2 Cycle Sleeve Machining

FOMOGO said:
That appears to be a pretty thick liner. Sure you can't just bore it? How about a pic of the bore. Mike
Click to expand...
I’m embarrassed, I used a dremal to break apart piston.

Wall thickness is 3/16” ~4.5mm?

Had it soaking with atf and kerosene for a few months no budging. Also adding heat a couple time a week.
 

Attachments

  • image.jpg
    image.jpg
    166.1 KB · Views: 18
FOMOGO said:
That appears to be a pretty thick liner. Sure you can't just bore it? How about a pic of the bore. Mike
Click to expand...
That was going to be my question....

I'd give these guys a call, might be that you don't need a new liner. in either case you'll need a piston.

Wiseco - Custom Piston Order

auto.wiseco.com auto.wiseco.com

John
 
Scra99tch said:
I’m embarrassed, I used a dremal to break apart piston.

Wall thickness is 3/16” ~4.5mm?
Click to expand...
That'll buff right out....

Seriously though, take it to someone who knows what they're doing and see what they think.

I still think this is a prime candidate for electrification. Two stroke is fun but finicky, love the smell of castor oil but it can get old after a while.

John
 
Okay will do, thanks for your replies.
 
You could either fill that with brazing metal and then do a small overbore or just bore it all out, have it honed and then order or build a piston for it. You could also offset the bore in the direction of the damage to take out the minimum amount on the diameter. I doubt a few thousandths off center will matter much to it's performance. I assume there's enough of the piston left to take measurements from? Good luck.
 
Cadillac said:
Have the liner nickesil plated I use to do it to all my two strokes. Idk how thick they can go though.
Click to expand...
This^^^

Had forgotten about that option. used it frequently on shifter kart cylinders that had gotten messed up but you didn't want to loose the porting work.

Here's one....

PowerSeal USA | NikaSeal Cylinder Repair and Plating

PowerSealUSA - Your Performance NikaSeal Plating Headquarters
www.powersealusa.com www.powersealusa.com

John
 
Also keep in mind there is ring locating pin in the ring groove that keeps the ring/rings from rotating. If you order a custom piston the pins will need to be clocked to the same location. Ring end gap can't overlap with a port or bad things happen :oops:
 
You must log in or register to reply here.
Back
Top