47mm steel sleeve cylinder ring help

[Spare_Parts]

Lynn at mbrebel has a piston set with moly rings listed but it's out of stock.
https://mbrebel.com/product/type-piston-kit-gt5-skyhawk-flying-horse/

 

[HumanPerson]

Lynn at mbrebel has a piston set with moly rings listed but it's out of stock.
https://mbrebel.com/product/type-piston-kit-gt5-skyhawk-flying-horse/

Looks spot on!
but do they bend or snap?

 

[HumanPerson]

https://www.ebay.com/itm/Wiseco-Pis...174550&hash=item1a5d0f05a5:g:AM0AAOSwzTFb4win
just the gap lip don't look right

 

[HumanPerson]

https://www.ebay.com/sch/m.html?_od...R40&_trksid=m570.l1313&_nkw=47+++2mm&_sacat=0

another one to check out i guess lol
my head si spinning

 

[FurryOnTheInside]

Ebay item number 172051853596 is 47x2 but I believe it is cast iron. The only advantage is a possibly less gaping ring end gap. I think it's expensive for a bit less blow by, but if you are concerned about the sleeve being a bit loose on the rings this could be helpful.
I would not be that bothered since the stock rings are so cheap on comparison.. These Italian made rings come from Greece so postage cost will be bad for you USA guys. Worth it for racing I expect..

 

[Spare_Parts]

Found rings for a stihl ms310 but can't find any other info about them other then size. Think the cylinder is naskil plated though so they are probably of no use to us.
https://www.ebay.com/p/Piston-Ring-47-X-2-Mm-Chainsaw-Trimmer-Brushcutter/1167671671

Having a hard time getting any answers from vendors and manufacturers.

 

[HumanPerson]

Well i got my cyclinder the other day and bolted it all together with no port matching and really i did
nothing lol just put it on and rode to work this morning.
I noticed that in doing it this way i lost alot of bottom end low speed hill climbing power and top end speed.

LOL

I'm going to order another one then clean up the ports and match everything i can, i guess.

@Spare_Parts where should i even start with this cylinder

Thanks,

HP

 

[Spare_Parts]

@Street Ryderz would be more help.

I would remove all the bridging, widen and possibly raise the exhaust and then clean up where the sleeve over hangs the intake port.

You should port map your old cylinder then we could see the difference. I just put the jug top down and rub over the ports with lead from a pencil. Then measure everything.

 

[HumanPerson]

Roger that.
I probably should have done that before installing

Ride it like ya stole it

Anyway, i have another cyl from bgf on the way tomorrow hopefully, so i'll start the proccess.

Thanks & Ride Safe!




HP

 

[Spare_Parts]

So we are back to the pw80 rings. Caber is owned by Meteor Pistons. On Meteor's site it has a reference chart for Caber's rings. G15k is "PISTON RING WITH OUTSIDE SURFACE CHROME COATED JOINT WITH SIDE NOTCH"
http://www.meteorpiston.com/Pages/Piston Rings.aspx
http://www.caberpistonrings.com/eng/cataloghi.php?sez=moto

For someone reason I can't attach an image but these are not keystone rings.
Edit... So the picture showed up lol.