Problems/Service/Maintenance Do you have problems with your new 2.0, 2.2, or 2.4L? What kind of service did you have done?

oil on pistons

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Old Dec 12, 2010 | 09:48 PM
  #26  
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Originally Posted by Chevycobaltss3
compression check will test out how much pressure is inside the cylinder but will not test how long its there, so check it by doing a leakdown test.... if there is no oil in any piping then 1 its not the turbo unless the turbo is spooling to much boost for the engine and will cause alot of blowby, but as stated before theres no oil in piping, so either valve stem seals or ringlands. in between the sleeves is coolant so we know its not the sleeve.
but for all four ringlands to go bad at once?
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Old Dec 12, 2010 | 09:51 PM
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From: Vine Grove Kentucky
also let the car idle for a hour lol, turn the car off and verify no oil is in the cylinders. then do this take all plugs out take the harness off coil packs and injectors off as well and crank it. Dont forget to put a towel over the cylinders. if it gets oil in it doing this with no compression i can only see the rings being bad. If the valve stems are missing itll smoke all the time and if they were bad and not missing itll smoke all the time as well just not bad. rings were bad itll smoke at a high rev but at idle lower oil pressure and the oil spitters underneath the pistons arenet shooting oil as fast.
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Old Dec 12, 2010 | 09:54 PM
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you think my oil return coming back into the oil cap on my valve cover has to do anything with the problem?this is my motor
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Old Dec 12, 2010 | 09:54 PM
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thats what gets me about ure motor. all four shouldnt go out all the same time unless you didnt have the crank balanced and or you put the rings in the incorrect spots. also only do compression test via dry test, meaning no oil in cylinder, with the oil in the cylinder itll cause the compression to go up since the seals good lol
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Old Dec 12, 2010 | 09:55 PM
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From: Vine Grove Kentucky
hey ill trae you my 09 tc with full bolt ons and new tranny and lowered and tuned by me, and ill fix your car myself lol. jk
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Old Dec 12, 2010 | 09:57 PM
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Originally Posted by Chevycobaltss3
also let the car idle for a hour lol, turn the car off and verify no oil is in the cylinders. then do this take all plugs out take the harness off coil packs and injectors off as well and crank it. Dont forget to put a towel over the cylinders. if it gets oil in it doing this with no compression i can only see the rings being bad. If the valve stems are missing itll smoke all the time and if they were bad and not missing itll smoke all the time as well just not bad. rings were bad itll smoke at a high rev but at idle lower oil pressure and the oil spitters underneath the pistons arenet shooting oil as fast.
i did spin the motor with out plugs and oil didnt come out, its not a big amount of oil there just wet and its not a crazy amount of smoke either but it smoke that you can tell its there
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Old Dec 12, 2010 | 09:57 PM
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From: Vine Grove Kentucky
the only problem that would cause would be the heat from your turbo making the stem seals flex when heated to a over temp and crack when cool. if the tems get hot enough.,
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Old Dec 12, 2010 | 09:59 PM
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From: Vine Grove Kentucky
rings would make ure motor full of oil, stem seals. check them take the valve cover off get a spring compressor wthe the piston up inthat cylinder and check the stem seals
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Old Dec 12, 2010 | 10:21 PM
  #34  
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From: miami
Originally Posted by Chevycobaltss3
rings would make ure motor full of oil, stem seals. check them take the valve cover off get a spring compressor wthe the piston up inthat cylinder and check the stem seals
i was thinking valve seals but dam for a bunch of them to go bad to get oil on all the pistons
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Old Dec 12, 2010 | 10:26 PM
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From: Vine Grove Kentucky
really the only thing you can do is check. i know its wierd but i seen it once in a 22re 1985 celica. all valve stem seals shot up because they werent installed correctly
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Old Dec 12, 2010 | 10:31 PM
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Originally Posted by Chevycobaltss3
really the only thing you can do is check. i know its wierd but i seen it once in a 22re 1985 celica. all valve stem seals shot up because they werent installed correctly

so what do i do to check them?
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Old Dec 12, 2010 | 10:33 PM
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Originally Posted by Chevycobaltss3
really the only thing you can do is check. i know its wierd but i seen it once in a 22re 1985 celica. all valve stem seals shot up because they werent installed correctly
let me ask you something, you know how theres vents that go from the valve cover to the head and idk where those vents in the head go to, is there anyway threw those vents that oil can get to the cylinders because of the turbo oil return line on the oil cap
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Old Dec 12, 2010 | 10:39 PM
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From: Vine Grove Kentucky
the vents are routed like a v they are like runoffs sorta they route to the pcv system and about the oil return, ive always thought that was a stpuid idea because of heat and because of the oil sump system..................... i just dont get why all 4 cylinders............... do a leak down test you will find your issue...
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Old Dec 12, 2010 | 10:41 PM
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From: Vine Grove Kentucky
when u take your spark plugs out is the oil on top of the spark plug or just in the cylinder, meaning only on the electrode and the ground strap. another thing that could have happened was you have a lean spot and blew al the rings from the heat
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Old Dec 12, 2010 | 10:47 PM
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what crankcase breather mods do you have? usually people use the filler cap to vent air not to plum the oil back into the motor
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Old Dec 12, 2010 | 10:48 PM
  #41  
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From: miami
Originally Posted by Chevycobaltss3
when u take your spark plugs out is the oil on top of the spark plug or just in the cylinder, meaning only on the electrode and the ground strap. another thing that could have happened was you have a lean spot and blew al the rings from the heat
i dont have a pcv valve?

theres only oil on the top of all four pistons and the plugs are dry oil free
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Old Dec 12, 2010 | 10:50 PM
  #42  
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Originally Posted by elecblue06
what crankcase breather mods do you have? usually people use the filler cap to vent air not to plum the oil back into the motor
i have the stock breather hole on the back of the valve cover and another hole was made and i put a oil catch can breather
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Old Dec 12, 2010 | 10:54 PM
  #43  
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k, i know you dont have a pcv valve lol ive had a lsj ss, but to me u need to do a dry compression tests. but tell me this when you first start your car in the morning does your car smoke heavily or no if not the seals wont be bad, becaise if the seal is bad then the oil will seep into the cylinder more when the car is turnbed off,
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Old Dec 12, 2010 | 10:56 PM
  #44  
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From: miami
Originally Posted by Chevycobaltss3
k, i know you dont have a pcv valve lol ive had a lsj ss, but to me u need to do a dry compression tests. but tell me this when you first start your car in the morning does your car smoke heavily or no if not the seals wont be bad, becaise if the seal is bad then the oil will seep into the cylinder more when the car is turnbed off,
when i first turn it on in the mornings a cloud of smoke comes out not that big and thats it until i tap the throttle again
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Old Dec 12, 2010 | 11:01 PM
  #45  
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From: Vine Grove Kentucky
bro its hard to tell, leave your car running for the long period you said, then make sure no oil is in the cylinder once the car is off, then leave it off for about 10+ hours, start the car, if it smokes valve seals are bad, this is the easiest way to check stem seals. Piston rings will let more oil pass by as with more rpms because less compression but more oils pressure.
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Old Dec 12, 2010 | 11:30 PM
  #46  
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Originally Posted by Chevycobaltss3
really the only thing you can do is check. i know its wierd but i seen it once in a 22re 1985 celica. all valve stem seals shot up because they werent installed correctly
id bet a dollar that's the problem, I've read this several times now, wasn't planning to respond since I am not a fan of the oil return location, why you'd want to return hot oil to the top of the motor is beyond me.

Anyways, I'd almost certainly bet the valve stem seals were installed incorrectly.
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Old Dec 12, 2010 | 11:34 PM
  #47  
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From: Vine Grove Kentucky
Yep as a diag tech its hard to figure it out over the internet lol but id say the stem seals are bad.
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Old Dec 12, 2010 | 11:48 PM
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This is gonna sound dumb but what oil did you use to break in the motor?? If you read the total seal te h page they say not to use synthetic oil for break in due to lack of piston ring seating... I have a buddy of mine that built a camaro and he has very similar probe cuz he used mobile one as break in oil... Also those gt35r is known for oil consumption... I have a friend who put 2 on his skittle and they smoked... Went back to a forgot what turbo, prob gone... Who did your machine work? I highly recommend Phil and Richard at south florida machine shop... Great guys.... And blazin what happened with the coilovers?
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Old Dec 12, 2010 | 11:59 PM
  #49  
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Originally Posted by Chevycobaltss3
Yep as a diag tech its hard to figure it out over the internet lol but id say the stem seals are bad.
can the seals be changed with out taking the head off?
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Old Dec 13, 2010 | 12:14 AM
  #50  
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From: Vine Grove Kentucky
Yes but u have to do one cylinder at. A time.
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