></p><p>Balancing the assembly...i consider that everything attached to the crankshaft is that, outside of the piston. I say no piston because it would be impossible to fine balance it with a piston without having very specific equipment. Generally speaking, manufacturer's make parts within a tolerance and when you bolt it all together, those tolerances stack, but still need to be within a parameter. My approach was to improve each individual parts tolerances and balance, then assemble and mark, and balance the unit. That way, it can be put back on the same way it was balanced. But on my setup, the only things that can be clocked would be the crank drive gear and the mini outer oil sling. On a stock nice crankshaft, the only thing that can be clocked is the oil sling...so once you balance things, you just need to make sure the oil sling goes on the same orientation. balancing things is just slow and meticulous, and you can find videos on what you're looking for. For me, i only made adjustments to the flywheel and the crank ways, but if i were to balance a stock nice assembly, i'd assume i'd have to make adjustments to flywheel, crank ways, and the sling. </p><p></p><p>For fueling, i'm going to pull the tank and have a look to see what's going on.</p></blockquote><p></p>
[QUOTE="fatcaaat, post: 202311, member: 1656"] Kirby, before you buy the kit, allow me to be the guinea pig since I have another kit sitting here waiting for a couple of engine cores to ship out of Thailand...not sure when I'll get them, but they have been ordered and paid for. Based on my experience so far, I am going to predict that the cam chain thing will be an issue, but I cannot confirm that yet. However, I guess I don't consider it an issue anymore...I consider it something that would have been great if it were disclosed or understood rather than dealing with it as a discovery. The solve is easy and cheap, but it's just knowing whether or not you have to do it is all. Balancing the assembly...i consider that everything attached to the crankshaft is that, outside of the piston. I say no piston because it would be impossible to fine balance it with a piston without having very specific equipment. Generally speaking, manufacturer's make parts within a tolerance and when you bolt it all together, those tolerances stack, but still need to be within a parameter. My approach was to improve each individual parts tolerances and balance, then assemble and mark, and balance the unit. That way, it can be put back on the same way it was balanced. But on my setup, the only things that can be clocked would be the crank drive gear and the mini outer oil sling. On a stock nice crankshaft, the only thing that can be clocked is the oil sling...so once you balance things, you just need to make sure the oil sling goes on the same orientation. balancing things is just slow and meticulous, and you can find videos on what you're looking for. For me, i only made adjustments to the flywheel and the crank ways, but if i were to balance a stock nice assembly, i'd assume i'd have to make adjustments to flywheel, crank ways, and the sling. For fueling, i'm going to pull the tank and have a look to see what's going on. [/QUOTE]
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Another custom nice engine
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