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Old 07-20-2012, 06:51 PM   #1
Rizzo226
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Default 1998 Legacy GT might be burning oil

i have a 98 legacy gt 5 speed with 141k on it. the head haskets were done at 126 and there are no drivibility issues with the engine at all. If im driving normal when i pull into my garage and open the hood there is a slight smell of burnt oil. The other day i was beating on the car and when i got to my friends driveway and opened the hood the smell of burnt oil was present and there was a little white smoke coming from the back left of the engine. Anyone have any thoughts?
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Old 07-20-2012, 06:53 PM   #2
Wiscon_Mark
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A noticeable smell of burnt oil usually means some is externally leaking onto the exhaust.
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Old 07-21-2012, 04:35 PM   #3
Mark Garcia
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I have a 92 legacy L I had to do my rear main seal on mine and an oil block off plate rite next to it. Was not fun. Look at your cross member and see if there is any oil on it and your cat as well. If so then chances are that might be your problem. Hate to be the one to tell you that news.
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Old 07-21-2012, 06:04 PM   #4
Rizzo226
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How much was the rear main seal and oil block off plate? There is alot of build up of sludgy oil underneath the car around the oil pan and around the underside and back of the engine as well. I need to add about 2/3 of a quart of oil about every 700 to 800 miles
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Old 07-21-2012, 08:52 PM   #5
Mark Garcia
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I spent less than 150$ for everything. Also everything was from a Subaru dealer.
9 quarts of factory ATF 73$
1 rear main seal 13$
1 oil block plate 37$
5 new bolts for oil plate 4$
1 quart of gear oil for front diff 5$ ( at part store )
Some thing like that for me. Give or take on prices for everything.

Also I forgot to ask how about your oil pan did you check that? If it is that look up beergarage.com and look up Subaru oil pan.
It tells you how to do it easyer with out having to drop your subframe.

I live in Cali idk what the prices are out where you live. Sooooo that being said prices may very for you if your not in Cali.
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Old 07-22-2012, 08:20 PM   #6
RexyGirl
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Sounds like you might have a CV boot leaking onto the exhaust. Smells a little like burnt rubber.
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Old 07-22-2012, 10:01 PM   #7
Rizzo226
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My oil pan was leaking a litte due to rust and corrosion but some jb weld material over it to block it and it doesnt leak anymore...but i dont think that would cause the motor to be burning oil
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Old 07-23-2012, 12:05 AM   #8
Mark Garcia
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If its burning then your rings are bad.
Uhmmmm not to sound like an ******* but what does cv's have to do with oil lol
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Old 07-23-2012, 12:54 PM   #9
ElTauro
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Since you asked...CV axle boots contain grease. If the boot ruptures/tears, then it will sling the grease all over the place. If it gets onto a hot part, like a catalytic converter, then it will bake, cause smoke, and smell. Grease, like oil, is a petroleum-based substance.

Rizzo, it doesn't sound like your car is burning oil internally, especially if you're not getting smoke out of the exhaust pipe. Is it for sure motor oil that is being burned on a hot part under your car? Could be rear main, valve cover gasket, etc, if it's motor oil. I recently replaced my entire steering rack due to it hemorrhaging PS fluid all over the main cat. Lots of fun smoke and burning smells.

I guess look under it, and see if you can locate a leak source.
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Old 07-24-2012, 11:12 AM   #10
andrewmsprague
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One of my CV joint boots is torn and could be slinging grease onto my engine. For the longest time I thought the engine was leaking oil, but when I did a thorough inspection of the motor I found that it wasn't leaking at all :P
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Old 07-24-2012, 07:31 PM   #11
Rizzo226
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My front left cv boot has a tear in it but i know for a fact oil is dripping onto the paper i have in my garage...i covered up some rust on my oil pan and i think it looks like its starting to leak through again so im gunna order a new oil pan and pput it on and see if the oil level on my dip stick stays at a constant level
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Old 07-24-2012, 09:19 PM   #12
RexyGirl
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Quote:
Originally Posted by Rizzo226 View Post
My front left cv boot has a tear in it but i know for a fact oil is dripping onto the paper i have in my garage...i covered up some rust on my oil pan and i think it looks like its starting to leak through again so im gunna order a new oil pan and pput it on and see if the oil level on my dip stick stays at a constant level
The best thing to do is to clean up as much oil as you can and put some oil dye in the oil to show exactly where it is coming from. (brake clean works fine to clean the oil and the grease from the boot).

When CV boot grease gets worn out, it gets thinner, so make sure that it is really oil leaking and not grease from the boot.
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Old 07-25-2012, 05:21 PM   #13
Mark Garcia
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That's a good thought on using the dye!!!! Hopefully you don't have to do all that work!!! It sucks @ss! Lol well good luck with it all!
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Old 10-09-2012, 11:04 PM   #14
jkaic
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OP, is it still burning smoke? I've had a problem similar to that, except it was tranny oil that was leaking onto the cat converter and smelled like hot asphalt on long trips. Turns out it was the seal inside the transmission that was leaking, and the cheapest solution was a tranny swap. Hope it's not that but see if it's really engine oil or gear oil.. that might narrow it down for ya!
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