Video is old , hopefully my thank you finds you man . I a rebuilding a rebuild , non engine failure , crank splines and threads got destroyed , since all has to come undone I decide to check my clock work and it was most deff wrong thank you again !
The part of the oil control ring in the middle that you didn't know what to call it--it's called the "Oil Control Ring Expander." Thanks. I had to look at your video to show someone else what I was talking about.
Why not put the oil W ring down the to exhaust.. The other two oil rings on the top near the inlet, then the compression ring and top ring to the exhaust side.. Isnt the 20 degree angle for the smaller oil rings not to close with the oil W ring?
Yeah you could do it that way too..as long as none of the gaps are lining up your good to go...this engine has been running perfect for many years now. Thanks for watching!!
Hello, i installed new piston and rings on the gy6 (150cc) and when I started it, allot of blue 'oil' smoke bellowed out . . . Is this normal on first start up??
Enjoying The Sun 577-Jersey Customs Thanks for the reply, no I didn't use much oil in assy, it seemed like it was clearing up right before it ran out of juice, I will run it again this evening when get home . . . I was just wondering if the rings usually need to bed in, in these engines? Or go through some thermal expansion process?
Enjoying The Sun 577-Jersey Customs Some people can't live without hitting Thumbs down.. Thats their hobby I guess... :P Hope you'll understand :) Keep it up :)
When I clock my rings dead like that close together on my gy6139b with 50mm gofit big bore kit I lost compression and when I tore it apart the rings had somehow lined themselves up pretty much I'm currently depending on whether or not to replace them or just clocking 180 apart you're like a 90 with 180 maybe
Harold Vanzyl he cannot because there is no reason they cannot be over the wrist pin, just like he cannot explain why his compression ring gaps aren’t directly across from each other like they should be.
This is the meat and potatoes of engine building for sure along with ring end gap yup..anybody can build an engine but to build it correct is a different story. Thanks for watching brother!
Im not an engineer here but this is the way I have been doing it for over 30 years and never had a problem...BTW-this engine has been run everyday during the hot Summer for years now at and up to 8K RPM...no smoke,no compression loss. Thanks for the view brother!!
Also,any rings that are unpinned will rotate around the piston when engine is running anyway,none of these engines have pins,just like most 2 cycle engines are not pinned,but its a good idea to have the end gaps apart from each other for initial start-up...in other words non pinned rings all move around :)
Good stuff sir, got me thinking tho that new rings in a properly honed cylinder will likely rotate anyway, is it correct? So basically we should only care not to align gaps one close to another or maybe the specific clocking really makes that difference. (just thinking, im going to clock with your method anyway)
I am with the way of thinking that the rings will indeed rotate as the engine runs. They can on a 4 stroke engine but on many small 2 stroke engines there is is an alignment PIN inside the ring groove of the piston that keeps the rings stationary.
