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  View original topic: Drain 4spd tranny warm or cold ?
the joker Fri Jun 20, 2014 6:09 pm

Ready to change the hyp gear oil in the 4spd should you drain it cold?

Few people told me to run it a while drive a few then drain

My thoughts are the shit in the bottom ( cold) will drain out
If it was warm all that shit would be smeared out all over the place :roll:

Jon_slider Fri Jun 20, 2014 7:54 pm

lol
warm
if you drain cold, a thicker coating of old oil stays behind

joseph928 Fri Jun 20, 2014 8:36 pm

Hot or cold doesn't matter, just takes longer cold. Did mine cold just let it drain tell no more oil comes out. Like 2 hours for me! And it helped to have the front end up. :D

dobryan Fri Jun 20, 2014 9:49 pm

IMHO warm is better (you are going to let it drain for a while so nothing is really going to be stuck to anything if significant), but best is to change it.... warm or cold! :D

IdahoDoug Fri Jun 20, 2014 10:16 pm

Warm. I always have my oil drain pan out for engine or diffy or tranny drain time so when I come back to the garage I have the drain plug out within a minute or two. I also remove the fill plug first so the oil can come out at high velocity, and also because it's good practice in case the fill plug strips or otherwise won't come out so you are not stranded.

DougM

Wildthings Fri Jun 20, 2014 10:52 pm

If you drive the van for a bit before pulling the plug, more nasties are apt to be held in suspension and will be removed with the oil.

the joker Sat Jun 21, 2014 8:45 am

Drained it -normal metals on the magnet-small stalagmite of 90K of wear :?
Filled it 1.6 qts plus -but don't feel any at the plug hole shouldn't I :?
It's on a slight grade in my driveway but still, don't have my Bentley

Any input would be appreciated

Randy in Maine Sat Jun 21, 2014 8:56 am

I always warm up the new gear oil in the microwave so that it pours or pumps easier.

the joker Sat Jun 21, 2014 9:03 am

Anyone have their Bentley handy - need the capacity if a 84 1.9 originally
T-25 4spd. Was I wrong to think 1.6qts. Is it more like 3.6qts

the joker Sat Jun 21, 2014 9:17 am

Just goggled it 2.8qts- is that correct?

Snort Sat Jun 21, 2014 10:15 am

The manual says 3.2 quarts.

However, it also says after that spec, "To reduce shifting effort, transmission oil capacity has been reduced. ... Oil should only be poured in to a level approximately 15mm below the hole."

Wildthings Sat Jun 21, 2014 10:44 am

Snort wrote: Oil should only be poured in to a level approximately 15mm below the hole."

I tried that BS when I first bought my Syncro as it couldn't hardly be forced into gear. As one would expect dropping the level made zero difference.

Jon_slider Sat Jun 21, 2014 10:52 am

the joker wrote: feel any at the plug hole shouldn't I

yes, fill it full til it runs out the hole, with the van level. I recommend Mobil Delvac 75w-90

http://www.thesamba.com/vw/forum/viewtopic.php?p=7235988
Syncro Jael wrote:

70coupyel Sat Jun 21, 2014 12:26 pm

I just had mine rebuilt and my rebuilder said to put 3.2 qts. in.
How much oil are you guys putting in when you fill it to the fill hole?



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