Another stupid coolant crossover-steam pipe question
05-27-2009, 10:00 PM
#1
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Another stupid coolant crossover-steam pipe question I read through all kinds of posts and didnt really find an answer....
IS the front crossover pipe under pressure?
Can i connect it to the overflow tank , or does it have to be connected to the pressurized coolant system?
IS the front crossover pipe under pressure?
Can i connect it to the overflow tank , or does it have to be connected to the pressurized coolant system?
05-28-2009, 12:05 AM
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Vent tube On my Silverado, the T.B. vent tube goes to an inlet fitting on the water pump inlet tank side, about 8" above the lower rad hose inlet to the water pump.
The coolant being drawn down the tank past the fitting to the outlet, causes a suction on the T.B. vent tube and will pull any trapped air out of the heads.
The coolant being drawn down the tank past the fitting to the outlet, causes a suction on the T.B. vent tube and will pull any trapped air out of the heads.
05-28-2009, 10:07 AM
#6
Just drill a hole in the water pump casing and tap a 3/8 NPT fitting. You can then fit a hose barb or just about any other fitting imaginable there.
You can also put fittings on the radiator itself.
JTR sells a T to connect the coolant line to the main radiator hose. Makes for a more direct connection.
You know they probably should not have called that a steam vent. It is just another coolant passage to keep water flowing through the heads.
You can also put fittings on the radiator itself.
JTR sells a T to connect the coolant line to the main radiator hose. Makes for a more direct connection.
You know they probably should not have called that a steam vent. It is just another coolant passage to keep water flowing through the heads.
Last edited by Pop N Wood; 05-29-2009 at 05:29 AM.
05-28-2009, 09:43 PM
#7
question cant you just cut it, weld it so that the tube just runs
from head to head, doing a swap also and I dont
understand the importance of the part.
I thought on the truck models it was to cool the throttle body housing.
from head to head, doing a swap also and I dont
understand the importance of the part.
I thought on the truck models it was to cool the throttle body housing.
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05-28-2009, 09:59 PM
#8
It needs to go into the cooling system, it allows steam to escape the heads to prevent hot spots. The line is routed through the throttle body to warm it, not to cool it. Primarily for cool climates to help warm up faster. For performance apps, it's best by-pass the throttle body and go straight into the pressurized system somewhere.
Pat
Pat
05-29-2009, 05:28 AM
#9
People who have done it claim no problems. But there are a lot of other people who feel it will cause problems.
Your car, you're choice.
05-31-2009, 12:26 AM
#11
There are those that do cap them off, but for no more effort than it takes to hook it up why not. I didn't have a nipple on the radiator tank yet, on a project a couple years ago. I just had it capped off with a piece of hose and a bolt for the maiden voyages. It was fine until I ran through the gears hard and it blew the piece of hose off and puked steam and coolant everywhere. So it is def pressurized, and def lets steam escape from the top end.
