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Home✈️Aircraft🚁HelicopterKyosho Caliber/Quest Neo-Caliber series › Question on Nexus Side Frame? Please Help.
11-03-2013 06:57 AM  5 years ago
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hoversmooth999

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Jourdanton,TX United States

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Question on Nexus Side Frame? Please Help.
OK Guys,
Havent had much luck getting answers, maybe somebody can help me on this one? I just got a spare frame for my Nexus and noticed something different from my current frame and now seen this deviation on several other frames from internet pictures. To the point: The lower hole on each side frame that aligns with the lower hole on each side of the starter shaft bearing block is enlarged on this spare frame set. Larger than the upper hole. In fact, the lower screw going through the hole had a piece of silicone tubing around it to fill the extra space on each side. I have seen this same larger hole on other frames as well, as I mentioned before. Both the lower and upper holes on my current frame are the same size. I didn't know if this was some sort of modification or something? Please, can someone help me? THANKS.
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11-03-2013 11:11 AM  5 years ago
dc8capt

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Clark Lake, Michigan USA

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What model?Learning to fly again.
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11-03-2013 04:03 PM  5 years ago
hoversmooth999

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Nexus 30
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11-03-2013 05:19 PM  5 years ago
dc8capt

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The one I have both holes are the same. Mabe someone drilled them out to help mesh the gears.Learning to fly again.
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11-03-2013 10:20 PM  5 years ago
hoversmooth999

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The lower hole is not elongated though it is rounded. And what about the silicon tubing around the screw. Was this possibly some simple form of tensioner for the motor pinion against the main gear? Easy way to strip the main gear if you ask me.
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11-05-2013 10:30 PM  5 years ago
hoversmooth999

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Come on now guys I see a number of views at this page, but no comments. With some luck, I came across another complete Nexus today for a remarkable 50 dollars. It appears the previous owner did the same thing with the bigger lower holes. Keep in mind, not elongated for forward or backward gear mesh adjustment, but just big and round. Enough for the head cap of the screw to go through without the silicon tubing. Apparently several people have done this. I will take comparison pictures if anybody wants to see. Please Help. Thanks.
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11-14-2013 05:51 PM  5 years ago
plck2

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post pictures
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03-24-2014 11:47 PM  5 years ago
slickporsche

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Nexus Question
Seems strange to me too. I still fly my Nexus, and have a lot of fun with it. I would not want that piece of silicone tubing on it. I have never heard of that one. Then again you should post a pic of it and maybe we would know better what it is.

Actually the holes may be there to gain access to the tail pinion gear set screw, and the silicone tubing would be there to guide the tool. Maybe! That would be my guess. If that gear becomes loose for whatever reason, you would need to split the frames to do the fix without the hole.
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04-11-2014 05:24 PM  5 years ago
mustang67ford

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Central Pennsylvania

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I also say post pictures. I had flown nexus helis for a while and still have some manuals.Team HeliProz - Retired
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06-02-2014 02:38 PM  5 years ago
hoversmooth999

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Hey Guys, been a while since I responded here but I have posted some pictures. I just accidentally posted it in a new post. Please go there for the pictures and ill see if I can post the pics here too.

Here it is.
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06-02-2014 05:31 PM  5 years ago
mustang67ford

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I'll check my manuals, but it looks drilled out for some reason to me.Team HeliProz - Retired
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06-02-2014 11:16 PM  5 years ago
hoversmooth999

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Keep an eye out for the frames you purchase online or from swap meets, especially used, because this is not the only frame like this. I have several with holes like that. I thought it may have come from previous owners crashing which in turn; head stops, motor keeps turning, pinion gear pops back which cranks back on the starter shaft block. And also strips the main gear. Just my thinking since I have mainly seen it on the lower holes.
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06-03-2014 03:19 AM  5 years ago
mustang67ford

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I checked my manual and it looks like each of the holes are countersunk. They take a M3x12 bolt with a 3x8mm washer per hole. It appears that the bolt head top ends up being flush with the face of the hole. With a 8mm dia washer, each hole will start with at least an 8mm ID but at some point go to a smaller diameter. Looks like your frame hole stays 8mm the entire length which is either a defect or was drilled out for some odd reason.Team HeliProz - Retired
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06-03-2014 06:23 AM  5 years ago
hoversmooth999

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As per my post earlier, I have several frames that I have purchased like this, three already as backups. My current flying bird is just as you described with adjustment on the lower hole, fore and aft for gear mesh. Just as a notice to anybody buying any spare frames for their beloved Nexus, take a good look at the product before buying. Matt at Tailwinz is a great guy to deal with if parts are ever needed and he has always taken care of me.
Also: I can provide some more photos of other frames I have if anyone wants to see them too.
Thanks Mustang! :-)
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09-12-2014 05:36 PM  4 years ago
rscott

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Cedar Rapids, IA

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From my 1996 nexus manual.

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09-13-2014 12:58 AM  4 years ago
mustang67ford

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Central Pennsylvania

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That explains it right there. Never knew they had different frames. That must have been the earlier version as the later frames didn't need the fuel tubing.Team HeliProz - Retired
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