Vacuum hoses popping off

[Satan]

Okay,
So I want to get this resolved by this weekend, so I am asking early (earlier than I usually do). Specs - single turbo JDM 2JZ, relocated oil filter, US cams, Tial/knock-off BOV, SSautochrome wastegate. Nothing out of the ordinary.

Went for a few drives last weekend (even tho I was sick as a dog), and found that the vacuum lines at the power steering VSV nipples got popped off, the one at the throttle body blew the little blue/black check valve off, and the one that was going to the wastegate is hanging down by the oilpan. Fing overboosting felt too good!

The wastegate line is hooked up to the manual boost controller, which is hooked up to the nipple on the front of the turbo. All of the other vacuum lines seem fine.

I did notice a couple of the lines looked flattened before... cheap silicone that gives when vacuum's applied?

Still, these lines got blown off and the line to the wastegate is silicone (I know that needs to be replaced... with what?).

I searched (61 posts on SF) and could not find any reasons for the vacuum lines popping off like that. What gives?

 

[p5150]

put a tiny zip tie on them. You can also buy high temp rubber vacuum line from an industrial hose supply store.

 

[Satan]

Yeah, I started to ziptie some, but will still replace many of em with the thicker sidewalled black vacuum lines. That way they don't flatten out (at least one of them that I see.

I forgot about the industrial hose place. Good info!

 

[annoyingrob]

Platinum cured silicone works well too. The heat and oil won't affect it.