Overheating, First thing to do... try the HG Test.....

[nsm484]

Edit: Go to the last page for latest



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hg-test.wmv - 5.68 MB. This is 2 videos I made while doing my HG test... Combined into one file.

My test drive to get her warm was a mere 1.9 miles (my "test drive" route)
First leg is a 4 lane with Turning lane, 40mph speed limit, but at 3am at night, I go alittle faster. Second leg is Residential, 30 - 35mph. One big circle

by the time I was less then a few blocks from the house, my temp was reading dead center.

Once I got home, I took a towel and removed the Rad Cap. I am glad I got a towel and not just a small rag

Anyway, I tried filling it up with water, but I had the water pressure from the hose too high, and it just made it go everywhere (which is why at one point in the video, you hear the belt squeak)

After that, I lowered the pressure on my water hose to a trickle, refilled, and did the first test video.

then, turn the car off, refilled (which didn't take much) and did the 2nd test video.

Tell me what you think.... I feel its the HG, but maybe I am wrong? (that would be nice)

Also... if it is the HG... I will be doing it myself. However, It will be the first time I've done any major work to an engine. I will plan to set aside 2 full days (which is all I can get in a row) to do this.

is there a good how-to out there? Do I have to pull the engine out or can I do this with the engine in?

Just point me into the right direction... as I wont let something as small as a Gasket let Calista go down!

[Hocrest]

From the video, i have no idea if it's the HG's. When you rev the engine, the waterpump spins faster and will cause an open radiator to spurt.

Does it overheat? Do you need to add coolant? What other sympoms are there??

If you're going to do the HG, pull the engine. It can come out in under 2 hours.

[dannmarr]

For safety, you should NEVER open the radiator cap when it is hot!

[SoCal LS-L]

Before you do anything crazy, go rent or buy a block tester kit. It consists of a hollow tube with a coned rubber plug you stick on top of your radiator cap hole, fill with this blue fluid, and run the engine watching for a change in the fluid color. If it turns yellow, bam, its a HG. Makes diagnosis way easier.

[Wikedjuggalo]

Originally Posted by SoCal LS-L

Before you do anything crazy, go rent or buy a block tester kit. It consists of a hollow tube with a coned rubber plug you stick on top of your radiator cap hole, fill with this blue fluid, and run the engine watching for a change in the fluid color. If it turns yellow, bam, its a HG. Makes diagnosis way easier.

These do not work well on our engines. Ask YT why but if I recall its mainly from how our HG leak.

[SoCal LS-L]

Post #4

Originally Posted by SoCal LS-L

Before you do anything crazy, go rent or buy a block tester kit. It consists of a hollow tube with a coned rubber plug you stick on top of your radiator cap hole, fill with this blue fluid, and run the engine watching for a change in the fluid color. If it turns yellow, bam, its a HG. Makes diagnosis way easier.

This is really worth a shot to try, may save you a LOT of work.

[nsm484]

I have a block tester, tried it a few times.... which I belive I posted before in this thread, Also, the day I parked her, out of no where she starting running oddly. I can't describe it as its been months since I've drivin her, but after that happened, after all the problems, and doing the block tester a few times which both came yellow within the 2nd pump of the tester.

Edit: I did post earlier in this tread about my block test... 2nd page:

Originally Posted by nsm484

Also, just to update... I did buy a Block Tester. I Syphoned my fluid out of the rad. just enough to make sure it didn't get sucked into the tester.
I did the test 3 times, going nice and easy on the ball as to not suck in air too fast, And each time... It changed to yellow fairly quickly.

[nsm484]

Originally Posted by Hocrest

From the video, i have no idea if it's the HG's. When you rev the engine, the waterpump spins faster and will cause an open radiator to spurt.

Does it overheat? Do you need to add coolant? What other sympoms are there??

If you're going to do the HG, pull the engine. It can come out in under 2 hours.

Its starting to get hot even comming to work (3/4 or higher on a 15 min drive) however the other day when I was geting my running done.... She was steady on the hot line... Then on the last 3 miles heading home she was in the red.... Then once I stoped at the house she droped back to the hot line before the red.... And I had alot of bubbling in the overflow tank.

Calista is my current daily driver.. So if you need any more info I will provide it when I get home (on break typing from my iPhone)

[Wikedjuggalo]

Originally Posted by nsm484

Its starting to get hot even comming to work (3/4 or higher on a 15 min drive) however the other day when I was geting my running done.... She was steady on the hot line... Then on the last 3 miles heading home she was in the red.... Then once I stoped at the house she droped back to the hot line before the red.... And I had alot of bubbling in the overflow tank.

Calista is my current daily driver.. So if you need any more info I will provide it when I get home (on break typing from my iPhone)

I don't want to be the one to tell you the bad news ; ;...

[TomsSVX]

Originally Posted by Wikedjuggalo

I don't want to be the one to tell you the bad news ; ;...

So I will. Your headgaskets are leaking and you need to replace them

Tom

[SoCal LS-L]

Originally Posted by TomsSVX

So I will. Your headgaskets are leaking and you need to replace them

Tom

Couldnt a bad thermostat cause the same symptoms?? Id at least have him try that since its cheap and easy before sending him to the executioners block yanking his engine....... When mine overheated from the bad WP, I went into the red and was boiling into my reservoir as well, but my HG are fine, zero issues after i did my plugs.

I mean, unless you WANT to yank your entire engine to reseal it or something.