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reay
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Joined: July 14, 2004
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 Posted: Sun Aug 23, 2015 9:29 am Post subject: Torque Converter Question |
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I'm reinstalling my TC. I've been through the Bentley manual and it doesn't say how to refill the ATF or how much to put in.
Any ideas?
Thanks -Tom
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Tom Reay
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KTPhil 
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Location: Conejo Valley, CA
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| Posted: Sun Aug 23, 2015 11:21 am Post subject: |
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I thought I have read it somewhere, Tom, but all I can find is the capacity of the combined tranny and converter, both dry and refill, from an Aussie manual:
Converter/transmission (dry) ........... 10.56 Imp pts (12 US pts)
Converter/transmission (change) ...... 5.25 Imp pts (6 US pts)
If correct this means half the fluid is still in the tranny/converter when you drain it to change the fluid. The implies half the capacity is contained in the TC.
Consensus seems to be that you fill as much as you can, let the pump fill it the rest of the way, then top off the tranny. Folks who asked about a total change got answers implying you can't, and therefore should drain/refill several times to get rid of any crap in the fluid. If you only get half out each time and do it four times, you get over 90% of it changed out.
I remember one manual showing a siphon hose emptying the converter. I suppose a hand pump could refill it if it isn't easy to get access.
http://www.thesamba.com/vw/forum/viewtopic.php?t=591589
http://www.thesamba.com/vw/forum/viewtopic.php?t=502566
Last edited by KTPhil on Sun Aug 23, 2015 3:23 pm; edited 1 time in total |
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reay
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| Posted: Sun Aug 23, 2015 3:22 pm Post subject: |
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Thanks Phil -
I wasn't thinking the TC and the trans ATF communicated with each other, but of course they do.
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Tom Reay
Da weiss man, was man hat!
68 Karmann Ghia Sunroof / auto T345
66 Standard Microbus T221
66 1200a Standard 115 with factory ragtop |
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old DKP driver
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| Posted: Thu Aug 27, 2015 12:22 am Post subject: Torque converter fill |
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This is what I learned and also, taught my students when I was an auto
instructor.
There are 3 things to remember since the converter has 3 parts that need to be filed when dry.
YOU FILL the turbine which is the large mass of the converter and, then
set the converter on the bench or floor and spin it with your hand to build
the speed up in order to move the fluid into the stator.
The stator is the part that moves the fluid clockwise into the turbine which, is much like water from a hose that you aim to blow leaves off the ground.
Pressure is forced to change direction since the vanes make this happen as they are angled and therefore push the fluid like an old wind mill.
so, fill the converter and then spin it like a top.and, centrifugal force will allow more fluid capacity to enter before you install it.
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ibjack
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| Posted: Thu Aug 27, 2015 5:06 am Post subject: |
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When checking the fluid level it needs to be done while the car is warmed up and running and on a level surface
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reay
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| Posted: Thu Aug 27, 2015 7:28 am Post subject: Re: Torque converter fill |
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| old DKP driver wrote: |
This is what I learned and also, taught my students when I was an auto
instructor.
There are 3 things to remember since the converter has 3 parts that need to be filed when dry.
YOU FILL the turbine which is the large mass of the converter and, then
set the converter on the bench or floor and spin it with your hand to build
the speed up in order to move the fluid into the stator.
The stator is the part that moves the fluid clockwise into the turbine which, is much like water from a hose that you aim to blow leaves off the ground.
Pressure is forced to change direction since the vanes make this happen as they are angled and therefore push the fluid like an old wind mill.
so, fill the converter and then spin it like a top.and, centrifugal force will allow more fluid capacity to enter before you install it. |
I did that! Only because it was taking so long to fill, not because I knew what I was doing...
I put a full quart in it before i installed it.
Thanks for the info
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Tom Reay
Da weiss man, was man hat!
68 Karmann Ghia Sunroof / auto T345
66 Standard Microbus T221
66 1200a Standard 115 with factory ragtop |
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Bobnotch
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| Posted: Thu Aug 27, 2015 11:05 am Post subject: |
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| ibjack wrote: |
| When checking the fluid level it needs to be done while the car is warmed up and running and on a level surface |
Bentley also says to have the trans in neutral, with the parking brake on.
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reay
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| Posted: Thu Aug 27, 2015 12:07 pm Post subject: |
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Would it be warmed up enough just idling for 5 minutes or so?
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Tom Reay
Da weiss man, was man hat!
68 Karmann Ghia Sunroof / auto T345
66 Standard Microbus T221
66 1200a Standard 115 with factory ragtop |
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Multi69s
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reay
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| Posted: Fri Aug 28, 2015 3:48 pm Post subject: |
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The trans was still full, I only took the TC off so I have it rechecked for balance. I ended up putting a quart and 3/4 in total. The ATF is so clean its hard to tell how full it is.
Seems to be shifting fine, just drove it around the block.
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Tom Reay
Da weiss man, was man hat!
68 Karmann Ghia Sunroof / auto T345
66 Standard Microbus T221
66 1200a Standard 115 with factory ragtop |
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KTPhil
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| Posted: Fri Aug 28, 2015 3:48 pm Post subject: |
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reay
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| Posted: Fri Aug 28, 2015 3:58 pm Post subject: |
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No sh1t....I still have one carb giving me fits, but I think the new engine configuration - 1835 - is a winner.
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Tom Reay
Da weiss man, was man hat!
68 Karmann Ghia Sunroof / auto T345
66 Standard Microbus T221
66 1200a Standard 115 with factory ragtop |
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Multi69s
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