|
Post by P<0.05 on Jul 27, 2007 16:38:30 GMT -5
OK, now I am mad....he forgot to bring his ratchet set home again....I am going out right now and buying one. I will not be able to remove the starter tonight because I don't have enough time/light. It will be done tomorrow. Please have patience with me!
Tune in tomorrow.
|
|
|
Post by P<0.05 on Jul 28, 2007 13:44:56 GMT -5
OK, guys, I took the starter off. It came off pretty easily. The kick won't turn. When the kick gears move forward to the front assembly it locks up like before, so nothing has changed.
Do I need to remove the front assembly? I tried to take off the (terminology?) flywheel with a a ratchet but it's on very tight and I don't know if I should force it.
Any ideas?
|
|
|
Post by swampsniper on Jul 28, 2007 13:56:59 GMT -5
You can't get the flywheel off without a special tool. The variator nut is probably what you are referring to, on the left end of the crankshaft. Really, you may be at a dead end. Anything further is going to take some major engine disassembly. Nothing in the variator can cause the shaft to lock solid. The stator could come loose and lock things up, but it would have made a hell of a noise. I sure can't figure how this happened. Is there a technical ed center any where around? You may find one of the students willing to help, see if an instructor will suggest one.
|
|
|
Post by P<0.05 on Jul 28, 2007 14:35:43 GMT -5
Ugh...I just bought this thing in April! It can't be dead!
I'm sure there's got to be somebody local that knows these things. Perhaps a motorcycle mechanic would do? I'm guessing I'm at the point where I will need to pay someone....
|
|
|
Post by P<0.05 on Jul 28, 2007 14:50:49 GMT -5
Can the engine be disassembled with regular tools? I'm willing to give it a shot. What do I have to lose?
|
|
|
Post by swampsniper on Jul 28, 2007 15:00:15 GMT -5
Any more disassembly means you need a place to work and a workbench, and more tools. How far away is Roberta, Ga?
|
|
|
Post by P<0.05 on Jul 28, 2007 15:11:41 GMT -5
Roberts looks to be about 85 miles south of Atlanta....
I could probably scare up a work bench that I could keep tarped...
I just went out there to mess with it a little and I found something that is probably nothing. The front assembly/flywheel...I can turn it clockwise. The it moves counterclockwise until it hits a lockup point, which is always in the same place. Is this just happening because turning it clockwise means it's not engaging the crank? Also by moving it clockwise and then counterclockwise I can manipulate the kick until it reaches that lock up point.
This might mean nothing. Or, it might just show more evidence that the crankshaft is locked.
Unfortunately, it's 4:15 and tomorrow at 6:30am I've got to head to the airport to go to DC for a week. So, it looks like I will putting this project aside until I get back.
But when I get back I am going to look into disassembling the engine to see what's locking up the crank.....
*sigh*
|
|
|
Post by mooseheadm5 on Jul 28, 2007 15:26:45 GMT -5
So let me get this straight: Currently, there is no oil in it, no plug in it, if you turn the crank backwards, you can manipulate it with the kick, or turn it forward again but only up to the point where you started. If that is correct, the next thing to do would be to check if it sucked a valve or something by pulling the valve cover, which you can do pretty easily. -Paul
|
|
|
Post by P<0.05 on Jul 28, 2007 15:30:48 GMT -5
No oil but I just put the new plug in it. It's not hooked up to the battery and the starter is out.
Yes, it sounds like it's jammed.
Whatwhere is the valve cover?
And THANKS for chiming in , Paul!
Jen
|
|
|
Post by P<0.05 on Jul 28, 2007 16:03:56 GMT -5
OK, I just went out there and took a look at the inside of the engine just in case the valve cover is an obvious thing. Here's what I found but I don't know if it's related. Forgive me I stole this image from Bob because my camera's battery died, so, giving cred where cred is due (thanks, Bob!): OK, see where I inserted the light blue-green arrow? You know how there's a large rubber part clamped onto it? Well, I just saw in my scooter how it was not connected. The clamp had come loose and the rubber part (hose?) was gaping open. I closed it. Does that mean anything? *note: I just realized it's called the air intake....
|
|
|
Post by swampsniper on Jul 28, 2007 16:09:50 GMT -5
The valve cover is at the very front of the engine. It does sound like something in the top end hanging things up by stopping the piston travel. We' ll be here when you get back, avoid DC politicians, they are dangerous!
|
|
|
Post by P<0.05 on Jul 28, 2007 17:41:10 GMT -5
OK, so I went out and took off the valve cover. It's that aluminum cap I asked you about that fluffy white stuff that you named as corrosion, right? I know that sentence didn't make sense but perhaps you got my drift. I can't see anything in it that looks caught up. Here's a couple of pics (I've been charging my battery for a bit and it had enough power to use...): One thing...I turned the flywheel clockwise after I got the valve cover off and was able to watch the "bike chain" move. It was moving "backwards", towards the back of the bike. One thing I didn't notice before is that I can only turn the flywheel, and move the bike chain, for almost a complete revolution of the flywheel before it locks. Then I can move it counterclockwise, and the chain moves forward, to it's original position where it locks. Is it just me or does it sound like something's caught in a very specific spot of the whole gearing, or something? OK, now I really do need to put this away until I get back. It's almost 7 and I haven't packed yet AND I promised I'd take my son to the bookstore to get him a book for the flight. No politicians, dangerour or otherwise. Only young injured military serviceboys. I am going to work up on some data at Walter Reed Hospital. I used to stay at a hotel close to WR but that's where all the outpatient boys stay while they go to rehab. I'd cry too much and they don't need that...some crazy Altanta woman bursting into tears at the sight of them.... Anyway, I'll be on here later to see if anyone has responded but no more digging around the scoot until I get back. Thanks so much! Jen
|
|
|
Post by swampsniper on Jul 28, 2007 17:49:47 GMT -5
OK, I just went out there and took a look at the inside of the engine just in case the valve cover is an obvious thing. Here's what I found but I don't know if it's related. Forgive me I stole this image from Bob because my camera's battery died, so, giving cred where cred is due (thanks, Bob!): OK, see where I inserted the light blue-green arrow? You know how there's a large rubber part clamped onto it? Well, I just saw in my scooter how it was not connected. The clamp had come loose and the rubber part (hose?) was gaping open. I closed it. Does that mean anything? *note: I just realized it's called the air intake.... Could have inhaled something .Maybe got through to the cylinder. Those pics in the gallery are for everyone to use, BTW ;D
|
|
|
Post by 12string on Jul 28, 2007 20:20:45 GMT -5
All this does not sound good. I suspect a broken rod. It does not make sense though because the scoot was running fine when Jen shut it off. I did have a V-8 boat engine break a crank on shut down once. Stranger things have happened. I think Jen is going to need some help, I think she is in over her head.
|
|
|
Post by Aaron on Jul 28, 2007 21:30:43 GMT -5
Got to give the lady credit though.. she has tackled more than most would. Kudos Jen! Keep at it. At worst you can get a new engine and bolt it in. From what you've done thus far that is probably a reasonable thing for you to try to do on your own. Hopefully it won't come to that...
Aaron
|
|
|
Post by swampsniper on Jul 28, 2007 22:04:45 GMT -5
Roketa needs to get on this one, although the "CARPI" thing has me confused. Is someone now cloning Roketas?
|
|
|
Post by scottfla on Jul 29, 2007 6:35:48 GMT -5
Nope, my friend's Roketa Tahiti has lettering that says 'Special Editlion'.
|
|
|
Post by scootingrandma on Jul 29, 2007 10:27:44 GMT -5
OK, so I had to go out and look. I bought a Capri 150 online as well and when I looked, it does say "CARPI" 150 I wish you luck Jen and hopefully everyone can get this scoot up and running! Grandma
|
|
|
Post by jspencer on Jul 29, 2007 10:48:04 GMT -5
Any possibility the timing chain has jumped a few sprockets? Would that cause something like this? If she removed the timing chain, she could see if both the cam and the crank turn independently. But now we're getting into major engine disassembly.
Jen --At a certain point you have to think about how much your time is worth and cut your losses. Depending on how you evaluate your time, it might be cheaper to buy a new scooter. It sounds like you're getting pretty close to that point. Getting a new scooter doesn't preclude making a warranty claim to Rocketa about this one.
Jon
|
|
|
Post by mooseheadm5 on Jul 29, 2007 12:27:03 GMT -5
Good luck with the warranty claim, it has been longer than 30 days! When she gets back, we can talk about pulling the intake manifold and exhaust to see if the valves are still intact. Maybe one of them lost a head. If the motor is shot, they are cheap to fix, or she could sell it and get another. But for heaven's sake, don't go scaring her like that. She got this far, she can go on. You can by a whole engine for like $150. Or, go to 180cc. -Paul
|
|
|
Post by RetroAJ on Jul 30, 2007 10:18:15 GMT -5
The only bad thing about going to 180cc on this style of scooter, is there is no performance exhaust that will fit. At least none I can find. Or I would have done it already.
*A J*
|
|
|
Post by mooseheadm5 on Jul 30, 2007 14:00:14 GMT -5
That's when I reach for the mig welder... -P
|
|
|
Post by artekuna on Jul 31, 2007 22:47:48 GMT -5
You need an Impact Wrench to take off the Variator and/or clutch. I just had to buy one when I replaced my stock rollers with slider roller weights to improve acceleration on my scooter. They're like $50 or so for a regular one from an auto-parts store or hardware store. You can get a De-Walt (name brand) Impact but it's about $200 and it doesn't do anything different than a regular.
|
|
|
Post by earlwb on Aug 2, 2007 15:32:59 GMT -5
|
|
|
Post by gamedad on Aug 4, 2007 17:16:33 GMT -5
Hello! First let me introduce myself, I am not a scooter mechanic. In fact, if my luck holds, I`ll be a new scooter owner in about a month. However, I was an engine mechanic/builder for about 10 years, so I hope I can help. To me this sounds like mechanical interference near TDC, or Top Dead Center. This can be caused by a tight (REALLY tight) valve, broken valve, foreign object, or (most likely) a mis-timed camshaft (or slipped camshaft chain). You deserve the highest respect for delving into the mysteries of the internal combustion engine as far as you have, already! These guys, here, seem more than capable of walking you through the procedures to check these things, and I'll leave it to their experience to help you through this. Yes, it is possible you have a broken rod, or such, but check the cheaper things, first, I say. If, however, the engine was run without oil, for any amount of time, forget it, it`s toast. I hope this is not the case. AS far as I can tell, a replacement engine will still cost less than a new bike, but that's up to you. Good Luck, and keep at it, you're learning so much that will help you in the future!!
Gamedad
|
|
|
Post by Andy on Aug 10, 2007 14:12:01 GMT -5
Pull your spark plug out... Maybe it was just too much pressure for you to turn over by hand?
|
|
|
Post by earlwb on Aug 10, 2007 15:54:59 GMT -5
Well before one pulls the head off the engine, make sure the kickstarter gears haven't jammed up or something behind the variator. A weight or spring tine on the variator may be loose and it is catching on the crankcase or kickstater gears. heck there might be a loose nut or bolt in the CVT that is causing it too. I would suspect something about the electric starter or kickstarter came loose and got caught in the engine someplace. if that doesn't look to be the problem, then check the side fan unit where the alternator is. Someone earlier has had the end tip of the crankshaft break off which was weird. But maybe a magnet on the alternator came unglued or the alternator stator came loose or something and it is hanging up on it. of course pulling the fan flywheel off isn't too difficult but you need the special tool to do it with. After that, I guess one has to pull the head off and see if the piston is moving up or down or not. if the piston isn't moving up and down like it should, then the rod let go. That means you have to split the crankcase halves and get into the engine to replace the crankshaft assembly with another one. Unless you are doing the work yourself, it might be cheaper to get a replacement GY6 engine.
|
|
2forthat
Junior Dawg
I got the Scoots......:-)
Posts: 8
|
Post by 2forthat on Aug 10, 2007 19:30:09 GMT -5
Hey P<0.05,
Hope the trip to DC went well. Been reading along from the start and am like a kid following the next serial in a B grade western. Any new developments?
|
|
|
Post by tomtom on Aug 16, 2007 22:44:13 GMT -5
Jen, I've never torn down a scooter engine, but in the two pictures of the valve cover removed, one of the valves looks pretty funky, like it got really, really hot. If so, then your engine may have seized up after you shut it down. Maybe Stan or one of the other guys can tell from the pictures if it is a problem. Good luck and I think you're doing a great job!
|
|
|
Post by scottfla on Aug 17, 2007 15:39:08 GMT -5
Hey Tomtom, check your private messages
|
|