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Engine Specific Info and Questions => IDI Engine => Topic started by: bbob203 on August 13, 2012, 08:08:07 am

Title: Auto transmission into 91 jetta na
Post by: bbob203 on August 13, 2012, 08:08:07 am
my girlfriend refuses to drive a vehicle with a manual transmission. So she will only drive a diesel car with an auto trans. What all mods would I have to do if I wanted to put one in. would a 4 speed from and mk3 work in my 91 na? I think they had 4 speeds. I don't know $h17 about auto stuff. what all would I need?
Title: Re: Auto transmission into 91 jetta na
Post by: rs899 on August 13, 2012, 08:15:26 am
I would think about a new girlfriend....you may not be compatible....

Seriously, I really don't know but since an automatic consumes maybe 5-10 horsepower, there's nothing left to move the car.  I suppose she wants A/C, too?
Title: Re: Auto transmission into 91 jetta na
Post by: CRSMP5 on August 13, 2012, 08:38:06 am
a diesel rabbit/kubvan.... = 65 max with no ac... add 500-1000lbs... ac... might as well leve all 4 tires flat with no air in your current car to see how it will be...

electric auto like mk3-mk4... 3k$ to stealership for NEW one as no such thing as good used one as tey are handgrenades with pin pulled by 80k...

so no diesel for hr.. i agree she must want replaced...

Title: Re: Auto transmission into 91 jetta na
Post by: bbob203 on August 13, 2012, 08:53:03 am
she actually can deal with no ac because she likes overly hot weather. ill try to further prove to her how stupid auto is.
Title: Re: Auto transmission into 91 jetta na
Post by: R.O.R-2.0 on August 13, 2012, 09:14:25 am
she actually can deal with no ac because she likes overly hot weather. ill try to further prove to her how stupid auto is.

just get a crappy trans, so you can swap it in 10k miles..

then do it again in 10k miles..

then she might get the hint.. if not, get a new g/f...
Title: Re: Auto transmission into 91 jetta na
Post by: bbob203 on August 13, 2012, 09:20:05 am
she actually can deal with no ac because she likes overly hot weather. ill try to further prove to her how stupid auto is.

just get a crappy trans, so you can swap it in 10k miles..

then do it again in 10k miles..

then she might get the hint.. if not, get a new g/f...

I've thouggt about sabotage.
Title: Re: Auto transmission into 91 jetta na
Post by: R.O.R-2.0 on August 13, 2012, 09:23:33 am
she actually can deal with no ac because she likes overly hot weather. ill try to further prove to her how stupid auto is.

just get a crappy trans, so you can swap it in 10k miles..

then do it again in 10k miles..

then she might get the hint.. if not, get a new g/f...

I've thouggt about sabotage.

its not sabotage tho.. its the way of the VW auto trans, even with 52hp attached to it..
Title: Re: Auto transmission into 91 jetta na
Post by: JessaBug on August 13, 2012, 11:04:55 am
Not entirely true. Some of the late 80's/early 90's auto transmissions actually were work horses. My FIL's '91 Vanagon had an auto in it. 260k on the original trans...and 60k of that it was spewing trans fluid. When it started shifting funny, you put in some more fluid. Then it was smooth again for a few months. I was highly impressed with it...though it was a 3-speed so it absolutely screamed on the highway.

Both of his vanagons now ('84 camper with a 2.2 Subaru swap and an '87 syncro with a 1Z swap) are manuals though. Pretty funny to drive behind them...giant box and you certainly see it move when its shifted.
Title: Re: Auto transmission into 91 jetta na
Post by: R.O.R-2.0 on August 13, 2012, 11:06:28 am
he was not talking of using an old 010 auto trans tho..

they were talking about using the later mk3/4 trans.. the electronic 4 spd pile of garbage..

the 010 3 spd trannies DID NOT DIE..

they didnt have overdrive either tho..
Title: Re: Auto transmission into 91 jetta na
Post by: JamesT on August 13, 2012, 01:12:52 pm
Not entirely true. Some of the late 80's/early 90's auto transmissions actually were work horses. My FIL's '91 Vanagon had an auto in it. 260k on the original trans...and 60k of that it was spewing trans fluid. When it started shifting funny, you put in some more fluid. Then it was smooth again for a few months. I was highly impressed with it...though it was a 3-speed so it absolutely screamed on the highway.

Both of his vanagons now ('84 camper with a 2.2 Subaru swap and an '87 syncro with a 1Z swap) are manuals though. Pretty funny to drive behind them...giant box and you certainly see it move when its shifted.
The VW 3-speeds last forever. The Vanagon box is based on the auto found in type 3's starting around 1967. Not the most modern beast, but it does the trick.
The auto from my rabbit also seemed to go on forever, until I got sick of the slushbox feel and no overdrive. Sadly, I'm back to that sort of highway howl because of the 4-speed manual that I put it in on a whim. That being said, I think it would work well with an N/A because of the lack of overdrive. You're going to need to prevent it from kicking down somehow (mine used to rev the 1.6 gasser to over 6k if I pinned it), but it should pull alright around town.
Title: Re: Auto transmission into 91 jetta na
Post by: RabbitJockey on August 14, 2012, 04:54:30 am
The vanagons and rabbit trans were basically the same, even Audi used them,  I think Audi even had a 4 speed version.  I had an na auto rabbit I loved it, it didn't seem down on power to me at all and consistently got 40mpg.  I quite miss it actually
Title: Re: Auto transmission into 91 jetta na
Post by: bbob203 on August 14, 2012, 07:33:34 am
The vanagons and rabbit trans were basically the same, even Audi used them,  I think Audi even had a 4 speed version.  I had an na auto rabbit I loved it, it didn't seem down on power to me at all and consistently got 40mpg.  I quite miss it actually

what transmission was it? it prob wouldn't work in my mk2 though cuz the mounts are different eh?
Title: Re: Auto transmission into 91 jetta na
Post by: theman53 on August 14, 2012, 07:39:42 am
An manual to auto swap is much more difficult than a gf swap...unless you have kids with her, then it might be a toss up.

Why cannot she try to learn?
Title: Re: Auto transmission into 91 jetta na
Post by: bbob203 on August 14, 2012, 07:47:17 am
An manual to auto swap is much more difficult than a gf swap...unless you have kids with her, then it might be a toss up.

Why cannot she try to learn?
well she sort of can drive it. But she has been in a few car accidents.. bad ones. so having 1 more thing to think about while driving kinda freaks her out.. well not kinda.. a lot.
Title: Re: Auto transmission into 91 jetta na
Post by: Dakotakid on August 14, 2012, 08:44:54 am
Sounds like the girl is rather maxxed-out just getting through her day.
Yes, America's current crop of young women certainly is impressive isn't it?

The original diesel 010 would run a long time if you changed out the ATF on a frequent basis (I got 435,000 miles out of mine and it was still going).

But, the back-of-engine placement of the 40 lb. starter constantly subjected the starter to very high exhaust pipe temps and the starters would crap out. And, these were very expensive starters to deal with.
Title: Re: Auto transmission into 91 jetta na
Post by: 8v-of-fury on August 14, 2012, 09:08:11 am
Our 010 is still going strong with 300k kms on it.. Behind the powerhouse of a RV 1.8 no less.

I would love to put an auto on a a diesel.. Spool the turbo against the brakes, ohh yeah. The 010 3spd might do alright for an IDI race car with a bigger than T3 turbo where you wanted to be 3000+ all the time.
Title: Re: Auto transmission into 91 jetta na
Post by: RabbitJockey on August 14, 2012, 10:09:25 am
The vanagons and rabbit trans were basically the same, even Audi used them,  I think Audi even had a 4 speed version.  I had an na auto rabbit I loved it, it didn't seem down on power to me at all and consistently got 40mpg.  I quite miss it actually

what transmission was it? it prob wouldn't work in my mk2 though cuz the mounts are different eh?

Thyre all 010 but yes a vanagons trans only works for vanagons a golf/jetta for golf/ jetTas.  They are internally the same but have different things in different places
Title: Re: Auto transmission into 91 jetta na
Post by: R.O.R-2.0 on August 14, 2012, 11:40:54 am
The vanagons and rabbit trans were basically the same, even Audi used them,  I think Audi even had a 4 speed version.  I had an na auto rabbit I loved it, it didn't seem down on power to me at all and consistently got 40mpg.  I quite miss it actually

what transmission was it? it prob wouldn't work in my mk2 though cuz the mounts are different eh?

Thyre all 010 but yes a vanagons trans only works for vanagons a golf/jetta for golf/ jetTas.  They are internally the same but have different things in different places

the Vanagon, and audis used the same auto trans

you can un bolt the TRANSMISSION from the final drive assembly, and bolt it to a transverse final drive..

bam, instant tough rabbit/golf/jetta trans..

the audi and vanagon used 5 clutches in each pack, rather than the 3 of the rabbit style trans..

BTW.. diesel auto starters are RARE AS HELL.. they are not being produced, and barely remanufactured, because all of them are dead, and were not common to begin with..
Title: Re: Auto transmission into 91 jetta na
Post by: RabbitJockey on August 14, 2012, 11:49:28 am
Hmm I thought the cases were actually different, but I have only ever seen them in golfs and jettas,  that's pretty sweet
Title: Re: Auto transmission into 91 jetta na
Post by: CRSMP5 on August 14, 2012, 12:09:51 pm
sux on the starter... lots more kubvans vs mk1...

the issue with the old auto besides gear ratio.... the seal will fail between the 2 halves and fill the final drive with atf.... then blow the diff apart... but hell check the gear oil 1x a year.. when its overfilled drill drain.. add plug... change it and atf.. add some jb (justice brothers) tranny conditoner to it... refill... check gear oil on all next oil changes... when it gets to point of too much oil... drain final drive.. refill.. only holds 1qt.. and keep eye on it... get another 100k easy..

Title: Re: Auto transmission into 91 jetta na
Post by: CrazyAndy on August 14, 2012, 06:07:35 pm
So the FDs on 010s only had fill plugs and no drains?  That's pretty stupid.  But I'm with CRS on this one, just mod it before you put it into the car for ease of work.  Use a Chrysler oil drain plug on account of them having integrated rubber washers on the plug head as well as a mildly magnetized tip.  Do the auto trans diff cases have a flat spot where the drain would be on a manual?
Title: Re: Auto transmission into 91 jetta na
Post by: burn_your_money on August 14, 2012, 06:34:32 pm
There is a fluid for the 010s that is compatible with the tranny and diff side just incase the seal does leak.

I'm pretty sure there is a drain on it, it's been a while since I had mine apart.

No matter what tranny you go with, if it's not a diesel auto, you will HAVE TO shift into neutral anytime you are at a stop. VW claims that the "E" on the diesel auto is so that it can coast when you take your foot off the gas and save fuel. If that was true the gassers would have it as well. It's purpose is so that at a stop the tranny automatically shifts into neutral so your car doesn't rattle apart.

That said, drop in a 010 from a gasser, it's a pretty easy swap and with the proper adjustments you'll be happy... or she will be anyways. You need both throttle cables (pedal to tranny, tranny to pump), and the auto pump bracket as they are unique to the auto diesel.
Title: Re: Auto transmission into 91 jetta na
Post by: CRSMP5 on August 14, 2012, 08:52:47 pm
correct no drain.. on either auto or fd..

auto drill pan at the spepped corner, weld thin 8mm nut inside... use copper washer and 8mm bolt..

fd.. ive always used a pipe plug... thing close to 10x1.. cannot think its american size.. but oil filter housings on pre 82 have them... taper fit for seal.. way before the allen plug and gasket they went too.. 4 sided square head.. why... not a flat spot on the casting for gasket.. but a usa style ntp taper fit pipe plug = tits perfect..
Title: Re: Auto transmission into 91 jetta na
Post by: libbydiesel on August 14, 2012, 10:00:29 pm
I just picked up a 2002 Jetta with the O1M auto.  Reverse gear just disappeared.  That was the original trans and lasted to 238,000 miles.  Most of them had trouble or failed by 150-180,000 miles.  While the manuals basically go forever, 150,000 miles seems reasonable to me.  My wife also doesn't like to drive cars with manual transmissions and it's certainly not worth it to me to have her at all stressed out when driving.  While I prefer manual transmissions for the added control, better performance and increased fuel economy, she puts up with me and my quirks and maintaining an automatic for her as her daily driver is the least I can do.  The thought of choosing/ditching a significant other based on what transmission they want to drive seems incredibly shallow to me.

the Vanagon, and audis used the same auto trans

Not exactly the same, but interchangeable.  The Audi trans is more robust and commonly used as an upgrade in vanagonland.
Title: Re: Auto transmission into 91 jetta na
Post by: R.O.R-2.0 on August 15, 2012, 01:11:40 pm
I just picked up a 2002 Jetta with the O1M auto.  Reverse gear just disappeared.  That was the original trans and lasted to 238,000 miles.  Most of them had trouble or failed by 150-180,000 miles.  While the manuals basically go forever, 150,000 miles seems reasonable to me.  My wife also doesn't like to drive cars with manual transmissions and it's certainly not worth it to me to have her at all stressed out when driving.  While I prefer manual transmissions for the added control, better performance and increased fuel economy, she puts up with me and my quirks and maintaining an automatic for her as her daily driver is the least I can do.  The thought of choosing/ditching a significant other based on what transmission they want to drive seems incredibly shallow to me.

the Vanagon, and audis used the same auto trans

Not exactly the same, but interchangeable.  The Audi trans is more robust and commonly used as an upgrade in vanagonland.

hmm, did not know that.. i always thought they had the same trans, but with the carrier/ring gear flipped around in the final drive..

thanks for the piece of info..
Title: Re: Auto transmission into 91 jetta na
Post by: libbydiesel on August 15, 2012, 02:05:12 pm
I could look up the difference, but if memory serves, the audi unit has more splines on the planetary ring gear and an extra planetary gear (4 instead of 3) on each of the sets and so is stronger.  It may just be the Audi 5000 turbo ones that are stronger.  Anyway, the parts interchange for an even more robust unit.
Title: Re: Auto transmission into 91 jetta na
Post by: R.O.R-2.0 on August 15, 2012, 02:07:33 pm
I could look up the difference, but if memory serves, the audi unit has more splines on the planetary ring gear and an extra planetary gear (4 instead of 3) on each of the sets and so is stronger.  It may just be the Audi 5000 turbo ones that are stronger.  Anyway, the parts interchange for an even more robust unit.

well, my audi trans is indeed a 5k TD unit, so its the tough one, with E mode..

BTW, my audi never needed to be in E or N when stopped.. it was worn far enough out that it wouldnt vibrate a whole lot at idle in gear

 :P