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+--- Thread: OM617A Sodium filled valves as Intake valves (/showthread.php?tid=8104)
OM617A Sodium filled valves as Intake valves - Hellcat94 - 08-29-2018
So the turbo model of the Om617, the om617a, comes with sodium filled exhaust valves in the head. The whole purpose as I understand it is that the sodium absorbs the heat and keeps the exhaust valves from burning up. An added bonus is that they are about 15% lighter than their solid stem intake amigos, which lightens up the valve train.
The question/hypothesis i have is, could you use the sodium filled exhaust valves in place of the solid stem intake ones, so then you would be running 10/10 cooler & lighter valves?
The exhaust valves are 23ish dollars each and only about $3 more expensive than the intake valves. I think they are the exact same size with 10mm shaft, but I have no proof on length /head shape yet, i havent been able to compare them.
Does anyone have any thoughts on this or a pair of spare valves to compare for me?
Much appreciated, thank you.
RE: OM617A Sodium filled valves as Intake valves - bullonezero - 08-30-2018
The exhaust valves are of a smaller diameter than the intake
RE: OM617A Sodium filled valves as Intake valves - NZScott - 08-30-2018
There's lot of better mods before you worry about intake valves IMO
RE: OM617A Sodium filled valves as Intake valves - starynovy - 09-05-2018
Sodium cooling efect will not take place at intake temps.