Sophomore Rider
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Post by phssthpok on Aug 1, 2015 20:37:13 GMT -5
Lost a cam bearing.
Drat.
Replacement cams are cheap enough and easy to install...worst part is knowing that there's some little steel balls roaming around in the bottom of the crank case. With any luck the magnetic drain plug will help capture them.
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Post by horace on Aug 2, 2015 14:02:32 GMT -5
Small Brass balls ( pun intended ) or Aluminum may cause an issue. ( I just wanted to work brass balls into a thread somehow  ) Just pick up the scoot and shake it around until the balls drop...... Sorry I'm being a bit cheeky this morning. Real advice---- Poke around the innards with a magnetic probe and flush out the system repeatedly...... Sorry I just could not help myself. Really Real advice---- I hope you at least you got a smile from my bad jokes....When you do get things apart, please take the time to flush the system thoroughly- Make sure all your balls are accounted for Good Luck and please don't mind my lack of humor. Keep us updated on the situation!!!! |
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Sophomore Rider
Currently Offline
Posts: 163
Likes: 15
Joined: Aug 20, 2013 13:54:34 GMT -5
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Post by phssthpok on Sept 6, 2015 9:35:25 GMT -5
Double Drat. I thought I got all the balls out when I installed the cam. Apparently not, as the engine is now Frog's Assed (as in: Locked up tighter than a ...) It won't turn forward or back.  Sooooo... new engine it is! Should be here in about a week and a half.  As for the old engine.. let's just say I've REALLY been doing some pondering lately....  |
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Post by pistonguy on Sept 6, 2015 19:31:27 GMT -5
YA Bra I got Busticated cases latin round from dudes who wouldn't do a case split to get the pieces out.
You won't find nuthin till she fires up. then boom
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Post by horace on Sept 10, 2015 16:57:02 GMT -5
I suddenly have a craving for Frog Legs Honestly, I'm just glad you're being a good sport. This is the kind of thing a lot of folks would be dissing the quality of China scoots about...... So um, I suspect you have some parts for sale? Just kidding around. |
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Sophomore Rider
Currently Offline
Posts: 163
Likes: 15
Joined: Aug 20, 2013 13:54:34 GMT -5
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Post by phssthpok on Sept 27, 2015 19:32:09 GMT -5
So I *finally* got a full weekend off and was able to do the engine swap. I had to request Saturday in writing to do it. (This paycheck is going to suck, as I'll *only* have 50 hours for the week  The lock-up was not caused by a free range ball bearing as I thought, but a bent valve!  The valve is so bent that it hung up on the lip of the combustion chamber on the head. I'm not sure how I managed to bend the valve. I was quite careful to put a twist-tie on the timing chain link directly above the 'mark' on the old cam before removing it, so I could be certain of having it lined up properly on the new cam.  Funny thing is, I actually had it running for a few moments before it locked up. It was running fine...I shut it off to button some things up, and when I went to restart it, all I got was a whiney-buzz from the starter (power flowing, but locked up and unable to spin). Adding insult to injury, I managed to bugger up the spark plug threads (not sure how... I'm usually quite adept at NOT doing that!) so it looks like I'm buying a new head for the old engine.  (Between the time and cost of repairing the valve issue as well as the stripped spark plug threads, it's a better financial decision to just get a complete new head assembly) Since I yoinked all the PAIR stuff from the chassis when I put the non-emissions head on, I had to plug up the PAIR orifices on the new engine. I did this by 'chewing' a piece of aluminum foil into a solid mass, stuffing it into the PAIR port on the head, covering that with a quad-layer folded piece of foil as a gasket of sorts, and bolting the PAIR tube back in place. This is a super temporary solution until I can whip up a real block-off plate at work later on this week. HOWEVER...The new engine is installed and purring like a kitten.  I still have to swap the variator/belt from the old engine, recharge the battery (hopefully not have to buy a new one), and figure out why my rear tire is flat (!), but for now she's back on the road...or will be in a day or two when I'm able to ride her back from where she broke down/I was working on her (Approx 35 miles from home). |
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Post by JerryScript on Sept 29, 2015 14:28:40 GMT -5
Bent valves almost always occur when the valve spring keys come out, allowing the valve to drop. Had that happen to me once, but I was lucky enough to only have to replace the head.
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