piston sleve question

[Mn Monster]

i'm putting a new crank in my trx 2.5 r , which way does the piston go into the sleeve which side should be facing the exhaust post? the open part of the skirt or the solid side ?

 

[Extreme RC Mods]

The open side of the skirt goes towards the crank, that way at TDC it doesn't open on the bottom side of the exhaust port. The rod also has a small hole drilled just above the bottom bearing, that has to face the crank as well so it can get lubrication between the crank pin and bearing.

 

[moe7404]

use marvel mystery oil on the inside parts for lube. all so you can use permatex ultra slick engine assembly lube item #81950. it is thicker. get it at advance auto, or auto zone. it does very good at lubing parts