How to Know if You Have Bad Turbo Seals Wrx

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Symptoms of bad valve seals/turbo seals/bad rings

• Thread starterhorizontalkev
• Get-go date Jan 17, 2014

• #ane

1,001

2

Jun 28, 2010

great bend, Kansas

What are the symptoms of
Bad valve seals
Bad turbo seals
Bad piston rings
Assume a leak down test is out of the question. What are the unique, detailed symptoms of the three problems? I feel this could help many people, and have information technology all in one place. Thanks

• #2

84

1

April 14, 2011

Oxnard, California

I'm guessing smoking would exist the obvious one...one tiny drop of oil in those cylinders would crusade a ton of fume

• #3

306

0

Feb 14, 2010

Boulder, Colorado

Valve seals will smoke on start up. Blue for oil.
Turbo seals volition dump oil through the IC pipe and blow blue fume after a boosted pull. Cheque for in and out shaft play.
Bad rings will crusade lower pinch and smoke blue nether deceleration.

• #iv

659

seven

Apr iii, 2013

Rohnert Park, California

Valve seals will smoke on start upwards. Blue for oil.
Turbo seals will dump oil through the IC pipage and blow blue fume later a boosted pull. Check for in and out shaft play.
Bad rings will cause lower compression and fume blue under deceleration.

isnt white smoke oil?

• #5

577

6

Dec 17, 2006

Las Vegas, Nevada

• Thread starter
• #6

ane,001

two

Jun 28, 2010

great bend, Kansas

What would foul spark plugs with what appears to be oily fuel every other day? Footling to no fume while running

• #7

167

four

Aug 24, 2008

Tarzana, California

I believe white smoke can as well be oil burning in the frazzle instead of the combustion bedchamber. It's a different white smoke from coolant called-for fume. There's too normal water condensation.

• Thread starter
• #8

1,001

2

Jun 28, 2010

great curve, Kansas

What does a small amount of abiding white/gray smoke at idle say? (not coolant)

Likewise, some white smoke tin can actually mean you're running rich

• #9

five,174

684

Jul 11, 2009

Some where in, Colorado

Oil could foul out the spark plugs by leaking upwards by the oil scrapper piston rings.

• Thread starter
• #x

1,001

ii

Jun 28, 2010

bang-up bend, Kansas

Update. All 4 pistons have black buildup on them. Number i cylinder, the cylinder summit is wet while cylinders 2-iv announced dry out.
Cylinder 1 piston

spark plug (all four are similar)

Cylinder two (3 & 4 are similar as this)

From this information what can we say is going on? The problem can't exist isolated to only 1 cylinder. Turbo seals?

• #xi

128

2

Dec 14, 2013

Tampa, Florida

From the looks of the cylinder pictures, to me information technology looks like there might be oil sitting on top of the piston in cylinder number one. The only logical way for oil to wet the tops like that would be valve seals. The blackness build up is nothing more than carbon build up.

Also, if you are getting a steady light stream of smoke at idle, I would focus on the turbo and check for excessive shaft play.

• #12

659

7

Apr 3, 2013

Rohnert Park, California

I believe white fume can also be oil called-for in the frazzle instead of the combustion sleeping room. It'southward a dissimilar white smoke from coolant burning smoke. There's also normal h2o condensation.

I concur, I had oil all in my frazzle and it was bravado white/gray smoke

• #13

169

1

December 1, 2012

Boston, Massachusetts

I recently had bad valve seals...The smoke was slightly thicker than what y'all would see coming out on a common cold and wet twenty-four hours on commencement upwards. It would fume on idle later on virtually ii mins and become away when driving. I'm trying to run into if i tin can discover some video

• Thread starter
• #14

one,001

2

Jun 28, 2010

great bend, Kansas

I recently had bad valve seals...The smoke was slightly thicker than what you would come across coming out on a cold and wet mean solar day on start up. It would smoke on idle later on virtually 2 mins and go away when driving. I'yard trying to see if i can discover some video

Did your leaky valve seals foul your spark plugs hands?

• #xv

ane,315

99

Apr eighteen, 2002

Edmond, Oklahoma

Bad valve seals...but pull the header (when car is common cold...duh) and look at your exhaust valves. Most likely you will come across them "moisture" and oil dripping down or signs it was. Should be very obvious. Bluish fume during idle especially right subsequently y'all start it upwards.

Oil control rings in that location will be excessive oil usage and the smoking specially during boost would be more dramatic than the valve seal situation. Also enough of blowby and the spark plugs would show intense carbonation equally in burnt oil buildup. Utilise a leakdown tester.

If it's a JB turbo especially....the amount of blue smoke volition exist intensive especially when boosting...and dropping the downpipe normally solves this mystery since at that place will exist signs of major oil burning there...more so than in the other 2 scenarios. Check for in and out and side to side play of the wheels and make sure your oil bleed is non restricted which would as well cause blue smoking.

Just my shotgun approach to diagnosing smoking bug.

White fume is normally coolant/water. Easier to exam this when it'south warm outside. In the winter, you can smell the sweetness scent of coolant coming out the tail pipe every bit a visual test is not a confirmatory test for coolant combustion.

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Source: https://www.dsmtuners.com/threads/symptoms-of-bad-valve-seals-turbo-seals-bad-rings.474639/

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