Need Help: Water Pump Removed - Heating Issue? - Page 5 - Lateral-g Forums

camaro1969 · #41 06-09-2014, 03:56 PM

Quote:

Originally Posted by GregWeld

Just to be sure --- have you had the radiator cap OFF when the car is cold ----- and then let the motor come up to temp --- and watch the water flow when the thermostat opens up??

You always have to be careful doing this - because sometimes they'll "burp" hot coolant..... but sometimes that's the problem! They have air trapped in the system that needs to get the hell out of there!

It's also useful information for you to see the water flow and now it's going the right way and has some pretty good movement to it.

If your cap is on the driver side tank -- where is your upper hose? Assuming the bottom (suction) hose is on the passenger bottom...

With this arrangement - water should be coming into the tank from the upper hose.

I did have the rad cap off the first time, at around 150-160, the water started to flow out of the rad, made a mess, i stayed clear. After it overflows, should i be replacing the water that over flowed? Feel like if i let the water keep flowing the rad would eventually become empty.

Cap is on the passenger side, hose from the thermostat housing goes to a driver side of the rad

camaro1969 · #42 06-09-2014, 04:00 PM

Quote:

Originally Posted by GregWeld

And -- as long as I'm writing a book on cooling...

Is your bottom (suction side) hose reinforced?? It should have a spring inside of it to keep the hose open... they can be sucked almost closed at cruising speeds if they're not internally supported. Lots of guys just chuck the spring --- dumb move guys! These pumps move a LOT of water volume... you'd be shocked how much suction they can create.

All the fans in the world won't help you if the hose is collapsing....

You should be able to reach down and squeeze the hose to check for the spring.

You can also visually inspect the hose with the car running and have somebody rev the car up and watch to see if the hose is trying to suck in on itself.

I dont believe there is a spring. I havent squeeze it while running. It is shaped perfectly to connect my rad to the water pump. I can try to see if there is a spring today.

I have not seen it collapse on itself

Vince@Meanstreets · #43 06-09-2014, 05:07 PM

Quote:

Originally Posted by camaro1969

I did have the rad cap off the first time, at around 150-160, the water started to flow out of the rad, made a mess, i stayed clear. After it overflows, should i be replacing the water that over flowed? Feel like if i let the water keep flowing the rad would eventually become empty.

Cap is on the passenger side, hose from the thermostat housing goes to a driver side of the rad

should have a catch can that will return fluid to he system during cool down. i like to use this on on everything. http://www.classicindustries.com/nova/parts/551448.html
tucks into the fender area.

I use my temp gun for everything. Rotor temp, tire temp, misfire detection, belt slip detection, electrical shorts or malfunctioning components...shoot it into my ear for an excuse to go home.

**GregWeld** · #44 06-09-2014, 05:09 PM

Quote:

Originally Posted by camaro1969

I did have the rad cap off the first time, at around 150-160, the water started to flow out of the rad, made a mess, i stayed clear. After it overflows, should i be replacing the water that over flowed? Feel like if i let the water keep flowing the rad would eventually become empty.

Cap is on the passenger side, hose from the thermostat housing goes to a driver side of the rad

So once the water burped out of there -- and made a mess -- it should STOP doing that after it's initial puke....

Then -- YES -- you should top off the radiator - using only distilled water or a mix of distilled water and the proper anti freeze (for aluminum radiators!)... when the engine is NOT running... these big crossflow radiators should only be filled til there is about 6" of free space in the tank. Sometimes you'll need a flashlight to look in.... leave some space! Water expands - and these big radiators need some room for expansion.... If you fill them to within a couple inches of the cap -- they'll puke out!

You might find that if you haven't topped off the radiator since you puked some coolant - that is your trouble right there....

Vegas69 · #45 06-09-2014, 08:53 PM

I agree, you need to let it burp and make a big mess and then let it continue to purge minor pockets after the tstat opens. It can be topped off when all air is out and at full operating temp. A proper overflow/return will keep it from making a mess unless you get it really hot like Vince mentioned.

Sounds like your sensor may have been in an air pocket.

camaro1969 · #46 06-11-2014, 11:43 AM

Quote:

Originally Posted by Vince@MSperfab

should have a catch can that will return fluid to he system during cool down. i like to use this on on everything. http://www.classicindustries.com/nova/parts/551448.html
tucks into the fender area.

I use my temp gun for everything. Rotor temp, tire temp, misfire detection, belt slip detection, electrical shorts or malfunctioning components...shoot it into my ear for an excuse to go home.

I have a catch can.

And yeah same, been using it for everything. I will start using it more when the car is on the road.

camaro1969 · #47 06-11-2014, 11:45 AM

Quote:

Originally Posted by Vegas69

I agree, you need to let it burp and make a big mess and then let it continue to purge minor pockets after the tstat opens. It can be topped off when all air is out and at full operating temp. A proper overflow/return will keep it from making a mess unless you get it really hot like Vince mentioned.

Sounds like your sensor may have been in an air pocket.

Sounds good. I will let it burp fully.