Greetings guys, haven't been on here in ages. basically 'cos nothing on my Terrano was broke. Yeah, but now it is. Auto transmission toasted it self yesterday, running crazy hot, fluid black and smoky and misting out the top of the filler tube, no 4th gear.
So I got a RE4R01A auto tranny on a North American petrol (gasoline) 1994 Nissan Pathfinder WD21 SE V6 3.0litre that I know had a few minor probs when it was on my old truck. Didn't like to shift into 3rd every now and again.
Going to rebuild that transmission and swap it with the toasted unit in my Japanese 1991 WBYD21 diesel Terrano.
But before I do, the main question is, will it swap over? I don't imagine there should be any issues. Both RE4R01A 4WD units. But I'd thought I'd ask you guys here just in case.
Never rebuilt a transmission before so going to take my time and plenty of notes, photos, labelled plastic bags etc. And lots of research.
Anyway, would value any input.
Transmission Rebuild Question
Moderator: Mark
Re: Transmission Rebuild Question
Hey,
Surprising no-one has yet replied, perhaps all out getting dirty...
The bellhousing might be different to the V6.
Perhaps if you're getting it rebuilt, you could explain this to the workshop, give them both g/boxes and let them sort it out....
But surely there are enough stuffed Terranos over there with spare autos laying about....
Love them D21s
Surprising no-one has yet replied, perhaps all out getting dirty...
The bellhousing might be different to the V6.
Perhaps if you're getting it rebuilt, you could explain this to the workshop, give them both g/boxes and let them sort it out....
But surely there are enough stuffed Terranos over there with spare autos laying about....
Love them D21s
Re: Transmission Rebuild Question
Bell housing
Torque converter
pump
input shaft
and I think the ratios are different too.
Torque converter
pump
input shaft
and I think the ratios are different too.
Re: Transmission Rebuild Question
surfer x2 wrote:Bell housing
Torque converter
pump
input shaft
and I think the ratios are different too.
Ah, bugger. And there was me thinking that just the bell housings would be different. Both are RE4R01A auto transmissions though. And I was planning on doing the rebuild my self, difference between spending $500 and lots of time an research and concentration, versus $3500 to get the garage to do it.
Back to researching part numbers!
Re: Transmission Rebuild Question
Yup Surfer x2, you're right. Different parts numbers, though the cases are the same, much of the other stuff is different. Damn, why didn't I check to do that initially!
Guess that alters my strategy somewhat. Will have to research the V6 RE4R01A rebuild kit available here in Canada. See what soft parts, gaskets, driven plates, drive plates etc are in it, what's common to both the V6 and diesel gear boxes, and build an equivalent diesel kit. Seems on first pass though that many of the parts numbers for that kind of thing are shared between the V6 and diesel transmissions.
All I can say is a big thank you to you guys. Bloody good job I haven't started the rebuild yet!
Guess that alters my strategy somewhat. Will have to research the V6 RE4R01A rebuild kit available here in Canada. See what soft parts, gaskets, driven plates, drive plates etc are in it, what's common to both the V6 and diesel gear boxes, and build an equivalent diesel kit. Seems on first pass though that many of the parts numbers for that kind of thing are shared between the V6 and diesel transmissions.
All I can say is a big thank you to you guys. Bloody good job I haven't started the rebuild yet!
Re: Transmission Rebuild Question
The RE4R01A came out in multiple nissans (4x4s and cars). There are 2 sets of ratios, and for the most part they changed 94-95ish (some but not all) Input, pump bellhousing and output and output housing vary depending on car but are all interchangeable.
Use to internals of your new box, add pump, input shaft and bellhousing from the original. (check the input it may be the same)
Obviously you need the original Torque Converter as the stall will be different, as will the trans computer (different rev/shift points)
Use to internals of your new box, add pump, input shaft and bellhousing from the original. (check the input it may be the same)
Obviously you need the original Torque Converter as the stall will be different, as will the trans computer (different rev/shift points)
Toy - Zuk chassis tub, hilux 4.88 axles and transfer, Nissan CA18DE motor and auto trans, sc12 supercharger, 32 10'5 simex, twin motor 8274 custom freespool. Well the parts are all there in various corners of the shed
Re: Transmission Rebuild Question
Doing a huge amount of parts numbers cross referencing between the 1991 TD27 transfer case (RE4R01E 47X15), the 1991 VG30E case (RE4R01E 45X24) and the 1994 VG30E auto gear box (RE4R01A 45X72).
Seems the 1991 TD27T and VG30E units are very similar. Different bell housings and torque converters for sure, and different trans computer as you said meatc, but the input shaft and pump have the same parts numbers. Seal rebuild kit is the same. Only obvious differences so far are retaining plate thickness, servo pistons, and drive/driven plate assemblies. The 1994 VG30E unit is different agian, though the input shaft and oil pump are the same. Haven't got round to comparing parts numbers for the valve body yet.
So, given the above, technically, I could take a 1994 VG30E auto transmission, swap over the bell housing and torque converter and install on the 1991 TD27T. Correct, or am I groping up the wrong skirt here? Would have have to install the 1994 VG30E trans computer too or use the 1991 diesel one?
Pulling and reinstalling these transmissions is a royal pain in the arse, at least for me, and the Diesel Terranos imported from Japan into Canada here are few and far between. Not a job I want to repeat, so I want to make sure I'm rebuilding and installing a unit that will work. Rebuilding the VG30E units isn't a problem as I have all the data (tolerances, clearances, thicknesses, end plays etc) 'cos they were sold here in N. America. What I don't have are the S.D.S. tables for the TD27T unit. If I have to go that route and rebuild the diesel Japanese unit, does anyone here have access to the Service Data and Specifications for it?
Seems the 1991 TD27T and VG30E units are very similar. Different bell housings and torque converters for sure, and different trans computer as you said meatc, but the input shaft and pump have the same parts numbers. Seal rebuild kit is the same. Only obvious differences so far are retaining plate thickness, servo pistons, and drive/driven plate assemblies. The 1994 VG30E unit is different agian, though the input shaft and oil pump are the same. Haven't got round to comparing parts numbers for the valve body yet.
Obviously you need the original Torque Converter as the stall will be different, as will the trans computer (different rev/shift points)
So, given the above, technically, I could take a 1994 VG30E auto transmission, swap over the bell housing and torque converter and install on the 1991 TD27T. Correct, or am I groping up the wrong skirt here? Would have have to install the 1994 VG30E trans computer too or use the 1991 diesel one?
Pulling and reinstalling these transmissions is a royal pain in the arse, at least for me, and the Diesel Terranos imported from Japan into Canada here are few and far between. Not a job I want to repeat, so I want to make sure I'm rebuilding and installing a unit that will work. Rebuilding the VG30E units isn't a problem as I have all the data (tolerances, clearances, thicknesses, end plays etc) 'cos they were sold here in N. America. What I don't have are the S.D.S. tables for the TD27T unit. If I have to go that route and rebuild the diesel Japanese unit, does anyone here have access to the Service Data and Specifications for it?