So I've come to the conclusion that these 6.7L's are losing head gaskets due to excessive back pressure, not boost. Now that I've been messing with my display and monitoring all the pressure and tracking the maximum values, it has become apparent that the drive pressure in these trucks hits 100 psi often if you leave your exhaust brake enabled like I always do. It seems every time I look down, the max on the drive pressure is at 100 (the max I set for that parameter). I'll change it to 200 and see what it goes up to. This is data coming from the OEM sensor via the ECM, not an external sensor. All factory.
Wouldn't it be simple to put a small BOV on the drive pressure tube so the max it would allow could be adjusted down to say 60 psi or so? Sure it would decrease braking a little, but Jesus, 100 psi drive pressure can't be good on parts....can it? A small valve on that 1/4 inch line wouldn't release a huge amount of air but it would reduce the initial hammering of the pressure on the gasket...or would it not?
Discuss. :D
Wouldn't it be simple to put a small BOV on the drive pressure tube so the max it would allow could be adjusted down to say 60 psi or so? Sure it would decrease braking a little, but Jesus, 100 psi drive pressure can't be good on parts....can it? A small valve on that 1/4 inch line wouldn't release a huge amount of air but it would reduce the initial hammering of the pressure on the gasket...or would it not?
Discuss. :D
0 commentaires:
Enregistrer un commentaire