What type of repair for this cylinder?
- Tyl3r
- Platinum Member
- Posts: 1336
- Joined: 06:51 pm Nov 26 2012
- Country: USA
- Location: SW Pennsylvania
What type of repair for this cylinder?
Well, I took my 220 top end apart to put a new piston in it. It looks like I'm going to be needing some cylinder repair done. I was hoping that one of you more experienced individuals could lend me some insight as to what kind of repairs I will be looking at?
These scores are only seen in the area shown. Can this be cleaned up with a 1mm overbore? Or am I looking at a weld/machine repair? This is my first top end rebuild that I've done, so I'm not sure if just a replate/hone would be enough to fix it? I wouldn't think so.
Thoughts? Any input would be helpful! I plan to take the cylinder to PowerSeal, they are somewhat in my neck of the woods.
These scores are only seen in the area shown. Can this be cleaned up with a 1mm overbore? Or am I looking at a weld/machine repair? This is my first top end rebuild that I've done, so I'm not sure if just a replate/hone would be enough to fix it? I wouldn't think so.
Thoughts? Any input would be helpful! I plan to take the cylinder to PowerSeal, they are somewhat in my neck of the woods.
05 KX220 Hybrid all decked out
-
- Member
- Posts: 284
- Joined: 04:17 am Nov 29 2009
- Country:
- Location: Colorado Springs, CO, USA
Re: What type of repair for this cylinder?
Replate at Millennium Technologies.
EDIT: That's a plated, not sleeved, cylinder, correct?
BTW, if you don't mind my asking, what premix oil and ratio where you using?
EDIT: That's a plated, not sleeved, cylinder, correct?
BTW, if you don't mind my asking, what premix oil and ratio where you using?
- Tyl3r
- Platinum Member
- Posts: 1336
- Joined: 06:51 pm Nov 26 2012
- Country: USA
- Location: SW Pennsylvania
Re: What type of repair for this cylinder?
Why not PowerSeal? I haven't heard anything bad about either of the two places; Powerseal was just closer to me.
Yes, that is a plated, non-sleeved cylinder.
I bought the bike several months ago and only had about 7 or 8 rides on it. For those rides, I ran 92 octane with Belray Super M mixed at 40:1.
Any idea how extensive the repair is going to be?
Yes, that is a plated, non-sleeved cylinder.
I bought the bike several months ago and only had about 7 or 8 rides on it. For those rides, I ran 92 octane with Belray Super M mixed at 40:1.
Any idea how extensive the repair is going to be?
05 KX220 Hybrid all decked out
-
- Member
- Posts: 284
- Joined: 04:17 am Nov 29 2009
- Country:
- Location: Colorado Springs, CO, USA
Re: What type of repair for this cylinder?
I've heard lots of great things about Millennium. I've used the twice myself with excellent results. Don't know much about PowerSeal.Tyl3r wrote:Why not PowerSeal?
Any idea how extensive the repair is going to be?
What do you mean by "extensive"? You remove the power valve parts, clean the cylinder and send it to them. You pay them and they return the cylinder to you. Reassemble the cleaned parts and enjoy.
-
- Member
- Posts: 5
- Joined: 01:20 pm Apr 22 2016
- Country:
What type of repair for this cylinder?
Mine was just as bad. $185 for powerseal to replate. 3-4 week turnaround right now. Mine should be back to me any day now.
Buy a piston and send it with your cylinder. You can get one through them, but it's about $20 more expensive than can be found elsewhere.
Buy a piston and send it with your cylinder. You can get one through them, but it's about $20 more expensive than can be found elsewhere.
- Sullyfam
- Gold Member
- Posts: 459
- Joined: 12:19 am Dec 10 2013
- Country:
- Location: Fort Worth, tx
Re: What type of repair for this cylinder?
I just had my replated by Millennium and it's came back looking awesome. Better than new. Two week turnaround.
Sent from my iPhone using Tapatalk
Sent from my iPhone using Tapatalk
- Tedh98
- Supporting Member II
- Posts: 1576
- Joined: 01:08 pm Mar 20 2009
- Country:
- Location: Atlanta, Georgia
- Contact:
Re: What type of repair for this cylinder?
I use Powerseal as well. Quick turnaround and good work.
Definitely send your piston with the cylinder.
Definitely send your piston with the cylinder.
- Tyl3r
- Platinum Member
- Posts: 1336
- Joined: 06:51 pm Nov 26 2012
- Country: USA
- Location: SW Pennsylvania
What type of repair for this cylinder?
Did they have to do any machine work to the cylinder to fix your gouges? Or did they just replate and hone?Jethrobolas wrote:Mine was just as bad. $185 for powerseal to replate. 3-4 week turnaround right now. Mine should be back to me any day now.
Jim - I was asking about how extensive the repair work would be in regards to welding, plating, and machining operations... I understand the logistics lol
Thank you all for your input, I'm more than likely going to take the Powerseal route. I spoke with them today and they said 2-1/2 to 3 week turnaround. I plan to pack up the cylinder and piston and send it to them on Monday Wish I wouldn't have waited so darn long to get it apart
05 KX220 Hybrid all decked out
-
- Member
- Posts: 284
- Joined: 04:17 am Nov 29 2009
- Country:
- Location: Colorado Springs, CO, USA
What type of repair for this cylinder?
My old KX250 cylinder was quite a bit worse than the one off your KDX. I think what Millennium did was chemically strip off the old plating, bore the cylinder slightly and replate with a "thick" plating. There was, IIRC, an extra $10 charge for the thick plating, on top of what they'd normally charge for a replate. (I'm not 100% sure how they remove the old plating, I'm just taking a semi-educated guess.)Tyl3r wrote:Jim - I was asking about how extensive the repair work would be in regards to welding, plating, and machining operations... I understand the logistics lol
I wouldn't worry about it at all, your cylinder really isn't too bad. If they couldn't fix yours, then they couldn't fix any of them.
-
- Member
- Posts: 5
- Joined: 01:20 pm Apr 22 2016
- Country:
Re: What type of repair for this cylinder?
From your photo, looks like it just needs a strip and replate. Same as mine.
Here is the home page. Plenty of info on their site including pricing.
http://www.powersealusa.com/
Here is the home page. Plenty of info on their site including pricing.
http://www.powersealusa.com/
- KDXGarage
- KDXRider.net
- Posts: 14060
- Joined: 06:45 am Nov 01 2004
- Country: United States of America
- Location: AL, USA
- Contact:
Re: What type of repair for this cylinder?
I think welding, finshing and boring is around 50 bucks, but yours does not look too bad from the pics. Is it a gouge or a circlip?
Thank you for participating on kdxrider.net.
To post pictures from a device: viewtopic.php?f=88&t=24128
To post pictures from a device: viewtopic.php?f=88&t=24128
- Bonno
- Supporting Member I
- Posts: 77
- Joined: 09:31 pm Apr 03 2016
- Country:
Re: What type of repair for this cylinder?
I just sent my 1987 kdx cylinder off today to Millennium as per suggested by people here. There website is awesome. I sent a wiseco piston and the power valve parts and head. I hope i get it back fast! Im still waiting on getting my mono shock back from rebuild from my local bike shop. Been few weeks, they said 2-3 weeks tho. Im going to be in deep with my KDX!
rides gone... Yamaha 1991 PW50, 1977 IT400, 1984 700 Virago, 2010 Harley heritage, 1987 KDX200
Current bikes... Suzuki 1978 GS750 x2, 1993 KDX200
Current bikes... Suzuki 1978 GS750 x2, 1993 KDX200
- Tioli
- Supporting Member I
- Posts: 267
- Joined: 06:57 am Jul 19 2014
- Country: Tasmania AUS
What type of repair for this cylinder?
I am not suggesting this but just saying like if the gouges were smooth enough you could just keep running it with a new piston. The rings don't go down that far. You can see the bottom of the ring line about 1cm lower than the exhaust ports base.
What would have me wondering is what made those gouges. Gouges are mostly from the ports and up. Or on the sides for when a circlip lets go. Some thing must have come from the bottom stuck on the bottom of the skirt and refused to let go like a broken ring. What ever it was there may have been a few of them and they were harder than aluminium.
Check the bottom of your crank for bits of something and bearings and rod free play. I don't know if this would work on this motor but lay a strip of clean white cotton rag across the crank and feed it round till it comes out the other side. Then check for bits of some thing and does it stick to magnets.
What would have me wondering is what made those gouges. Gouges are mostly from the ports and up. Or on the sides for when a circlip lets go. Some thing must have come from the bottom stuck on the bottom of the skirt and refused to let go like a broken ring. What ever it was there may have been a few of them and they were harder than aluminium.
Check the bottom of your crank for bits of something and bearings and rod free play. I don't know if this would work on this motor but lay a strip of clean white cotton rag across the crank and feed it round till it comes out the other side. Then check for bits of some thing and does it stick to magnets.
2001 KX125 with a 1997 KDX Tioli Hp motor
My KDX journey starts at the bottom of this page:
http://www.trials.com.au/forum/viewtopi ... &start=160
Trials.com.au / Forum / All about...me! / My long time friend the prancing horse / page 9
My KDX journey starts at the bottom of this page:
http://www.trials.com.au/forum/viewtopi ... &start=160
Trials.com.au / Forum / All about...me! / My long time friend the prancing horse / page 9
-
- Supporting Member II
- Posts: 925
- Joined: 10:00 am Jan 04 2014
- Country:
What type of repair for this cylinder?
dirt will do it.Tioli wrote:I am not suggesting this but just saying like if the gouges were smooth enough you could just keep running it with a new piston. The rings don't go down that far. You can see the bottom of the ring line about 1cm lower than the exhaust ports base.
What would have me wondering is what made those gouges. Gouges are mostly from the ports and up. Or on the sides for when a circlip lets go. Some thing must have come from the bottom stuck on the bottom of the skirt and refused to let go like a broken ring. What ever it was there may have been a few of them and they were harder than aluminium.
Check the bottom of your crank for bits of something and bearings and rod free play. I don't know if this would work on this motor but lay a strip of clean white cotton rag across the crank and feed it round till it comes out the other side. Then check for bits of some thing and does it stick to magnets.
- Tioli
- Supporting Member I
- Posts: 267
- Joined: 06:57 am Jul 19 2014
- Country: Tasmania AUS
What type of repair for this cylinder?
Yes if you forgot to put the air filter on. Still marks from the port down is unusual as the bottom of the skirt does not go up that high to expose the exhaust port and the rings don't go down that far. So how does it begin the marks?
2001 KX125 with a 1997 KDX Tioli Hp motor
My KDX journey starts at the bottom of this page:
http://www.trials.com.au/forum/viewtopi ... &start=160
Trials.com.au / Forum / All about...me! / My long time friend the prancing horse / page 9
My KDX journey starts at the bottom of this page:
http://www.trials.com.au/forum/viewtopi ... &start=160
Trials.com.au / Forum / All about...me! / My long time friend the prancing horse / page 9
- Tyl3r
- Platinum Member
- Posts: 1336
- Joined: 06:51 pm Nov 26 2012
- Country: USA
- Location: SW Pennsylvania
Re: What type of repair for this cylinder?
I was thinking the same, probably dirt or sand or something snuck in there. I was looking at a lot of photos of damaged cylinders, lots of them had damage in the same area as mine. I'm not too concerned about it, I only had the bike for a couple of months, who knows what happened to the bike with its previous owners.
After I packed up the cylinder, I saw that the old piston had similar looking marks on it. I wish I would have noticed before I packed up the cylinder so I could have done more investigating. O wells
After I packed up the cylinder, I saw that the old piston had similar looking marks on it. I wish I would have noticed before I packed up the cylinder so I could have done more investigating. O wells
05 KX220 Hybrid all decked out