taking off valve cover tomorrow
#1
taking off valve cover tomorrow
well im taking off the valve cover tomorrow to see what ticking under there, got everything ready today, took apart and disconnected everything that needed to be, dont know why when i look at it it looks so hard, its pretty easy. got that stupid stainless line off on the turbo side, made my own make shift tool from a worm clamp, yup popped right off, may try it on the valve cover side as well see what it do. anyway will update on what i find.
#6
Senior Member
Sorry to let you down, Tom, but I don't really know the answer to that one. If it's your tensioner, it's really important not to run it like that. PM FasterisBetter. He just had this issue and can better answer your question.
#7
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Join Date: 05-15-10
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Yeah man. Your timing chain tensioner has probably blown the o-ring out of the tensioner or one of your guides is damaged, but I'd say that your tensioner is bad. They cost around $56 at the dealer and they actually have these in stock usually as all ecotecs in cobalts use the same tensioner.
#9
Senior Member
iTrader: (2)
the tensioner should be relatively tight but is driven from oil pressure..... however they do go bad from time to time and if you have bolt ons or more then stock power levels its always good to have a brand new spare floating around somewhere. if the cars not running it wont be super tight. but it shouldnt have a ton of play either.
cam journals i have seen. cam journals i notice when they are loose mostly happen on decel rather then accel.
cam journals i have seen. cam journals i notice when they are loose mostly happen on decel rather then accel.
#10
well idk other than the tensioner, everything else under the cover looks good. the tick comes pretty much from the timing chain area, the top guide looks fine, the bottom idk how to check that. chain has about almost an inch of play. which id think would be bad, but i dont know anything about timing chains, this is the first time iv opened a motor. do u just unscrew the tentioner? pull it out and check?
#17
oh and for those who say the hose on the turbo to the valve cover is the correct crank vent to put the catch can on, not true, it just goes into the valve cover venting in there, the on that doesnt go to the turbo goes straight down to the block, i looked, that is the correct one. but both can get oil threw em so technically should probably run 2 catch cans
#18
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oh and for those who say the hose on the turbo to the valve cover is the correct crank vent to put the catch can on, not true, it just goes into the valve cover venting in there, the on that doesnt go to the turbo goes straight down to the block, i looked, that is the correct one. but both can get oil threw em so technically should probably run 2 catch cans
#22
so then what? i start with the tentioner? when i take it apart again to change that ill make sure i take a good look and check torque on journey bolts. but for now ill order a tentioner. either way if its not that ill have one for spare. and dealer did have a look, dont think they looked at the chain, but they said everything else under there looked fine. they wanted to take the head off and look at my valves, but the meth kit made them not, cause they didnt want to void warrenty if they found the meth damaged valves, which is kinda gay cause alot of people run it without issue
#25
Senior Member
You're beyond my expertise right now. I have not dealt with the tensioner before. One member on here has been through 3 of them, but I can't remember who it was (Maybe Cuda Joe or cmiller). That's who you need to talk to if you can search and find it. Sometimes, the only way to tell if a part is bad is to pull it and check it, or just replace it.