Valve cover hoses?

[MonsterFan88]

Hi everyone I'm building a monster truck and I'm wondering what the hoses coming from the valve covers on both sides are connected to?

[Straightliner59]

They're puke hoses, I'd guess. The probably go into a tank. They are the same thing as these:

[johnyrotten]

https://www.hotrodders.com/threads/crankcase-evac-through-headers-how-does-it-work.193392/

 

[TECHMAN]

Cannot tell (by the picture) but, as Daniel said, with those type of headers, are probably hooked to a "catch-can".  On many systems, they hook to a diverter valve in the header-collector to provide a negative pressure in the crankcase.  Guess best bet is to attempt to see "where" they hook up to.....  Hope that helps....

DJ

[Fat Brian]

Is that it sticking out of the back of the frame in the second pic? With monster trucks primarily being on dirt those tubes going into a tank isn't nearly as important as it is on a drag car or similar.

[TECHMAN]

1 hour ago, Fat Brian said:

Is that it sticking out of the back of the frame in the second pic? With monster trucks primarily being on dirt those tubes going into a tank isn't nearly as important as it is on a drag car or similar.

Many years back (before our government got so "hyper" about emissions), a common thing was to use the Moroso (or MOPAR) breathers which had a rather effective stacked baffle system inside, hook hose to the nipples, and just run them down the back of the block, and let them just vent into the great outdoors.  Worked well, but probably wouldn't be too popular in some states now days......😉

DJ

[Straightliner59]

6 hours ago, Fat Brian said:

Is that it sticking out of the back of the frame in the second pic? With monster trucks primarily being on dirt those tubes going into a tank isn't nearly as important as it is on a drag car or similar.

That much is true.

[Ace-Garageguy]

5 hours ago, TECHMAN said:

Many years back (before our government got so "hyper" about emissions), a common thing was to use the Moroso (or MOPAR) breathers which had a rather effective stacked baffle system inside, hook hose to the nipples, and just run them down the back of the block, and let them just vent into the great outdoors.  Worked well, but probably wouldn't be too popular in some states now days......😉

DJ

Before the advent of PCV systems (positive crankcase ventilation, 1961 in Cali), production cars had essentially the same thing, called a "road draft tube" that vented the valve covers down a tube behind the block, where any oil that condensed from the mist/vapor would just drip on the ground.

That's one of the main reasons the center of every lane was discolored back then, considerably worse than today.

Edited Tuesday at 11:08 PM by Ace-Garageguy
punctiliousness

[sidcharles]

Pop's 1960 Falcon had that

[TECHMAN]

First car that I got hold of that did not have the metal vent tube that BILL mentioned, was a California car, '64 Impala SS

DJ