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Old 11-05-2005, 07:36 AM   #1
Acadian
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Default Leaky oil crush washer

Have you ever experienced a leaky crush washer?

This past Monday I did an oil change on my car Ė yesterday I crawled underneath to make sure my filter wasnít leaking, this after reading all the treads about the defective new oil filters F08, F09 and F10 (mine was a F05).

Like I do at all my oil changes, I used a brand new crush washer Ė but noticed a minute oil leak. Itís not leaving a puddle on the ground, but I can see a little bit of seepage around the nut.

Any of you ever experienced this? Should I change it or should I be fine until the next oil change?
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Old 11-05-2005, 08:20 AM   #2
Hayes
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Make sure it torqued to the correct value (32 ft/lbs I think) and live with it till the next oil change. Are we sure you removed the old one first?

Last edited by Hayes; 11-05-2005 at 08:21 AM. Reason: thought
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Old 11-05-2005, 12:16 PM   #3
Master2192
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Torque it down alittle more and replace it next oil change. I get to do the same thing but i'll probably change my oil sooner because of it.
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Old 11-05-2005, 03:06 PM   #4
Acadian
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Well I'm going to a local Subaru Tuner on the 17th for my 60k service...so I'm sure I'll be fine till then.

my car has 62,000 miles and I did all my oil changes yeah I'm sure I took the old one off and it's in the right position (e.g. Flat portion towards the head of the plug).

Maybe it was still dirty when I put the new crush washer on...oh well. I'm sure I'll be fine.

thanks guys!
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Old 11-05-2005, 03:14 PM   #5
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Mine was leaking the first time I went to change the oil when the car was new. Might have been due to the fact that I have the oil temp gauge and they may have re-used the washer when the drain plug/probe was installed at the port or dealer. But no matter, right then I decided to forget about the crush washers and use solid copper ones instead. 75K later, I've never had one of those leak. I usually replace them at every change but have re-used them a couple of times with no problems.
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Old 11-07-2005, 09:16 PM   #6
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Quote:
Originally Posted by Acadian
Like I do at all my oil changes, I used a brand new crush washer Ė but noticed a minute oil leak. Itís not leaving a puddle on the ground, but I can see a little bit of seepage around the nut.
Are you sure it is seepage or could it just be a little of the old oil you forgot to wipe away after you changed the oil?
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Old 11-08-2005, 09:50 AM   #7
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Quote:
Originally Posted by Samurai Jack
Are you sure it is seepage or could it just be a little of the old oil you forgot to wipe away after you changed the oil?
Been checking it daily - it's definitely a leak.
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Old 11-08-2005, 10:18 AM   #8
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33ft/lbs is very little torque. If it's overtorqued the fragile washer can easily offset and squeeze out a bit. And if it's overtorqued, torquing it more will not help, and could make it worse.
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Old 11-08-2005, 10:22 AM   #9
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If you put the crush washer on backwards it will leak. The flat part should be against the oil pan and the round (crush) part against the bolt. The first oil change I got I did at the dealer and they put the crush washer in backwards (although I did not realize it at the time). I put it in backwards myself later on, which is when I realized which way to put it on. If it is bad enough, change your oil and put the new crush washer on correctly, if not, just wipe it as needed and fix it on the next oil change. And yes, if the bolt is not torqued to the right value the crush washer might leak even if it is installed correctly.
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Old 11-08-2005, 12:11 PM   #10
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Quote:
If you put the crush washer on backwards it will leak. The flat part should be against the oil pan and the round (crush) part against the bolt.
OK, so you post information that directly contridicts conventional wisdom, all known writings on the subject and recommendations from Subaru themselves. PLEASE tell us that you're not basing that pile of poo solely on the recommendation of some 80 IQ grease monkey at your local Subaru dealer.

if you have good data, please post it. Otherwise, have some consideration for the noob doing his first oil change who might read your post and think it was accurate.
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Old 11-08-2005, 12:47 PM   #11
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Quote:
Originally Posted by jebjkey
The flat part should be against the oil pan and the round (crush) part against the bolt.
I would rethink that statement
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Old 11-08-2005, 04:14 PM   #12
Acadian
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Quote:
Originally Posted by Jon Bogert
OK, so you post information that directly contridicts conventional wisdom, all known writings on the subject and recommendations from Subaru themselves. PLEASE tell us that you're not basing that pile of poo solely on the recommendation of some 80 IQ grease monkey at your local Subaru dealer.

if you have good data, please post it. Otherwise, have some consideration for the noob doing his first oil change who might read your post and think it was accurate.
no kidding.....I would hate to be a newb reading his post!

yeah maybe I over torqued it... either that or some grit got lodged between the crush washer and the bolt and/or the oil pan.

Either way, Iím just going to keep a close eye on it until and maybe add a bit of oil until the 17th - at which time Iím bringing my car in to a local tuner for her 60k service.

I think this was a good exercise Ė why? Well usually I never pay attention to the bolt after doing oil changes. I typically do my oil change, run a car for a bit and look under to make sure everything is peachy then assumed all was fine! I never inspected the filter/bolt the next day. Iíll be doing this from now on to make sure there arenít any slow leaks like these Ė AND Iím going to have to stop being a torque monkey
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Old 11-10-2005, 05:59 AM   #13
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well I got paranoid and went ahead and changed my oil again and replaced the washer.

Guess I had over torqued it
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