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Old 11-27-2004, 03:15 PM   #1
kevinsUBARU
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Default 95 Impreza: Front Differential Drain Plug/Washer question

Is a crush washer used on the front differential of an automatic tranny (1995) Impreza? Owners manual says yes, ScoobyMods says nothing, Chiltons says nothing, and I found an old thread re: 2000 Outback that said no crush washer was present.

If I need one, what size? I don't want to drain it only to find out anything that I put in is just going to come back out. Thanks for the quick help!

Kevin
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Last edited by kevinsUBARU; 11-27-2004 at 03:21 PM.
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Old 11-28-2004, 10:58 PM   #2
vrg3
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I'm not positive, but I believe you'll find a 26mm aluminum crush washer down there. The replacement part is now copper.

You can actually reuse aluminum or copper crush washers a few times if you reanneal them -- heat them up with a torch until they glow, and then quench them in water.
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Old 11-30-2004, 02:21 PM   #3
ImprezaVA
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I don't recall a crush washer being on my front diff. drain plug. It doesn't leak either. Wouldn't hurt to have one though.
-Charles-
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Old 11-30-2004, 06:02 PM   #4
North Ursalia
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It does take one- part number is 803926070.


Brian

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Old 12-01-2004, 03:02 PM   #5
Hayes
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Anneal them by heating to a red glow and SLOWLY cool them. ed
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Old 12-01-2004, 03:05 PM   #6
vrg3
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You don't need pay any special attention to how quickly you cool it. Unless you're dunking it in liquid nitrogen, you won't cool it fast enough to harden it. I know that's true for copper, anyway.

Quenching helps keep the surface from oxidizing up, which is why I prefer it.
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Old 12-09-2004, 04:46 PM   #7
TheJonesBoy
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>Anneal them by heating to a red glow and SLOWLY cool them. ed

Ummm. Only with the copper. If your aluminum is glowing its on fire.

Copper should be brought to a glow, held there for a little, and air cooled to prevent precipitate hardening. Aluminum should be made hot (but not melting, very hard to judge) and water quenched. For our purposes, the quenching REALLY doesn't matter.
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