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Post by drawkward on Jul 3, 2010 16:05:49 GMT -5
I think he want the kind like ours? He has one of those type motors already Yeah I have a 1E40QMB-A (1E40FM head) sitting on the bench. I have other plans for that one. Thought about using the case from that and just slapping my crank in to it and all the parts from the 1E40QMB onto it. Then I thought about how my compression would be affected in the bottom end using a smaller diameter crank. Decided against it. On a side note, I got my threebond in today. Two tubes. They are much larger than I thought they would be. I think I could have gotten away with one. Oh well, never hurts to have extras. Well, if it IS possible that I can use the case half then that's OK. I don't mind having an extra 40QMB to experiment with. I wish that motor would just get here so I can ride my scooter. Been riding the 150 for the past couple of days. It's not jetted right, and leaks oil. Kind of a pain in the ass to ride, even though it starts right up. Just bogs sometimes on initial throttle. I miss my small 70cc high revving yellow rocket that can turn (for the most part) very well, starts right up, doesn't leak, and is VERY reliable... That 150 feels a little unstable around the turns, and I'm always afraid it's going to over heat or something...
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Post by drawkward on Jul 5, 2010 17:23:42 GMT -5
I had just gotten off work yesterday, and the family was on vacation out of town, so I had nothing better to do but to work on the scoot. My arm was feeling ok, it wasn't TOO hot, and I had plenty of beer. The stand broke the day before from me touching it to the ground around a bend. Didn't notice until I went to go put it on the stand when I got home. The only thing that concerns me with the crank is that if I slide it all the way over to a certain side on the pin, then hold the end on that side, it will slightly rub the shaft. The arm has play sliding on the pin(2mm maybe), and side to side at the end (1mm maybe). The arm is healing really quickly since I've been forced to take care of it (grandma insists). Using non stop antibacterial creme, petroleum jelly, and fresh bandages really DOES work! I won't be riding without all the bolts in my cases from now on. The more I look at them, the weaker they look. The insides of the covers have supports, I'm assuming for a reason other than just holding the bearing and kick start gear. Here's a shot of the intersection. The red is my line, the squigly parts are where it was spinning and sliding down the road. The dotted red is me hauling the scooter to the side of the road. The green dots simulate what traffic was like at that hour (lunch rush hour). The median I hit is just a regular curb median. No wall. I got very lucky considering it didn't go over and strike a vehicle and injure someone. I know my line looks a little aggressive there, but I've taken that turn plenty of times before with that line, just never that hard. Cockiness plus residual sand from snow season = bad things. No matter what my line and speed, I still blame the sand.
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Post by 90GTVert on Jul 5, 2010 18:54:42 GMT -5
Great work on the accident diagram.
I'm kinda confused on what's moving where on the crank. Is there any up and down play on the big end of the connecting rod (where it connects to the crank)? Are you saying the small end moves 1mm side to side and the big end moves 2mm?
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Post by drawkward on Jul 5, 2010 19:19:12 GMT -5
Thanks. Took a little while, but I wanted to explain how it happened and how very lucky I was no one else was involved.
The big end is on a pin. The end can slide back and forth on the pin about 2mm. As for how loose the big end is on the pin, it is not loose at all. Very tight up and down. The small end has a slight 1mm wiggle. My real concern is the big end, and how the arm can contact the sides of the cam if I put it in just the right position.
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Post by Goosey on Jul 6, 2010 8:35:57 GMT -5
There's a lot of white lines on that road. Do they sprinkle that reflective glass sand on the freshly painted lines where you are? That stuffs like glare ice to a motorcycle/scooter. My instructor when I took the motorcycle course was a moto cop, told how his bike slid out from under him at a stop once on that stuff.
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Post by drawkward on Jul 6, 2010 9:54:08 GMT -5
Now that I look at it, there are a whole lot of white lines I had to cross. I slipped out just about where the red line meets the turning white car. Maybe it was that last white line that finally did me in while I was at the lowest part of my lean? Now THAT is slippery. Sliding out on sand while at a light not moving. I really think they should at least try to clean up all the sand after storms. Not that it's much of a problem for cager's, but it still could be. They don't care about bikes
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Post by Reign on Jul 6, 2010 10:15:33 GMT -5
I really think they should at least try to clean up all the sand after storms. Not that it's much of a problem for cager's, but it still could be. They don't care about bikes I know exactly how you feel there. They don't use sand here when it snows, only salt. But the roads fall apart so much here that corners like that are always full of broken up pebbles from the asphalt. I'm always extremely hesitant to lean very far in corners, specifically because of that. Sometimes I don't lean enough, and end up nearly going into oncoming traffic I always seem to correct myself before I do though. I'm tempted to ride around one day with a broom and just sweep up every corner I ride through regularly.
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Post by drawkward on Jul 6, 2010 15:22:10 GMT -5
I'm tempted to ride around one day with a broom and just sweep up every corner I ride through regularly. Haha. I was thinking the same thing about my favorite routes yesterday. Would ease the mind a bit when tempted to lean that much more. Wouldn't take but a few hours at the most, and it should stay pretty clean till next year.
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Post by Reign on Jul 6, 2010 15:35:48 GMT -5
I'm tempted to ride around one day with a broom and just sweep up every corner I ride through regularly. Haha. I was thinking the same thing about my favorite routes yesterday. Would ease the mind a bit when tempted to lean that much more. Wouldn't take but a few hours at the most, and it should stay pretty clean till next year. Gives me a project idea ;D Build a rack to hook onto your scooter with brooms attached at an angle like a street sweeper mixed with a snow plow.. Just ride down the street, and it sweeps everything to the side of the road for you.
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Post by 90GTVert on Jul 6, 2010 15:52:44 GMT -5
Wonder if you can rent street sweepers? lol
The crank sounds OK to me. I think my decent crank would rub on one side if you position it just right. Don't think it could do that in the engine because there are no marks that indicate contact.
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Post by stepthrutuner on Jul 6, 2010 16:12:12 GMT -5
Just chalk it up to edumacation. I guarantee you will remember the pain and be reminded by the remnants of the road rash. I know I think of my 'offs' every time I take a curve aggresively.
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Post by 90GTVert on Jul 6, 2010 17:25:24 GMT -5
I was just telling a friend I don't like riding my road as much when it's busy ever since that hay bail. It feels like a lottery. How many cars will pass me before one tries to kill me? Crashing does have some affect on most people's mindset.
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Post by duosport on Jul 6, 2010 21:38:31 GMT -5
I am wondering if you went down because your crankcase broke. If you think about it the maximum stress would be on that weak point, when you are at full lean. You are pressing down on it and ground is pressing up at it and it is torquing the crankcase. I think the cover adds a lot of stuctural integrity. Look how thin the crankcase is without the cover on it. In cross section the cover completes one side of the oval.
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Post by 190mech on Jul 7, 2010 9:12:25 GMT -5
Thats a good point Duosport,notice the fracture is at the middle attach screw,the only one installed...
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Post by 2strokd on Jul 7, 2010 9:17:43 GMT -5
I kinda thought that from the begin too... I was kinda thinking that ha slid on the slick, then when the scooter "bit" on the grippy stuff, SNAP goes the crank case???
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