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post #1 of 11 (permalink) Old 02-07-2010, 03:09 PM Thread Starter
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06 Cobalt Oil Leak

I have had two oil leaks in the past 3 months, both of them resulting from cracked O-rings in the oil filter cap, i know the oil is not overfilled because i have done my last two oil changes and have ensured all oil is drained out before I refill with the manufacturers reccomended amount. However the oil change done before these two was done at an auto shop, and when i did my first oil change I noticed that they overfilled the oil by about a quart, i'm not sure if this caused any damage. Also both times the O-rings cracked its been below freezing and snowing with high winds. Anyone got any advice to why they keep breaking???

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post #2 of 11 (permalink) Old 02-07-2010, 03:12 PM
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Maybe...over-tightening




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post #3 of 11 (permalink) Old 02-07-2010, 03:52 PM Thread Starter
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possibly . . . anyone else had these problems?
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post #4 of 11 (permalink) Old 02-07-2010, 03:59 PM
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i never had MY car leak... but ehrn i was 16 i worked for a jiffy lube.. i NEVER changed the o rings on the cartrage filters.. when i started workin for chevy last year i was in a rush one day and didnt change on.. the car came back 4 days latrer PISSING oil outta the houseing...

u should always change that oring i learned my lesson



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post #5 of 11 (permalink) Old 02-07-2010, 04:21 PM Thread Starter
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Originally Posted by BlakdOut07LT View Post
i never had MY car leak... but ehrn i was 16 i worked for a jiffy lube.. i NEVER changed the o rings on the cartrage filters.. when i started workin for chevy last year i was in a rush one day and didnt change on.. the car came back 4 days latrer PISSING oil outta the houseing...

u should always change that oring i learned my lesson
The thing i dont get is that the oring has been replaced with my oil changes and still ive had 2 crack, its just strange . . .
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post #6 of 11 (permalink) Old 02-07-2010, 06:55 PM Thread Starter
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Think ive figured it out, could it be that since i never lubed the oring before installation it dried out, or perhaps its just not giving it the best seal it could
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post #7 of 11 (permalink) Old 02-08-2010, 10:55 AM
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you always lube the oring before putting the cap on... its in the instructions.
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post #8 of 11 (permalink) Old 02-08-2010, 12:38 PM
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You can reuse the rings a few times, just dont overtighten them. Always lubricate a new ring. Never over tighten the cap because the ring is doing all the sealing work.

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post #9 of 11 (permalink) Old 02-08-2010, 03:09 PM
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the new filter is supposed to contain a new ring! its there for a reason!! And YES please lube the ring!! to prevent it drying and cracking and causing the exact problems discussed here.
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post #10 of 11 (permalink) Old 02-09-2010, 09:06 AM
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also, where are you putting the new o ring? the original o ring is kinda hard to spot if you haven't done it before being it is the same color and almost feel of the oil filter cap... there is a groove it goes in but you gotta pull the old one out with a flat head screw driver or a knife. then lube up the new one and put it in that groove. if it isn't in the groove, the stresses will make it crack.
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