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B112
USA
5230 Posts |
 Posted - 06/04/2010 : 23:02:04
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So tonight I dissembled my Craftsmen two-cycle trimer. My own fault I'd guess as I've learned to not be wild with these. The problem I've discovered was the piston got jambed in the cyclinder. So I disassembled the machine (pictures of the mess tomorrow) and dislodged the piston with some tapping and persasion. I then was able to turn the machine and reassemble it. I only had one piece left over! A small piece of rubber that I have no idea where it went, hope it's not the cause of my assembly dilema. So it's all assembled now. But it don't want to start!
Oh, I did discover why the kill switch stopped working and I had to flood the engine to turn the machine off. The wire broke and the shut off is a ground design, so the machine kept working even if the kill switch died. Anyway, it's too late to get really busy on it and see if I can get it started. But I thought I'd share with you what two hours got me... Nothing.
Though I will say this was the easiest disassembly and reassembly I've seen. Everything fits together well. So hopefully it starts tomorrow. Otherwise I smash it on the ground and hear Biggie laughing how he doesn't like two-cycles!
Till tomorrow! |
Michael |
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skunkhome
USA
12827 Posts |
Posted - 06/05/2010 : 00:51:34
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need pictures of the rubber piece.
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  Phil
"They that can give up essential liberty to obtain a little temporary safety deserve neither safety nor liberty."
Benjamin Franklin |
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B112
USA
5230 Posts |
Posted - 06/05/2010 : 07:18:49
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So this is the trimmer apart/the work area:
All comes apart easy! Just a few T-Hex wrenches.
Here's the mysterious rubber piece. In shot two above also.
Still not running, running over to the tractor garage to see if some of the starter fluids and/or spark tester can help.
BTW: When I say wild with these, I was being lazy and figured I could use it to shear a bush that was bothering me. Well I hit a hard branch and the engine stopped dead. After that I couldn't pull the pull cord, so I knew I was bad. Anyways, that's wild in my book... a little YDS, but really not that "Y" and stupidity. |
Michael |
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oldron
USA
2732 Posts |
Posted - 06/05/2010 : 09:16:08
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Just a rubber mount,my Homelite has 2 or 3 for the gas tank.I think they are for vibration lol.
Ron |
 'Life isn't about how to survive the storm, but how to dance in the rain!' |
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Richard L.
USA
483 Posts |
Posted - 06/05/2010 : 09:28:12
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| I can't really see the rubber piece that well but with my 2 cycle experience it sounds like it would be for a fuel hose going into the tank or a vent line out. Also, with an abrupt stop where it hit something it's likely you've broken a keyway. I know about Biggies dislike for 2 strokes and I can understand the experience after tons of unsuccessful attempts at yanking the the starter rope and turning these into boomerangs but one thing I've found that does loads of initial problem solving is to make up a soda bottle with a hole in the cap and put some fuel mix in it and pull the spark plug to give it just a small shot of fuel before yanking for a half hour to get the fuel through the lines. Don't put too much in as it will likely be too much for the cylinder and it will bind but just enough to yank it over a couple times with the choke on. Usually within a couple of pulls it will start and run long enough to get the fuel up to the carb IF it has spark. Usually with a couple starts and stops with this method it'll pick up and run. If not it's spark or a bad diaphragm in the carb. Pull the carb apart and just clean out all the passages with carb cleaner and make sure the passages are completely clear. I've used various size torch tip cleaners for the really hard ones that works amazingly well.. |
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olcowhand
USA
5115 Posts |
Posted - 06/05/2010 : 10:22:47
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| Being it won't start, likely Richard is correct that the flywheel key is sheared. Timing will be off, but there will be spark. |
Daniel in Ky -- So much to do, so little time!
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biggie_rat
USA
1235 Posts |
Posted - 06/05/2010 : 10:36:45
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It looks to me like one of those things that sits on the workbench, and six months down the road you spot it, then wonder 'what is that?', then pitch it in the trash can. Of course, by then you have already pitched the 2 cycle from he** and sworn off anything 2 cycle and bought a goat for the weeds, or of course, bought a new weed eater, while looking in to buying an electric chain saw to match your electric weed eater.
B.R. |
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olcowhand
USA
5115 Posts |
Posted - 06/05/2010 : 11:33:34
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| I got myself a 4 cycle weed eater. No more mixing gas/oil! Powerful,...a bit heavier....but worth it. |
Daniel in Ky -- So much to do, so little time!
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biggie_rat
USA
1235 Posts |
Posted - 06/05/2010 : 12:22:56
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quote:
Originally posted by olcowhand
I got myself a 4 cycle weed eater. No more mixing gas/oil! Powerful,...a bit heavier....but worth it.
I never thought of that ......... maybe a 327 Chevy powered weedeater. May be my next project. At least it would have an electric starter on it.
B.R. |
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Richard L.
USA
483 Posts |
Posted - 06/05/2010 : 13:22:16
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| Funny story about these weed eaters. Friends of mine own a driveway sealcoating business out in Chicago with 30 trucks on the road with 3 guys per truck. Each crew gets a weedeater and a large walk behind blower along with just tons of equipment that is taken off the trucks every night for safekeeping. Well, with all the sealcating dripping all over the weedeaters were unrecognizeable to the majority of the crewman. Their small engine mechanic who is a whiz with these things recognized this and decided to mig weld truck numbers on the shafts of each weedeater. Looked good, until the next day when the guys were out working them and the aluminum shafts broke from the heat applied from welding. I told you he was a whiz at small engines, not a welder. |
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B112
USA
5230 Posts |
Posted - 06/05/2010 : 14:56:07
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 re: the wiz kid, that's funny. I do have a spark, didn't try the gas yet, still will not start. I spent today doing painting. |
Michael |
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skunkhome
USA
12827 Posts |
Posted - 06/05/2010 : 16:19:11
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quote:
Originally posted by oldron
Just a rubber mount,my Homelite has 2 or 3 for the gas tank.I think they are for vibration lol.
Ron
I think Ryobi also made/makes the Crapsmans and they also have a rubber bumper on the gas tank. I would bet the with the sudden stop that you have sheared a key or something throwing off the timing. you also have primary and secondary compression and if the reed valves are damaged or corroded the thing will not run. |
Phil
"They that can give up essential liberty to obtain a little temporary safety deserve neither safety nor liberty."
Benjamin Franklin |
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olcowhand
USA
5115 Posts |
Posted - 06/05/2010 : 19:19:25
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quote:
Originally posted by B112
re: the wiz kid, that's funny. I do have a spark, didn't try the gas yet, still will not start. I spent today doing painting.
It'll still have spark with a sheared key...just at the wrong time, and can or can't even try to hit a lick, depending on flywheel location on shaft.
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Daniel in Ky -- So much to do, so little time!
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skunkhome
USA
12827 Posts |
Posted - 06/05/2010 : 20:34:20
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quote:
Originally posted by olcowhand
quote:
Originally posted by B112
re: the wiz kid, that's funny. I do have a spark, didn't try the gas yet, still will not start. I spent today doing painting.
It'll still have spark with a sheared key...just at the wrong time, and can or can't even try to hit a lick, depending on flywheel location on shaft.
exactly! quote:
Originally posted by skunkhome
I would bet the with the sudden stop that you have sheared a key or something throwing off the timing.
I pretty much consider those little two cycle "throw away" engines. certainly not worth spending hours trying to sort out...unless it just turns you on. I have been messing with my little Ryobi and am just about at that point except I know a new one would soon have the same problem with ethanol destroying the fuel lines...regardless 2 or 4 cycle. Have seen the packs of springs b4 I need for the fuel lines but have not seen any in stores since I have been looking.
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Phil
"They that can give up essential liberty to obtain a little temporary safety deserve neither safety nor liberty."
Benjamin Franklin |
Edited by - skunkhome on 06/05/2010 20:58:06 |
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olcowhand
USA
5115 Posts |
Posted - 06/05/2010 : 22:17:43
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Yep, had to replace the fuel lines last week in my 4 stroke. Why can't they make lines resistant to the alcohol!! |
Daniel in Ky -- So much to do, so little time!
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olcowhand
USA
5115 Posts |
Posted - 06/05/2010 : 22:18:38
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quote:
Originally posted by olcowhand
Yep, had to replace the fuel lines last week in my 4 stroke. Why can't they make lines resistant to the ethanol!!
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Daniel in Ky -- So much to do, so little time!
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I'm singing the Craftsman 2-Cycle Blues
