Kelly.

i was wondering if this will be ok?
i had to change up my radiator setup so im looking for a cleaner place to connect my steam vent.

id like to tap the piece where the lower radiator hose connects to
id tap where the silver dot is in this photo:


any input on this would be helpful
thanks,

btw it is a truck motor in a nissan 240.
thanks again.

dennyd

iTrader: (2)

Mine is conected to the top hose. jags that run has adaptors.

Kelly.

i dont have much space to connect it to the top radiator hose (which is how it was before)

is it wrong to connect it to the lower radiator hose?

Tommy69z

iTrader: (4)

I have read on here where it ok to plug the lines at the head, that the only reason they were there was to heat the throttle body.

bczee

iTrader: (12)

I would like that the lower is under suction and that if the vent was letting air/steam out, the water pump might suck it back into the system rather than allowing the air/steam to exit into the radiator tank and exit the sytem through the cap and overflow tank ?

Kelly.

if that holds true the people that are using the tapped water pump method would be having problems i would think.

any more input

eastcoastbumps

iTrader: (1)

You need to have that line attached higher than the steam pipes so the air can vent. It won't vent down.

eastcoastbumps

iTrader: (1)

Thats not true, and its not ok to plug those lines.

rdrage728

you can tap the top of the water pump right in front of the upper hose, I did mine that way and have seen several others. seems to do fine

jomomma

iTrader: (39)

i capped mine and have`nt seen any problems.

Pop N Wood

iTrader: (1)

Just plug the lines. Don't get cleaner than that.

SUPERWAKE502

iTrader: (1)

I plugged mine too and havn't had any problems in 100 degree Florida weather just sitting. So If it does cause a problem someone needs to explain what it is.

Kelly.

thanks guys, i think i will just plug them.
i saw a link on here to the plugs, ill post it when i find it.

Kelly.

here it the link to the adapters
http://s41657.sites80.storefront-hos...l.aspx?ID=3289

do i need these or can i just plug them (i havent pulled them off the car yet, so excuse my ignorance... plus im at work)

thanks in advance.

69LT1Bird

iTrader: (1)

The vent is there to evacuate the trapped air from the highest coolant point of the engine, the heads. Since the LT1 (the first to use this) and the LSx engines do not flow coolant through the intake manifold, the designers needed a way to get the air out.

If you just plug them you run the risk of trapping air in the system and causing hot spots in your cylinder heads.

The location of the vent hose to the radiator/water pump/heater hose does not really matter.

You do not have to worry about locating the hose to the highest spot, the system is under pressure so it really doesn't matter. The air will make it to one of the bleed valves or to the coolant reservoir. Any air in the vent hose got there because the vent system is the highest spot.

Kelly.

so youre saying its not good to plug them?
but it will be ok for me to tap it into the lower radiator hose?

69LT1Bird

iTrader: (1)

Don't plug them.

Yes, the lower hose is fine.

Kelly.

ok, ill just tap it into the thremostat housing.
ill post pictures when its done.

eastcoastbumps

iTrader: (1)

So how does the air flow down to the thermostat housing? I'm curious, because I've only seen bubbles rise to the top. Maybe I should have a few beers and check to see if they start going down after a while. Or maybe I should shake a bottle and put it under pressure and then the bubbles will flow down...

69LT1Bird

iTrader: (1)

What part don't you get, it is at 18psi. The air is in the heads and gets forced out the tubes in the front of the heads. From there it is reintroduced back into the system eventually to be released to the atmosphere with the cap off or the overflow bottle.

Now, go have your beer and think about how your cooling system works, GM doesn't spend millions designing and testing these systems for no reason. Internet engineers crack me up.