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Old 03-24-2004, 02:02 PM   #1
chubb
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Default Crush washer for oil change

I am about to change my oil and I am going to replace my crush washer. Can anyone tell me the size of the crush washer?
thanks
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Old 03-24-2004, 02:10 PM   #2
Uncle Scotty
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Subaru P/N: 11126AA000 Gasket

AFAIK...that's what you have to use...I don't think anybody has figgured out anything else.
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Old 03-24-2004, 02:33 PM   #3
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Don't forget flat side against the plug!
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Old 03-24-2004, 02:35 PM   #4
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Do i have to get this from a dealer?
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Old 03-24-2004, 02:36 PM   #5
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What is the diameter of that crush washer ... in case I wanted to buy it from a non-dealer?
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Old 03-24-2004, 02:39 PM   #6
merlot
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Quote:
Originally posted by chubb
What is the diameter of that crush washer ... in case I wanted to buy it from a non-dealer?
I've always gotton mine from the dealer. Never had the part number either, just told them the crush washer. Also, another dealer near my work usually threw in a crush washer with all their oil filters.... Nice idea.

You could always order them online from subaruparts.com or subaruwrxparts.com
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Old 03-24-2004, 02:43 PM   #7
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Quote:
Originally posted by chubb
What is the diameter of that crush washer ... in case I wanted to buy it from a non-dealer?

chubb.....this is a Subaru part....I don't think there is a substitute....if you find one, please post it.
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Old 03-24-2004, 11:03 PM   #8
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don't beleive i've have used one yet in the 35k miles that i have owned my car for. ymmv.
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Old 03-24-2004, 11:44 PM   #9
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Who needs a crush washer when you use a Fumoto?
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Old 03-25-2004, 01:12 PM   #10
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The crush washer is a nice safety, but if you ever take your car to the quick change places(or anywhere not a dealer) they're probably going to leave it off... not that you SHOULD, i"m just saying I don't think it's 100% necessary...
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Old 03-25-2004, 02:12 PM   #11
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A washer should always be used....even if it is RE-used...
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Old 03-25-2004, 02:27 PM   #12
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okay ... i just shelled out for a subaru washer / filter. Just curious about other alternatives and b/c I hate going to a dealership ... even if it's to pick up a filter.
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Old 03-25-2004, 03:34 PM   #13
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If you happen to be ordering other parts, www.thepartsbin.com

Part number 94109-20000 "Oil Drain Plug Gasket"

$.47 each.
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Old 03-25-2004, 10:15 PM   #14
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Outer diameter = 1.035 inches
Inner Diameter = 0.8 inches
Just measured with a caliper

I used a copper washer for either a Porsche or an Audi I had laying around (dealer 20 miles away) but the Inner diameter was a little big but worked fine. My dealer wants $1.20
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Old 03-25-2004, 10:33 PM   #15
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^
^
Amen
I've been using copper washers since my first oil change, when I found the OE crush one to be leaking already. I usually replace the copper washer at each oil change, I think I may have reused them once or twice. They have never leaked.
Oh, FWIW I have the gauge pack with the oil temp probe drain plug, if that makes any difference. It shouldn't, the seating surface of the plug against the pan/washer is the same.
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Old 03-26-2004, 01:41 PM   #16
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The inner diameter of the crush gasket is .75" according to Motormite catalog
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Old 03-27-2004, 12:11 PM   #17
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i have never used or reused the crush washer. i think i tossed it with my first oil change and i never did replace it. i have 33k on mycar and no leaks yet.
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Old 03-27-2004, 04:34 PM   #18
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Well Ricky.....I guess that's why there's usually at least 2 ways to do things...

If ya weren't supposed to use one, Subaru wouldn't have wasted the $$$ on putting one there.

I don't know about anybody else, but having all the oil leak out of my engine because I didn't use a washer is NOT the way I want to blow up MY motor....
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Old 03-28-2004, 09:43 AM   #19
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Used to run a maintenance shop. They make copper crush gaskets in that size available through a number of vendors.
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Old 03-30-2004, 01:18 PM   #20
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Every time I *don't* use one, I get leaks at the plug.

Strangely enough, when the dealer did an oil change recently (while doing the clutch shudder TSB), they didn't use one. It didn't leak, although I think a gorilla was running the wrenches that day.

So, this past weekend I'm thinking 'Hey, Subaru of Gwinnett didn't use one, so I should be safe, too.'

Wrong. Silver-dollar sized drippage after 8-10 hours. Ugh...off to order some. Did I mention the dealer kept my old one?

Scott
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Old 03-30-2004, 01:56 PM   #21
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hahaha, that is funny. a massive gushing oil leak that drains the crankcase so quick that i blow the motor. i haven't used the crush washer since day one. i have no leaks. not one drop.my car is always parked in the same spot so i would know. i check my oil weekly and it is always fine. did i tell anyone else to do it? no. i have changed the oil 12 times since i got the car and i just don't feel the need to use it. (i actually dropped it in the pan i was using at the first oil change and didn't feel like fishing it out) if it ever starts to leak, i'll get the washer and i'll let you know so you can laugh and gloat at me.
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Old 03-30-2004, 10:06 PM   #22
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why is there a crush washer there: to insure a seal.

why wouldn't it seal? maybe ur oil pan isn't truely flat causing a gap between the bottom of the head of the bolt and ur oil pan.

mine is flat appearently. if i develop a leak from there i will go to a crush washer.
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Old 04-01-2004, 06:10 PM   #23
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Quote:
why wouldn't it seal? maybe ur oil pan isn't truely flat causing a gap between the bottom of the head of the bolt and ur oil pan.
Yes, the crush washer wouldn't be needed between two perfectly flat surfaces, but it will make a seal by deforming under a relatively low load when the surfaces are not perfectly flat. Without the washer, you may be tempted to overtighten the bolt if there is a small leak. Think of it as very cheap insurance against a leak or a stripped pan/bolt.
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Old 04-01-2004, 07:14 PM   #24
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i just ordered a fumoto valve. what a neat little gadget.
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Old 04-02-2004, 07:18 PM   #25
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I use them,

One of my visits to the dealer many months ago, I just picked up like 4 from them, don't recall what they cost..

This last oil change, I picked up a gasket from CarQuest
I picked up 2, as wasn't positive about the size, think that the one that fit was 20mm?

both together maybe was $0.60?

The one time that I didn't use one, had a small slow drip, drove me nuts!!
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