coolant overflow tank delete

[blue6gen]

So lately i havd been having engine temp issues. I noticed when i first got the car that there is no overflow tank. Could this be part of my issue?

 

[rEclipserGST]

Yes. An easy way to tell would be add one. When coolant heats up, it expands. So your coolant expands into the overflow chamber. Once it cools or the radiator cools the coolant inside it, it goes right back in. Must have the overflow tank sealed off.

Could be faulty radiator cap. Or pinhole in radiator hose. Bad coolant temp sensor. Clogged radiator (you can blow water & or air thru here to check. Backflush it.) or even a bad head gasket. More than likely, it is one of the first 4.

 

[BoxheadTim]

My GSX had cooling issues when I got it, partially due to the missing header tank. Once the engine got warm enough to open the pressure cap, it would just spit out coolant and when the engine cooled down again, you'd end up with slightly low coolant and air in the engine instead of fluid.

Affixing a cheap overflow tank sorted out that particular problem, but it's not a cure-all. I still have coolant temperature issues on warm days .

 

[blue6gen]

Well the radiator,cap and t-stat are all new and there are no leaks. Doubt it is a headgasket because im sure there would be more severe symptoms. Ill try a mock up tank and see what happens.

 

[BoxheadTim]

When you remove the rad cap on a cold engine, is the filler neck full of coolant or is there some air in there? If there is, you're losing some coolant due to the fluid expanding when it gets hot (which is normal). That's basically what the overflow tank is supposed to prevent.

You won't notice a leak in the sense that there's a puddle under the car because the coolant will leak out while the engine is running.

When you started having engine temperature issues, did that coincide with the warmer weather?

 

[blue6gen]

When you remove the rad cap on a cold engine, is the filler neck full of coolant or is there some air in there? If there is, you're losing some coolant due to the fluid expanding when it gets hot (which is normal). That's basically what the overflow tank is supposed to prevent.

You won't notice a leak in the sense that there's a puddle under the car because the coolant will leak out while the engine is running.

When you started having engine temperature issues, did that coincide with the warmer weather?

Well i just recently aquired the car so i have only had it in warm weather. But it will only do it after about either a week of daily comuting(16 miles daily) or after about 2hrs of around town driving.

 

[97gst_spyder]

I'm missing coolant with an expansion tank. No hg issues, no leaks(via dye), new cap...

 

[BoxheadTim]

Ah, was just wondering as mine started to run rather hot once the temperatures around here hit 75.

The fact that it takes a while until the engine gets that hot would suggests that you're probably dribbling coolant out of the connector for the overflow tank until you're a little low on coolant. I assume you're looking at the stock temperature gauge? It takes quite a large temperature increase to move it noticeably at running temperature - a little movement on the gauge looks a lot more scary if you have the ability to look at a data log like the ECMlink datalog...

 

[blue6gen]

Ok so here is the deal. Just went outside to check where the hose that orig. went to the overflow tank is going. Its going into some make shift black tank.

You must be logged in to view this image or video.

Hose is going to the bottom of it and there is a vent fitting and another hole in it.

 

[BoxheadTim]

Looks like an aftermarket overflow tank to me.

Does it have any coolant in it? Any way to add coolant?

 

[thector1]

Just get one from Autozone for 8 bucks. Worked for me..

 

[blue6gen]

Well the tank was really low in the engine bay and almost laying on its side. There was colant in it but i dont think it was being accesed by the vacume source.

 

[XiKeiyaZI]

.........................wha-...

Sorry - This would be my old vehicle. That is, in fact, an aftermarket tank as the original one ruptured due to age, I would assume. What astounds me is why it is zip-tied that low instead of mounted to the chassis where I originally had it. I really would like to find these guys who had it before you and uppercut them.

Just relocate the tank and add coolant by a burp method or through one of the lines.

 

[907gs-t]

Coolant-overflow-tanks install one of these that he custom make's for are auto's & call it a day. http://www.dsmtuners.com/forums/members/92awdgsx-29261.html

 

[kthackst]

http://www.dsmtuners.com/classified...vices-10/coolant-overflow-tanks-24048/Install one of these & call it a day that's what I did to mine.

Coolant Overflow Tanks - DSM Classifieds FTFY

 

[907gs-t]

^^^^^^ That's the one I'm talking about.^^^^^^^^^^^

 

[blue6gen]

.........................wha-...

Sorry - This would be my old vehicle. That is, in fact, an aftermarket tank as the original one ruptured due to age, I would assume. What astounds me is why it is zip-tied that low instead of mounted to the chassis where I originally had it. I really would like to find these guys who had it before you and uppercut them.

Just relocate the tank and add coolant by a burp method or through one of the lines.

Yeah dude, u have no idea the amount of stuf i have either finish or just totally redo.

I think if i reposition this tank and add some more coolant the issue should hopefully right itself. How do i go about adding coolant to it? None of the fittings seem to be removable.

 

[XiKeiyaZI]

Yeah dude, u have no idea the amount of stuf i have either finish or just totally redo.

I think if i reposition this tank and add some more coolant the issue should hopefully right itself. How do i go about adding coolant to it? None of the fittings seem to be removable.

You should be able to remove the hose from the nipple on the thermostat and add from there.