Originally Posted by
holyc0w
What's CCAF?
Originally Posted by
az3579
I'm assuming Catch Can Anti-Freeze, since he has heating elements installed on his can to prevent freezeups.
dang, nice job! you got it.
Originally Posted by
az3579
Peter,
How would some condensation hydrolock the engine? Wouldn't the condensate just burn once the engine is warmed up? Do you think such a small amount is enough to be a problem? I thought a considerably larger amount of water was required for there to be an issue, which is why I ask.
it's not the condensate, although i don't want that going back through my engine either if i can help it... it's oil getting sucked right out of the oil pan, through the return line. it's happened before when the CCV freezes - it's an extreme scenario, but entirely possible. in short, the intake manifold pulls vacuum on the CCV, but the consendate in the lower half of the CCV is frozen (and thus blocking the outlet from the valve cover), so the oil from the pan comes right up the drain tube. clearly a gross oversight on BMW's part... the 1-way check valve would prevent destruction.
Originally Posted by
az3579
Also, for the check valve - what size is needed? I haven't had time to watch the video, but I'm trying to order all the parts I need so they arrive before the weekend, so time is of the essence. I ordered the CCV parts a couple of nights ago - it seems like this check valve is the last thing I need. Is it the 12mm that comes up by default when I click on the link?
yep, it's that exact one! essentially it allows the oil and condensate to drain back into the oil pan - like the OEM design - but does not allow oil to come back up. it's a 1-way valve.
peter
2004 330i ZHP
2005 330iT ZHP
2010 328iT M Sport