ANYTIME the ring pin comes out (any piston brand) its from DETO...add a thicker base gasket/raise octane to eleiminate...BJ
what pistons for 05 800? dual or single ring?
- Thread starter ragincajun
- Start date
ANYTIME the ring pin comes out (any piston brand) its from DETO...add a thicker base gasket/raise octane to eleiminate...BJ
or put in backwards :face-icon-small-win-BJ
B
Thanks BJ, guess my mech knew this already and was talking about installing these pistons instead of the wiseco or some other brand, glad you cleared up some of the issues i feel alot better about going for a duel ring piston now.
Piston Replacement
What is the standard practice on these cylinders to properly prep for new pistons and rings?
What is the standard practice on these cylinders to properly prep for new pistons and rings?
R
Shr installation instructions verbatim:
Bj/shr installation instruction:
1. Install pistons, cylinders, head (or whole engine) per SKI-DOO manual specs. Before installing your cylinder, be sure to wash it with hot soapy water. The crosshatch in your NSC surface will trap dirt & grime, so please be very thorough. Less than thorough cleaning could result in scuffing, scoring, irregular wear, or seizure of the piston to cylinder walls. After washing, use compressed air to blow out all passages in the cylinder to ensure it is completely dry. SHR final cylinder prep: First use WD-40 to wipe bore out. Second, use 2 stroke oil liberally and thoroughly wipe entire bore at least 2 times prior to the assembly.
Lefty
Bj/shr installation instruction:
1. Install pistons, cylinders, head (or whole engine) per SKI-DOO manual specs. Before installing your cylinder, be sure to wash it with hot soapy water. The crosshatch in your NSC surface will trap dirt & grime, so please be very thorough. Less than thorough cleaning could result in scuffing, scoring, irregular wear, or seizure of the piston to cylinder walls. After washing, use compressed air to blow out all passages in the cylinder to ensure it is completely dry. SHR final cylinder prep: First use WD-40 to wipe bore out. Second, use 2 stroke oil liberally and thoroughly wipe entire bore at least 2 times prior to the assembly.
Lefty
Prep
So no hone or finish work?
So no hone or finish work?
R
Good call...if you are going to hone, bj uses 320 grit flex ball hone WITH honing oil!!! Once finished, prep cylinders as previously described.
If you have access to appropriate tools, you may wanna check/verify clearances
Lefty
S
Here are some pics of an OEM piston from my 05' 800 HO. The pin works it's way into the piston and allows the ring to move until it tags an exhaust port. Happened twice in 2000 mi. Went with RK TEC drop in kit, dual ring pistons and better head.
