MellowVR4
(5" too short)
07/21/15 07:55 AM
Coolant system?

So here is my little issue that I've been having... Ever since I removed my radiator to weld up a leak and refilled my coolant system with coolant. I can't seem to get it burped all of the way. I.E I can remove my radiator cap when the engine is cold ( before even starting it ) and the cap would be pressurized and some coolant comes out ( makes a mess ). Usually the cap will be pressurized when the engine has just been shut off but not when its cold..

Does anyone have any ideas?

Is their still air in the system?
Is my thermostat not opening up?
Do I possibly have a blown headgasket?
Blockage in the system somewhere?

Any help would be great thanks.


prove_it
(my racist jokes aren't actually funny)
07/21/15 08:08 AM
Re: Coolant system?

Do you have another radiator cap? Try swapping that.

MellowVR4
(5" too short)
07/21/15 08:12 AM
Re: Coolant system?

Are you saying it might be too heavy of a spring?

thomcasey
(I ain't no puny human)
07/21/15 08:18 AM
Re: Coolant system?

Spring should only be 13 lbs. It should bleed off pressure so when you are cool/cold start there will be no pressure.

MellowVR4
(5" too short)
07/21/15 08:20 AM
Re: Coolant system?

Ok, yeah that makes sense, I will get one from the store and try it.

MellowVR4
(5" too short)
07/21/15 08:29 AM
Re: Coolant system?

I guess my cap can be failing.. It's not that old tho so it would be weird if it is.

prove_it
(my racist jokes aren't actually funny)
07/21/15 08:38 AM
Re: Coolant system?

Always start with the easy stuff. The cap regulates coolant pressure, sounds like it's not releasing properly. Otherwise, do you have an OEM thermostat?

MellowVR4
(5" too short)
07/21/15 08:47 AM
Re: Coolant system?

I do believe it has an OEM one in their, But that could be failing too if its not the cap.

prove_it
(my racist jokes aren't actually funny)
07/21/15 10:38 AM
Re: Coolant system?

I wouldn't think it would keep the system pressurized like the cap would.

As far as air is concerned, doubt that. I do recommend these for burping. I have one at home and at work.
Coolant bucket.


MellowVR4
(5" too short)
07/21/15 10:40 AM
Re: Coolant system?

I heard those work sweet, im definitely picking one of those.

prove_it
(my racist jokes aren't actually funny)
07/21/15 11:01 AM
Re: Coolant system?

If you can, get the newer version with a lid. It makes a difference.

turbowop
(Hard Snarker)
07/21/15 01:36 PM
Re: Coolant system?

You need to control your fans with 'link.

prove_it
(my racist jokes aren't actually funny)
07/21/15 03:59 PM
Re: Coolant system?

I see what you did there.

matt92vr4
(Member ++)
07/23/15 05:10 PM
Re: Coolant system?

I second the coolant bucket. Very cool tool.

MellowVR4
(5" too short)
07/28/15 10:05 AM
Re: Coolant system?

Well it seems changing the radiator cap worked with the pressure build up issue I was having... I also replaced my thermostat which was really gunked up with minerals from the tap water I'm guessing. I feel like I might have to replace my cheap water temp gauge to a better one, seems to be inconsistent with the readings. When I come up to a stop the temp will go up slightly over 200 but my stock gauge will not move from its normal state ( which is a little bit to the left from the center). Once I take off it'll come back down below 200, still my stock gauge doesn't move at all. I purchased the coolant bleeder funnel ( works great btw )and burped the system. My sensor probe for the AM gauge is a little loose So I feel like its not reading properly...

prove_it
(my racist jokes aren't actually funny)
07/28/15 10:18 AM
Re: Coolant system?

The stock coolant gauge is horribly inaccurate. You can be at a temp between 180 and 210 and it will show the same position. By the time it moves to hot, your already pushing 230.

MellowVR4
(5" too short)
07/28/15 10:22 AM
Re: Coolant system?

I did have a 180 stat in it before, now I have a 195 (stock) and its never ran this hot. might be going back to the 180.

marvinmadman
(Senior Member)
07/28/15 10:36 AM
Re: Coolant system?

Be sure to get an OEM Stat or a Murry Ultrastat. The valves are actually bigger in these.

MellowVR4
(5" too short)
07/28/15 10:39 AM
Re: Coolant system?

I bought it from napa and it was their ALTROM line so its like oem. very good quality stat.

marvinmadman
(Senior Member)
07/28/15 11:47 AM
Re: Coolant system?

Measure it

marvinmadman
(Senior Member)
07/28/15 11:55 AM
Re: Coolant system?

click

G
(JDM Unit)
07/28/15 12:12 PM
Re: Coolant system?

I think the stant # 45868 (180) is large like the murray. I've had really good luck with stant.



marvinmadman
(Senior Member)
07/28/15 12:15 PM
Re: Coolant system?

It could be. I remember it being a long time ago, but never got around to comparing one.

thomcasey
(I ain't no puny human)
07/28/15 12:48 PM
Re: Coolant system?

If you look closely at the pics, the valves are actually the same size, the Murray just has that bullet tip that is much larger than it's valve.

marvinmadman
(Senior Member)
07/28/15 02:06 PM
Re: Coolant system?

Which pic you referring to?

thomcasey
(I ain't no puny human)
07/29/15 06:29 AM
Re: Coolant system?

The first pic that comes up in the link to the other thread you provided, BUT: Nevermind, lol. I zoomed the pic this morning and can see the break showing that the Murray is much larger for flow.

marvinmadman
(Senior Member)
07/29/15 09:06 AM
Re: Coolant system?

Correct

MellowVR4
(5" too short)
08/17/15 08:51 AM
Re: Coolant system?

Put a 180 thermostat in this weekend, everything back to normal, temps are where I like them to be so im happy


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