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Old 11-05-2001, 08:47 PM   #1
po1010
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Unhappy remove transmission oil

Does anyone know how to remove transmission oil and rear differental oil. Last night I really could not find the transmission oil cap. Does anyone has pic.
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Old 11-05-2001, 08:51 PM   #2
tmat3
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I have an instruction for MY01 RS.

http://www.geocities.com/matsut_rpi00

Then click on "Maintenance".
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Old 11-05-2001, 11:09 PM   #3
STORER
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Since that link isn't working I'll describe how to do this.

Rear Differential
1. take a 1/2" drive rachet and remove lower plug on back of rear differential.
2. While the fluid is draining into a container wipe the swarf off of the magnetic drain plug.
3. Install drain plug.
4. Remove top plug and fill rear differential with specified fluid until it leaks out of fill hole.
5. Install fill plug.

Manual Transmission/Front/Center Differential
1. Take a 1/2" drive rachet with an extension bar and a 21mm socket and remove drain plug on the underside of gear box.
2. Wipe swarf off of magnetic drain plug.
3. Install drain plug after gear box is drained, but Do Not torque down plug to much because gear box is cast aluminum.
4. Fill gear box through dip stick hole. You will have to remove your air intake (which is simple) and use a funnel.

I used Mobile One synthetic gear lube as spec. in owners manual. The lube came in bottles that had a small tip that helps fill small ports.

Hope this helps!

Steve
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Old 11-06-2001, 12:19 AM   #4
syntrix
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on the wrx you don't need to remove the intake.

Just look under the intercooler on the passenger side, there's a dipstick. Get a small funnel and you can pour your new mobil1 75w-90 right down in there.

TRans is under 4quarts and it seems like the rear diff is about .5 or so. I'm sure the specs are in the manual
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Old 11-06-2001, 06:46 AM   #5
tmat3
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Stupid Geocities.... Basically, what I have on my site is described by STORER.

If you have a torque wrench, torque the drain bolts to 30lb/ft of torque.
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Old 11-06-2001, 08:17 AM   #6
Austin
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Tranny/Front diff capacity is 3.7qts, drain plug torque spec 32.5ft/lbs. Rear diff capacity is .7 qts, which doesn't matter because you can't overfill anyway, drain plug torque spec is 36.3ft/lbs.

Swarf is a cool word
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Old 11-06-2001, 02:01 PM   #7
Corpsie
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What does "swarf" mean exactly?
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Old 11-06-2001, 02:09 PM   #8
STORER
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Swarf is the fine metal chips left from a grinding or microfinishing opperation. I design microfinishing machines so it's a common word for me. It dose sound cool!

Steve
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Old 11-06-2001, 03:54 PM   #9
Stanley
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Talking Can of worms

Syntrix,
no syncro issues with Mobil 1 75W90? I was thinking about Redline 75W90ns in my tranny, or some other quality synthetic, but it seems some folks have problems grinding gears.

I am assuming (hoping) that for my purposes - street driving, no track - that I will be OK.
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Old 11-06-2001, 10:46 PM   #10
jlyttle
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I just did both of these on Sunday. I used Mobil1 75w90 in the rear, redline 75w90ns in the tranny. No grinding, shifts great. No sluggishness in the stick on cold mornings. The trans plugis directly behind the oilpan.
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Old 11-07-2001, 12:25 AM   #11
po1010
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when is the good time(mileage) to remove transmission oil and rear diff.
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Old 11-07-2001, 01:30 AM   #12
HomerJay
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Since you live in the City, about every 5K j/k. You can actually wait till about 30k but it depends on your driving style and where you live. Definitely sooner if you live in the city.

-JOE
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Old 02-21-2002, 12:13 PM   #13
DownSouth
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Question plug sealant

My manual says that you sould put some sealant around the rear differential drain/refil plugs. It says specifically

Three Bond 1105

I have no idea what that is. Any suggestions? I know it's to seal it up, so i want to use something. What can you substitute? (Preferably something I can buy at NAPA or AutoZone or someplace.)

Thanks, BOB
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Old 02-21-2002, 12:24 PM   #14
DownSouth
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Question transmission plug gasket

One more thing.....
The manual says that there is an aluminum gasket for the transmission drain plug (MT) that must be replaced. Do you really need to replace it?

I haven't seen this mentioned in the searches I've done (and I've done alot!) I hate asking repetitive queastions! Thanks, BOB
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Old 02-21-2002, 12:33 PM   #15
alfaguy
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Here's a general suggestion that has saved my a$$ a few times when draining transmissions, diffs, or transaxles:

Before you remove the drain plug, make sure you can get the filler plug loose. Imprezas are new enough that they probably won't be siezed on, but it could happen.
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Old 02-27-2002, 06:44 AM   #16
Frederf
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Good idea, make sure you can finish the job before starting it.
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Old 02-27-2002, 09:07 AM   #17
donjuan
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DownSouth--There is an aluminum ring on the tranny drain plug. I had planned to replace it, but when I removed the plug, I noticed that it's just that a ring, not an actual crush gasket like on the engine oil drainplug. I decided NOT to change it, and I have no leaks, but it couldn't hurt anything, I'm sure it's cheap.
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Old 02-27-2002, 10:10 PM   #18
jhonas
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I didn't replace mine, but I also forgot to put it back on I think I'll be attempting that this weekend.

The torque specs are 32.5 lb-ft for the transmission drain bolt and 36 lb-ft for the rear differential drain and fill bolts. All though if this is your first time taking them off, they'll be torqued down much more than that...
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Old 02-28-2002, 10:32 AM   #19
DownSouth
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Thanks for all the info everybody! This site is a huge resource for me.
I had a machinst make me a square drive to fit the rear differential drain plug. I'm going to try it this weekend, if it works I will post pics and dimensions. It was treally easy to make.
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Old 03-01-2002, 01:02 AM   #20
Austin
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Quote:
I had a machinst make me a square drive to fit the rear differential drain plug.
Why did you have a 1/2" drive machined when you can get a 1/2" drive ratchet for $2 at an el-cheapo autoparts store?
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Old 03-01-2002, 11:45 AM   #21
DownSouth
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Well, the hole is not a 1/2" square hole. I wanted something that was the proper fit, not just good enough. The place I work has a machine shop, and it only took a couple of minutes to finish, so I figured why not?
I bought a 1/2" to 3/4" drive adaptor and had the 3/4" milled down to a 0.525" square. (1/2" drives are actually not 0.500")
The new drive fits the hole perfectly and I'm going to use it for the first time this weekend.

Besides, I'm an engineer and I do nerdy things. BOB
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Old 03-04-2002, 07:28 PM   #22
fredj
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Default Differential plug sealant

Since the plug looks for all the world like a 3/4 inch pipe plug, it even screws into a 3/4 fitting, I would sugggest using teflon tape pipe dope on it. This has the advantage of not hardening or "glueing" the plug in. It will be a lot easier to get out next time.
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Old 03-09-2002, 05:13 PM   #23
WRXVII
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Stock transmission oil is green? is that right?
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