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Old 02-21-2005, 11:21 PM
Thistledown Thistledown is offline
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Join Date: Feb 2005
Location: Clinton, Maine
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IDC trimmer

I have an IDC trimmer that is probably 15 years old or so. No spark, and I'd like to diassemble it. I have the boom removed but can't seem to figure out how to remove the centrifugal clutch to get the flywheel housing off.

Is there a trick to this, or is the timmer just a throwaway item anyway?

thanks,

Jim in Maine
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Old 02-21-2005, 11:39 PM
CCWKen CCWKen is offline
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Remove the nut. Attach a pulley/gear puller but DO NOT tighten it up. Just snug the bolt about 1/4 turn over finger tight. Tap the head of the puller bolt. If the bolt loosens up, snug and tap again. The shaft is probably tapered so when the bolt loosens, the key is the only thing holding it on.

If you try to remove the clutch with the puller in the normal way, it will bend the clutch housing.
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Old 02-21-2005, 11:58 PM
Thistledown Thistledown is offline
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CCWKen,

Thanks for the look. I'm not seeing a nut to loosen or remove. There is a hollow shaft integral with the cent. clutch. It has a square hole in it to drive the flex shaft in the boom.

Maybe I need to get a model number or take a pix.

Jim in Maine
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Old 02-22-2005, 06:30 AM
mikemerritt mikemerritt is offline
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At the bottom of the square hole there is probably a T-15 or 20 torx screw. That is what holds this clutch housing on. The clutch shoes ares threaded and should spin off once the housing is off.

Mike
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  #5  
Old 02-22-2005, 11:13 AM
Thistledown Thistledown is offline
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Thanks Mike

Jim
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Old 02-22-2005, 11:11 PM
Thistledown Thistledown is offline
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Location: Clinton, Maine
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Got it all apart this evening. With solid state ignition, I didn't expect to be able to get spart back, but took the coil off and noticed the core was rusty where it touches the engine. Cleaned it up, reinstalled with proper air gap and have spark again!

Haven't fueled it up to try it yet.

Jim in Maine
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Old 02-23-2005, 12:04 AM
CCWKen CCWKen is offline
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Oh Yea, the "square hole model". Glad you got it apart. My brain must have been in chain saw mode.
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  #8  
Old 02-27-2005, 05:41 PM
Thistledown Thistledown is offline
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Location: Clinton, Maine
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IDC string trimmer

I have been tinkering with this trimmer off and on since last posting. It has spark, but it's a pitifully skinny one. I chucked the end of the crankshaft to an electric motor to see what kind of spark it has at speed. It's still skinny and has orange tints to it.

I'm guessing the coil is weak. I'm also guessing that makes the old critter probably not worth putting any money in. The cylinder and piston look OK through the exhaust port and compression is OK, but I got this for free some time ago, and it looks like I probably paid too much at that! The coil-ignition module has the number 9010 on it. I'm guessing used coils are a little scarce???

Jim in Maine
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