What's your take on this

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royadams
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What's your take on this

Post by royadams »

Just took the bike down today and look what I found. What Do YOU Guys think. It was replated a little over a year ago. Image
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Julien D
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Re: What's your take on this

Post by Julien D »

Well, that's not very pretty. Looks like it was a hair too tight. It would be interesting to see what the cylinder looks like all cleaned up. I think it will be usable.
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royadams
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Re: What's your take on this

Post by royadams »

There is no scratches in the piston or the cylinder. I'm just concerned obout all the blow by. Seems excessive for a cylinder without much time on it. I was wondering if the piston or cylinder is out of round.
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Julien D
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Re: What's your take on this

Post by Julien D »

The piston looks like it was verging on a multipoint type of siezeure. Like it was just barely making contact. I guess without a bore gauge checking for out of round is going to be impossible. How was the compression?
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Re: What's your take on this

Post by Jaguar »

use fine sandpaper to rough up the cylinder and if the ring end gap is still within specs then slap it all back together.
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royadams
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Re: What's your take on this

Post by royadams »

This can't be a good sign. You can see this in several spots.Image[/URL][/img]
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Julien D
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Re: What's your take on this

Post by Julien D »

Hmmm. That is not encouraging. Who did the re-plate?
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royadams
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Re: What's your take on this

Post by royadams »

Lancourt. I hope it's just the ring. I'm bringing it to the bike shop tonight to get measure. I hope it can be fixed. My hope is it can be diamond honed to the proper spec.I cleaned up the cylinder and it mildly seized in 6 places. That's one bad thing about the kdx you just can't kill it I've been riding it for a year not knowing it looked like that. I sent an email to lancourt there said they would let a tech look at photos. I sure hope it can be fixed without having to wait another month for a replate.
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Tedh98
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Re: What's your take on this

Post by Tedh98 »

royadams wrote:I hope it's just the ring.
If you rotate the ring, does the gap follow the ring or does the gap stay in the same spot?
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Re: What's your take on this

Post by royadams »

It's hard to say there is several spots and I did not have anything to mark it with. I took it to the bike shop and with a telescopic gauge it seems to be fine. He is going to drop it by the machine shop just to make sure.and check piston clearance. Maybe I just cold seized it. I do let it warm up before I ride, but who knows.
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