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Post by jimmyz1364 on Mar 2, 2019 1:22:35 GMT -5
I just picked up a couple of c52's...one has spark but the starter won't engage the flywheel....the other has no spark and I don't know why as it looks brand new...so I want to remove the coil, but how do I thread the spark plug boot through the motor fins? Thanks
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Post by sweepleader on Mar 2, 2019 8:45:58 GMT -5
You can take the boot off by pushing the wire with the terminal through the boot, take of the terminal, then pull the boot off. Use some lube on the rubber.
Or, you can remove the wire from the coil by unscrewing it. The wire screws onto a threaded/pointed stud in the coil, you will have to spin the coil if the wire is in the fins.
I would suggest that you replace the rubber parts if there is any doubt about them after you have taken them apart. Use only solid wire core plug wire, not resistor/modern car wire.
You can of course just cut the wire and replace it and the boot.
Good project keep us informed.
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Post by edju1958 on Mar 2, 2019 9:16:27 GMT -5
Your problem could be as simple as a bad switch or a bad spark plug.There are many factors that can cause no fire.A bad switch,a bad plug,dirty or corroded points,bad condenser,a broken or grounded points wire.All of these need to be taken into consideration. Ed
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Post by sweepleader on Mar 2, 2019 10:08:49 GMT -5
You got me there Ed, thanks for the save. Ed is completely right, there are a bunch of things that could be the problem besides the coil just like he said.
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Post by edju1958 on Mar 2, 2019 10:27:31 GMT -5
Any time Dan.I just don't like to see any unnecessary work,or going through steps that one doesn't have to.It's all a process of elimination.First things to do are the easiest & most obvious - the plug,then the switch.Then you check your wires.Next on the list would be to check your coil.(notice how I saved the most involved for last) Finally,pull the flywheel if necessary & taker the points cover off & clean & gap the points to .015 & if you have a capicitance tester you can check your condenser & replace it if necessary.The absolute last thing to think about if all else fails is to put a chip in the saw. Ed
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Post by P.E.B.K.A.C. on Mar 2, 2019 18:49:37 GMT -5
Any time Dan.I just don't like to see any unnecessary work,or going through steps that one doesn't have to.It's all a process of elimination.First things to do are the easiest & most obvious - the plug,then the switch.Then you check your wires.Next on the list would be to check your coil.(notice how I saved the most involved for last) Finally,pull the flywheel if necessary & taker the points cover off & clean & gap the points to .015 & if you have a capicitance tester you can check your condenser & replace it if necessary.The absolute last thing to think about if all else fails is to put a chip in the saw. Ed
How does one test the switch with a multi-meter and what should the resistance be of the primary and secondary winding on a C-52 coil. |
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Post by sweepleader on Mar 2, 2019 19:09:04 GMT -5
I don't know what the resistances are on the coil, if they conduct that is one sign. They should both go to ground. Beyond that, I would try the battery test. 1.5 volts from the switch wire to ground. When you disconnect that you should get a spark. The points need to be open.
The switch should show zero ohms in the "off" position (grounding the coil to kill the engine) and it should show infinite ohms or open circuit in the "on" position.
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Post by rowdy235 on Mar 3, 2019 0:18:38 GMT -5
The easiest way to rule out the switch is to just unplug it and see if you have spark! If you do, you know the switch is bad.
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Post by edju1958 on Mar 3, 2019 0:24:37 GMT -5
That's exactly how I do it too Rowdy. Ed
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