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  #31  
Old 04-20-2014, 01:55 PM
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Re: Strange over heating

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Originally Posted by Wikedjuggalo View Post
Go to a local auto parts store and get the loaner tool to check the cap. Make sure you got all the air bubbles out. I suggest raising the front of the car so the radiator is the highest point. Heat on high and fill as needed.

If the cap comes back good, bleed the system and you still lose coolant / overheat it will probably be what you don't want it to be. When was the water pump last done?
Like two monts ago I did the water pump and befor that a new thermostat.
I didn't know they had a tool for that.

We'll if it is a headgasket problem it's not that big of a deal for me cus I've done one before on a svx.
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  #32  
Old 04-20-2014, 02:09 PM
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Wikedjuggalo Wikedjuggalo is offline
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Re: Strange over heating

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Originally Posted by stiguy View Post
Like two monts ago I did the water pump and befor that a new thermostat.
I didn't know they had a tool for that.

We'll if it is a headgasket problem it's not that big of a deal for me cus I've done one before on a svx.
If you are having coolant boil over and also losing coolant its probably HG. You have eliminated everything else at this point.

Just go through testing the cap and make sure you burped the system correctly. Also a cap from a dealer or online is cheap enough ensure a working cap.
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  #33  
Old 04-20-2014, 07:55 PM
1986nate 1986nate is offline
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Re: Strange over heating

Definitely sounds like the HG at this point. Exhaust/combustion gases enter the coolant chambers pushing the coolant into the reservoir.
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  #34  
Old 04-29-2014, 01:17 AM
Chucksta Chucksta is offline
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Re: Strange over heating

Or... test it the other way.. pressurize the cooling system, if it leaks down, but doesn't leak out of the car...

After that test, if it leaks pressure, but there's no visible leak of coolant, you'll probably get a good whiff of it out the tail pipe when you start her back up.

The rough explanation would be that when you were running, the head gasket leaked just enough to push coolant into the reservoir. But, when the system cooled, instead of sucking coolant back into the system, it sucked air from the leak in the head gasket from the cylinder back into the cooling system, leaving the expelled coolant in the overflow.
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  #35  
Old 05-02-2014, 06:18 PM
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Re: Strange over heating

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Originally Posted by Chucksta View Post
Or... test it the other way.. pressurize the cooling system, if it leaks down, but doesn't leak out of the car...

After that test, if it leaks pressure, but there's no visible leak of coolant, you'll probably get a good whiff of it out the tail pipe when you start her back up.

The rough explanation would be that when you were running, the head gasket leaked just enough to push coolant into the reservoir. But, when the system cooled, instead of sucking coolant back into the system, it sucked air from the leak in the head gasket from the cylinder back into the cooling system, leaving the expelled coolant in the overflow.
Ahh! Good point!! Thanks

Btw can the thermostat be installed backwards? Or does it only fit in one way?
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#1 1994 Ls ebony parts car-rip
#2 1994 L laguna blue - sold
#3 1992 Lsi pearl white - sold
#4 1992 Lsi pearl white -Ate two engines - Rip
#5 1994 L Laguna Blue fwd - Now Awd and manual - 03 wrx 5mt - 18's stern warp st4s - totaled hit a tree
#6 1992 Lsi custom orange parts car
#7 1992 Lsi green 4.44 swap. Currently for sale
#8 1992 Lsi custom pearl white. Project car... sold
#9 1992 Teal 4.44 swapped... sold
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#11 1994 Laguna Blue. Came with #10 engine and trans are out but plan to put it back on the road. Willing to sell it at any time! 😂
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  #36  
Old 05-02-2014, 08:06 PM
Tapani Tapani is offline
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Re: Strange over heating

The thermostat goes in the correct way only. It is possible to put the bleed nipple down, which is not correct. T
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  #37  
Old 05-03-2014, 07:11 PM
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Re: Strange over heating

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Originally Posted by Tapani View Post
The thermostat goes in the correct way only. It is possible to put the bleed nipple down, which is not correct. T
You think that could cause my problems?
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#1 1994 Ls ebony parts car-rip
#2 1994 L laguna blue - sold
#3 1992 Lsi pearl white - sold
#4 1992 Lsi pearl white -Ate two engines - Rip
#5 1994 L Laguna Blue fwd - Now Awd and manual - 03 wrx 5mt - 18's stern warp st4s - totaled hit a tree
#6 1992 Lsi custom orange parts car
#7 1992 Lsi green 4.44 swap. Currently for sale
#8 1992 Lsi custom pearl white. Project car... sold
#9 1992 Teal 4.44 swapped... sold
#10 1995 Laguna Blue. Sti 19 wheels,
#11 1994 Laguna Blue. Came with #10 engine and trans are out but plan to put it back on the road. Willing to sell it at any time! 😂
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  #38  
Old 05-03-2014, 08:16 PM
Tapani Tapani is offline
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Re: Strange over heating

No, I think you have a head gasket issue. T
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  #39  
Old 05-05-2014, 09:10 PM
Chucksta Chucksta is offline
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Re: Strange over heating

The bleeder nipple not being in the correct configuration ( up ) .. might make bleeding all the air out of the system problematic, or, impossible ( worst case ), but, it would not cause the system to not pull coolant back down from the reservoir. That issue speaks clearly to the system not being "sealed" or "closed", and therefore not creating the vaccuum necessary to pull coolant back into the system.

Also, your rad shop declared that the rad was plugged.. It's not possible that deposits were ONLY in the radiator.. scaling in the block / passages / heater core / etc., may be the point of localized boiling and restriction.. Hose connections ( though not commonly the cause ) can also be suspect... just because they don't leak under pressure, doesn't mean they don't leak under vaccuum.. Not common... but not impossible.. at a lower pressure level than the rad cap... And.. I hate to say it.. but I've seen threads where the problem was the cap.. it had to do with it's "ears" and how the hood closed.. seriously..
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  #40  
Old 05-08-2014, 01:58 PM
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Re: Strange over heating

Yeah headgasket. I did a coolant pressure test. Took it to 16lbs and with in a few min it had lost all it's pressure

Pm me if anyone has new Headgaskets or valve cover gaskets.

Thanks for all your guys input and help I appreciate it.
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#1 1994 Ls ebony parts car-rip
#2 1994 L laguna blue - sold
#3 1992 Lsi pearl white - sold
#4 1992 Lsi pearl white -Ate two engines - Rip
#5 1994 L Laguna Blue fwd - Now Awd and manual - 03 wrx 5mt - 18's stern warp st4s - totaled hit a tree
#6 1992 Lsi custom orange parts car
#7 1992 Lsi green 4.44 swap. Currently for sale
#8 1992 Lsi custom pearl white. Project car... sold
#9 1992 Teal 4.44 swapped... sold
#10 1995 Laguna Blue. Sti 19 wheels,
#11 1994 Laguna Blue. Came with #10 engine and trans are out but plan to put it back on the road. Willing to sell it at any time! 😂
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  #41  
Old 05-08-2014, 04:43 PM
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Re: Strange over heating

Quote:
Originally Posted by stiguy View Post
Yeah headgasket. I did a coolant pressure test. Took it to 16lbs and with in a few min it had lost all it's pressure

Pm me if anyone has new Headgaskets or valve cover gaskets.

Thanks for all your guys input and help I appreciate it.
Yes, I has new Subaru head gaskets.
And you can buy them.
Send me a PM.
Tom
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