Thread: help rings
09-06-2007, 06:27 PM #1
- Join Date
- Aug 2007
- kingsport. tn.
is there a up or down for rings on sl780 .this is the 2nd. rebuild on top end the pto . cly . sucked the top ring. center piston a ok .mag cly .started to burn .top of piston. any ideas.please email.
firstname.lastname@example.org. thanks butch.
09-06-2007, 07:46 PM #2
butch, WELCOME to the Green Hulk Forums!!!
Check for fuel contamination.
Water in tank
Dirt or foreign materials in carbs
Fuel selector switch etc.
Have a photo of the plugs, piston tops and domes?
09-10-2007, 11:58 AM #3
Yes there is a top and bottom depending on the ring style. If you have the wedge shaped rings, you want to have the angled side pointing up. If you have the L shaped rings then you want the lip on the L pointing up, if you have rectangular rings then I'm not sure but usually the side with the numbers / stamped letter is the side that goes up. I know there is a diagram in my manual, I can scan and post if needed.
09-10-2007, 12:00 PM #4
Might want to do a crank case pressure test once you are done assembling, that can also cause premature piston failure.
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