ATF change out

Post by **vtl** » 15 Sep 2021, 07:42

Mr. Detail wrote: ↑15 Sep 2021, 07:39 vtl, after removing the ATF plug is there a aluminum crush washer that needs replacement or can I re-use the old one?

Yes, a regular washer. Flip it over, can reuse one more time, then replace.

I've got a few dozens of these: https://www.fcpeuro.com/products/volvo- ... v50-v70-xc

Mr. Detail · Post by **Mr. Detail** » 16 Sep 2021, 05:47

vtl, the last question I promise.
After removing the ATF drain plug, how much fluid do I allow to come out at a time? say 2 quarts and then re-plug it?
I am not sure since the engine is not running how much fluid drains out at a time.

Post by **cn90** » 16 Sep 2021, 06:16

- I re-use the washers all the time but here is the trick: keep it in the same orientation.
The drain bolt (whether engine oil change or ATF change) creates a distinct dent on the washer.
If you keep it in the same orientation ---> no leak.
If you flip it around, chances are---> leak!

- I posted these washers photo in forum...

Post by **cn90** » 16 Sep 2021, 06:18

I posted BMW washers pics here...
https://www.bimmerfest.com/threads/re-u ... er.983316/

And 1998 Volvo V70 pics here:
viewtopic.php?t=42989

Post by **vtl** » 16 Sep 2021, 06:49

Mr. Detail wrote: ↑16 Sep 2021, 05:47 After removing the ATF drain plug, how much fluid do I allow to come out at a time? say 2 quarts and then re-plug it?
I am not sure since the engine is not running how much fluid drains out at a time.

Drain everything. About 3-3.5 quarts will come out. Measure in a marked milk jug, refill the same amount.

ignatz · Post by **ignatz** » 16 Sep 2021, 14:00

I use this laboratory gadget. I can't believe I didn't break it yet!
Also, to get an accurate reading, you should let the drained oil to cool down to 60 deg F.
But I get a good ballpark of what came out.

Post by **vtl** » 16 Sep 2021, 14:07

Made in USA, scale is in milliliters (1/1000th of 1.057 quart), "Approximate volumes" - America does not believe in metric system =)

Mr. Detail · Post by **Mr. Detail** » 16 Sep 2021, 15:42

[/quote]
Drain everything. About 3-3.5 quarts will come out. Measure in a marked milk jug, refill the same amount.
[/quote]

VTL, when I re-fill the same amount (3-3.5 qts) should the plug be re-inserted first or does the plug still stay removed?
I will assume that the plug stays out so the fresh 3-3.5 qts will force out more dirty ATF.
Sorry, I am an engineer and I like details.

Post by **vtl** » 16 Sep 2021, 15:56

Bolt is fully screwed in, otherwise you will loose all of your new ATF

Mr. Detail · Post by **Mr. Detail** » 16 Sep 2021, 16:11

but then how do I get the other 9-10 dirty quarts out?

ATF change out

Re: ATF change out