LacyTheLegend

blown head gasket...faq has all the lingo posted

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Dethred

Oil will not cause overheating. Blown headgaskets rarely happen on our car. "bad" head gaskets do. Blown head gaskets usually imply a catastrophic break in the gasket causing oil leaks, or coolant leaks to a point where the car won't run for long. Our cars develop small cracks that leak in air over time causing slight overheating, eventually it will turn into a major problem if it is not repaired.

LUXURIOUS ASSASIN

that's probbably why it did not show up on the test then. damn!
anybody think it's worth fixing the gasket or would it be better ( cheaper ) to get another engine??

Dethred

Another engine.

Maggiemay

I will try to change the thermosat, and see if that helps. When i bled out the air, the heat did work right away but not for long. I also have to keep adding antifreeze, but i dont seem to have a leak. Am i in the BHG catagory? How much does it cost for new head gaskets?

Dethred

Sounds like it. If you keep losing antifreeze and don't have any leaks its probably the gasket, although its possible you've got a small leak that steams off before it hits the ground.

Merlin the Wrench

There are many posts re BHG, as well as complaints. Generally BHG's fall into several causes:
(1) Too little or wrong anti-freeze and electrolysis eats away aluminum.
(2) Too much anti-freeze. When the ratio exceeds 50/50, the engine runs hotter as anti-freeze conducts heat poorer than water. Use a antifreeze % gauge to test the ratio.
(3) Almost all Legends get bad radiators. The top cracks. There was once a recall on the tops. When the radiator cracks, the fluid gets low and that causes the heads to overheat. Overheated aluminum gets soft and warps.
(4) Improper bleeding of air after filling the radiator.
(5) inadequate checking. Once a month at least a Legend owner should inspect when the car is cold for remains of anti-freeze, level in the radiator, catch bottle etc.
(6) Radiator cap can fail and not pull in fluid to replinish what boils off into catch bottle.
(7) Using water with too many minerals in it. When in doubt use distilled water 50% and Honda anti-freeze 50%. If distilled isn't available, use purified with minimal minerals. Don't use tap water unless you come from a part of the world where the water has almost no minerals.

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Steve

david7700

My BHG was caused by improper bleeding of the engine cooling system. If air gets into the coolant, and the needle starts to rise, **immediately** turn the car off. If you let it overheat past a certain point for some time, the head gasket will go bad!! it sucks!!

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Legend .. what!

LUXURIOUS ASSASIN

does anyone think my A/C not working right has anything to do with a bad head gasket?? it usualy work if im like a highway for a while.

d!zbm!k3

this morning after i had warm-up my car my car started to rev itslef for 1000rpm to 1500 rpm then back down then back up i didnt know what was wrong and now my rpm idles at 1000 does anyone know what wrong with it thank?

wheazy

my 94 Legend pushes coolant from the radiator to the resvoir. the needle stays a tick or two below middle line. the ilde is about 100 - 150 lower than where it should be. no white smoke, black oil, not losing coolant. radiator is new. so is upper and lower hose. I have had this exact situation for about 7 months. I have driven it on 2 five hour trips. BHG? Something else? ideas?

update: compression test is proper ...

thermostat? water pump?

maybe some air in the system, but where would it be coming from?

Maggiemay

Mine does that too when the air is cold until the car warms up....i don't know why, but it doesn't seem to hurt anything.

Dethred

If the idle is surging you most likely have air in your system, and a lot of it.

d!zbm!k3

but mines did it even after i warmes up my car...

Cole Austin

you have air in the cooling system. You have to bleed it out using the air bleed vavle located near the upper radiator hose (where it connects to the engine). The proper bleeding techniques should be in the FAQ.

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