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Old 07-22-2008, 03:26 PM   #1
RoboTakeover
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Default Ea82T with white smoke and Loss of Power

Hello, I own a 1987 GL10 EA82T. A month or so ago I pulled the turbo to replace the leaking coolant supply lines. Soon after I noticed a loss of power around 4000 RPMS. It would cut out. I changed the oil and it felt a little better. Yesterday I barely made it around the block back home. I have very little power and at idle it is just sputtering. White/ light gray smoke is coming out the tail pipe. When i popped the hood i had sprung a leak on another coolant line ,.. this one on the intake manifold. I replaced it,. but the symptoms still persist. What would be the the symptoms of a blown head gasket? Would faulty emmision control devises create these symptoms? I have another intake manifold fully assembled that I am thinking of installing. Thanks for any advise and related experiences.
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Old 07-22-2008, 11:25 PM   #2
Caboobaroo
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I'm going to guess either A) a blown headgasket on the passenger side B) a blown intake manifold gasket or C) a cracked head. All of which are very common on these cars, even if they've been overheated a little, they'll snap and TAH DAH, borked.

Best advice, don't drive it because it can cause more damage then its worth. Pull the motor, get new OEM headgaskets, remand heads off of ebay and a reseal kit (complete gasket kit). Tear it all down, spend some time putting new gaskets and such in and drop it back in. You can also do timing belts as well during this and possibly a new oilpump, waterpump and radiator depending on how far you really want to go.
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Old 07-23-2008, 01:50 AM   #3
TurboneX
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I dont think its a HG gone bad. You may have coolant in the intake from a bad gasket, which is pretty common.
Does it heat up? Are there bubbles in the recovery tank? Check for a excess amount of oil in the pan. If it looks like a milkshake, or the the other stuff I mentioned, then its a bad HG.
It might be a good idea to go ahead and change intakes, that way you can replace the gaskets. I've seen EA82T's smoke pretty good for a while because of coolant in the exhaust from a leak. It usually burns off after running for a little bit.
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Old 07-25-2008, 05:08 PM   #4
MilesFox
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is your car an automatic transmission, and if it is, is the vac modulator sucking up ATF?

one possible symptom for "grey smoke"
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Old 07-25-2008, 08:04 PM   #5
RoboTakeover
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It is a manual. I ran it for a bit and then checked the dip stick for milk shake like oil. There are tiny bubbles in the oil. So,... probably head gasket? Im going to do a compression test tomorrow. How difficult would it be to replace the gasket without pulling the engine.. Im not lazy ,..just working in a confined area without a garage.
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Old 07-26-2008, 12:20 AM   #6
TurboneX
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Just because it has bubbles in the oil doesnt mean a blown HG. Doing a compression test will help quite a bit.
Usually, doing a HG in the car can be a PITA. But its been done.
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Old 07-27-2008, 01:09 PM   #7
RoboTakeover
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I did the compression check and its pretty much 70 all the way around. I think right side closest to firewall was 60-65. Spark plugs were black but non oily. After i put the plugs back in and everything it didnt want to start. When I pulled the plugs inititailly one felt loose, but i havent been able to run it since to see if its any better. Ohh yeah one more thing ,.. on top of the block beneath the tire is a sensor of some sort,.. the plastic exterior of the wire leading to it had eroded in a section exposing some wire,.. I wrapped it in electrical tape and some heat resistant tape,. What sensor is this and would it contribute to any of my symptoms? Thanks for all the help ,.. cant wait to be driving my subaru again.
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Old 07-27-2008, 01:10 PM   #8
RoboTakeover
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wire felt loose ,. not plug
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Old 07-27-2008, 05:27 PM   #9
TurboneX
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Quote:
Originally Posted by RoboTakeover View Post
I did the compression check and its pretty much 70 all the way around. I think right side closest to firewall was 60-65. Spark plugs were black but non oily. After i put the plugs back in and everything it didnt want to start. When I pulled the plugs inititailly one felt loose, but i havent been able to run it since to see if its any better. Ohh yeah one more thing ,.. on top of the block beneath the tire is a sensor of some sort,.. the plastic exterior of the wire leading to it had eroded in a section exposing some wire,.. I wrapped it in electrical tape and some heat resistant tape,. What sensor is this and would it contribute to any of my symptoms? Thanks for all the help ,.. cant wait to be driving my subaru again.
Thats the knock sensor.
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Old 08-10-2008, 08:11 PM   #10
iluvdrt
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Do a pressure check on the cooling system to see if the intake gaskets are blown. If you start loosing pressure but dont see coolant dripping than it is probably a bad HG/cracked head.

As far as it not starting again, is the firing order correct after doing the compression check?
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