1999 V70 T5 PCV separator box mounting question

Post by **abscate** » 08 Jul 2015, 16:16

Okay...should the plastic boss on the lower connector for the PCV box point towards engine or the box?

Dog doesn't like the first one..

VIDA has a poor picture which looks like towards engine block.

My mechanic intuition says rubber part should touch plastic box, metal touches metal.

Post by **kahl** » 08 Jul 2015, 17:05

Let me ask my guy

Post by **abscate** » 08 Jul 2015, 17:22

Post by **abscate** » 09 Jul 2015, 04:22

Volvo picture seems to show boss goes to block side

Sommerfeldt · Post by **Sommerfeldt** » 09 Jul 2015, 08:03

As far as I can remember, I've put it block side on my PCV changes. Not saying it's the right way, but it's my way at least...

- S

Post by **erikv11** » 09 Jul 2015, 08:47

I've been putting them to the trap side. I reasoned that the block gets hotter, why cook the collar if you don't need to. I can tell you they don't leak when turned to the trap side, FWIW. But that graphic would be my guide, I would go block. Will if I think of it next time(s).

Post by **cn90** » 09 Jul 2015, 09:35

It doesn't matter that much.
I have done it both ways, no issues whatsoever.
It is just a short hose to connect the oil trap opening to the engine block and that is all.

Post by **cn90** » 09 Jul 2015, 09:37

In the thread below, it looks like the boss touches the engine side.

http://volvospeed.com/vs_forum/topic/12 ... l-leaking/

Post by **Ozark Lee** » 09 Jul 2015, 16:20

I always put it toward the block as well but I really don't think it matters. I usually put hose clamps on both sides but that isn't really required either.

...Lee

Post by **FLXC90** » 09 Jul 2015, 18:02

From an engineering standpoint, I would "assume" it's boss to block to damp vibration and allow for thermal expansion differential between the two-even though it's mounted together.

Maybe that's why I'm not an engineer!