[V8] transmission service

[Scott Simmons]

I figure it's a safe bet to pull the drain plug first and check the 
condition of the old fluid.  If it looks halfway decent, I'll probably 
forgo the filter change until I'm doing something else in the region.  
If it looks at-all suspicious, I'll change the filter.

~Scott Simmons

Korn, Bob wrote:

>Cobram posted this recently:
>
>Doesn't seem to be in the archives, here's a repost from a few years
>ago:
>
>#1, replace fluid with a good synthetic, MobilOne Synthetic ATF (about
>$5 a quart) is one of the best.
>
>If you've never done it before, it might be a good idea to change/check
>the filter.   To get the pan off you'll have to remove the crossover
>pipe
>for the exhaust, have some bungee cords handy to hang the crossover so
>that you don't have to disconnect the O2 sensor.  Don't mix up the
>exhaust doughnuts, they're two different sizes.  By draining the pan
>you'll only get about 3 quarts of fluid out, some people like to
>fill/drain several times until the mixture thins out to a high
>percentage of new fluid.
>
>First time I changed mine the filter was spotless so I don't change the
>filter with the fluid every time (IF the old fluid is clean.)  I change
>the fluid by removing the two transmission cooler lines that go into the
>radiator, it takes a 10mm socket (I replaced the factory allens),
>extension and universal to get these off, a 13mm for the long bolt that
>holds the lines at the compressor.
>You might want to have some O rings handy if you want to change them,
>I've reused them several times with no leaks, just clean hole in
>radiator well and grease them a little.  Also a Hex driver for the
>trans. pan.
>
>With the lines out of the radiator and hanging down into a bucket and
>the dipstick open, have a 2nd person start the car.  The fluid will pump
>right out into the bucket in less than 30 seconds.  As soon as the
>stream of old fluid stops (usually get a little sputter) turn the car
>off.  You will want to make sure you shut it right down as soon as the
>flow stops.
>Then remove the plug from the trans. pan (drains about 2 qt.) and let
>the lines hang low until the fluid stops siphoning out (about a half
>hour.) Put everything back, fill with about 7 quarts, start it up and
>cycle through the gears,  you can check the dipstick after the trannie
>is up to operating temperature (if the engine oil temp is up to normal,
>it's a safe bet the trannie fluid is too.)
>
>It will usually take 8 quarts to fill using this procedure.
>
>Although I've never used a commercial flushing machine on the V8Q, based
>on the fluid pressure I've observed, IF you have the correct connections
>it looks like a flushing/filling machine would work well.  The flush
>machines I've seen use the trans. pressure to force out the old fluid
>while pumping in the new, usually with a view glass to gauge the old
>fluids clarity.  There are many cars (Toyota is one) that do not work
>well at all with flush machines, but the V8Q might be a good candidate. 
>
>-----Original Message-----
>From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com] On Behalf
>Of Scott Simmons
>Sent: Monday, November 13, 2006 6:58 PM
>To: v8 at audifans.com
>Subject: [V8] transmission service
>
>I'd like to change the transmission fluid as preventive maintenance.  
>The car is a 1990 with 125k on the clock and I have no service records
>so I don't know when the last time any drive line work was done.  I
>found a drain plug, how the heck do you fill it?
>
>~Scott Simmons
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