Rollaclub - User contributions [en]

Tech:Engine/K Series/Gearboxes

2015-09-25T02:23:42Z

Xany:

[[Category:K Motor]]
There are a few options for adapting a gearbox to a K series motor, So here is a guide is to what is out there..

[[Image:100 1648 Gearboxes.jpg]]

'''K40/K50 (Toyota Factory 4/5 Speed manual)'''

The K40 or K50 gearbox was factory fitted behind 3K/4K/5K motors. They are the most common gearbox in early KE Corollas. TRD gearsets were available for K50 gearboxes.

'''T40/T50 (Toyota Factory 4/5 Speed Manual)'''

The T50 gearbox is a lot stronger than the K50 gearbox and is a split casing design. You can still purchase close ratio gearsets for the T50 gearboxes through TRD and also Quaife. The T40 or T50 gearbox can be adapted to a K series motor with a K-T Bellhousing,

''The K-T Bellhousing came in a few different forms...''

1. Cable clutch K-T Bellhousing, Extremely rare, Easier to install in earlier KE Corollas as you don't need to install a hydraulic clutch (Pictures courtesy of Xany and tojo2).

[[Image:Gearboxnetresize01.jpg]]

[[Image:Gearboxnetresize05.jpg]]

[[Image:Gearboxnetresize04.jpg]]

----

2. Hydraulic clutch K-T Bellhousing, Rare, Requires hydraulic clutch setup to be installed. (Off KA67 5K T40/Carina, KT14x series Corona)

[[Image:Sv107233.jpg]]

[[Image:2007 0502400096.jpg]]

[[Image:2007 0502400097.jpg]]

[[Image:Sv107258.jpg]]

[[Image:Sv107239.jpg]]

3. TRD Upright bellhousing, Like the Holy Grail if you can find one, Cable clutch, Designed to allow for the positioning of an upright K motor. If you have one of these please send me some pictures so I can upload them here, Also your address would be great so I can come and steal it :)

CLUTCH FOR K-T50:
Although the K-T50 bellhousing in any form is very rare, nearly every clutch manifacturer make a kit for it. When looking for a ke20-70 clutch kit you may be asked "is it a 19 or 21 spline?"

All post ke20 K40 and K50 gearboxes have a 19 spline input shaft, with a 180mm diametre clutch plate. Hence the clutch dimentions are 180x21.6x19T - where 21.6mm is the input shaft diametre. These are listed as "most 4 & 5 speeds".
This is the exedy listing for a K40/50 clutch....
http://www.exedy.com.au/SpecSheet.aspx?SpreadsheetRowId=40330

The T50 box has a 24.1mm input shaft with 21 splines, this is the 21 spline kit you may be asked if you have. It still bolts to a stock 3k/4k 180mm flywheel, hence the clutch dimentions are 180x24.1x21T. Commonly referred to as "some 5 speeds". Here is Exedy's listing for the K-T....
http://www.exedy.com.au/SpecSheet.aspx?SpreadsheetRowId=40331

You may also notice that between different clutch manifacturers the middle number in the dimentions (input shaft diametre) may be different. For example PBR list the K-T50 kit as 180x28.3x21T. This is because they measure the diametre of the shaft in the vallies, whereas say Exedy measure it on the peaks of the spline.

GEARBOX SELECTION - Which one to use?
There are a few different type of T50 gearboxes, and you need to be selective on which one you use for a K-T.
Shifter position:
TA22 & T18 T50's share a "ke30-55" shifter position. The AE86 and AE71 T50's have a "ke70" shifter position.
TA22 & T18 T50's both also have a 20 spline output shaft, just like a ke20-70 corolla. The gearbox is also the same length so there is no tailshft mods required to use one! The later (AE86/AE71)ones are 22 spline output and will require the tailshaft yoke to be swapped.

'''Toyota W50 (Toyota Factory 5 Speed Manual)'''

The W#0 (W40/W50) gearbox will fit if you use a K-L (L40) van bellhousing from a KM20-36 Liteace.
This bell housing will bolt up to 4x of the 7x bolt holes on a W40 or W50 celica STEEL CASE gearbox, however you will need to grind a small amount out of the back of the bell housing to clear a "welse plug looking thing" on the gearbox - see the below link for pictures of this. I have mine bolted to (see below pic) an RA40 celica W50.

CLUTCH and FLYWHEEL:
There is only one option when it comes to clutches & flywheels for this GB combo. You need to use the KM20-36 (beit 4k or 5k) flywheel, clutch fork, throwout bearing retainer, and clutch kit. The flywheel on a litace has the same overall diametre as a corolla one, however it has a bigger 200mm clutch plate surface. The W50 input spline is the same as a liteace one so it all then matches up. Clutch dimentions are 200x29.8x21T and here is the exedy listing.....
http://www.exedy.com.au/SpecSheet.aspx?SpreadsheetRowId=14772
Even though this is a 'light commercial' clutch kit, exedy still make a brass buttom option!!!! hahaha - That would be fun in a loaded up van!!!
Just like the liteace, this gearbox combo still retains a cable clutch system.

SHIFTER POSITION:
The W50 that I am using has the same shifter position as a ke70, so fitting one in a ke30-55 will require a bigger shifter hole.

TAILSHAFT:
The W50 GB is the same overall length as a K40/50, so no tailshaft shortening/lengthening is required. However the output spline is MUCH bigger and a corolla tail shaft needs to have the RA40 yoke transplanted onto it. This can be done with an old Holden (of all things) uni joint!!
(Pictures courtesy of Taz_rx)

[[Image:DSC03137.jpg]]

[[Image:DSC03138.jpg]]

[[Image:DSC03139.jpg]]

[[Image:100 1083.jpg]]

See also:

* http://www.rollaclub.com/board/index.php?showtopic=12935 (How To Fit A W50 To A K Series Motor)

'''W5X (Toyota Factory 5 Speed manual)'''

This option is probably a bit of an overkill for a K series motor, but by using the bell housing from a G5# 5speed van gearbox, KR42R (7kc/e powered) townace or KM3# etc, allows you to fit a W55, W56 etc celica/supra ALLOY CASE GB.
To do so you will need to use the townace flywheel, clutch kit, fork and retainer, as well as the slave cylinder as this is a HYDRAULIC ONLY clutch.
The townace 7k flywheel is still the same overall diametre as a corolla one, but has a bigger again 215mm clutch plate surface, so clutch dimentions are 215x29.8x21T, again here is the Exedy listing...
http://www.exedy.com.au/SpecSheet.aspx?SpreadsheetRowId=14829
Suprisingly again there is a brass button option.

Below is a W56 from a KR42R, still attached to a 7KC.

[[Image:W56.jpg]]

----

''Article by Medicine_Man / Taz_Rx / Xany / tojo2''

----

Back to [http://www.rollaclub.com/faq/index.php?title=Main_Page#K_Series K Series]

Back to [http://www.rollaclub.com/faq/index.php?title=Main_Page Main Page]

[http://www.rollaclub.com/ Rollaclub]

Tech:Engine/K Series/Manual Gearbox

2009-05-07T09:27:53Z

Xany: /* Oil Fill Quantities */

Corolla manual gearboxes are integral-bellhousing cable-clutch units called the K40 (4 speed) and K50 (5 speed). They are interchangeable over all models, with the only difference being gear ratio over year models, and the shifter position on the extension housing. KE1x have the shifter all the way forward, KE2x 3x and 5x have the shifter in the middle, KE7x have the shifter at the back. Most people tend to prefer the 7x shifting position, even when placed in the earier cars and a hole cut in the floor. Extension housings between 4 and 5 speed are not interchangeable. All K manuals have the same output shaft. If you're building a tough K motor and/or enjoy doing burnouts and giving your driveline a general hard time, K50s are reputed to be weaker than K40s, but some people disagree with this.

According to Toyota parts catalogs, some early 1974 KE35s came out with Celica T50 boxes and a bellhousing to adapt this to the K motor. These bellhousings are quite rare, but not entirely unattainable. A T40 or T50 will bolt into KE2x onwards Corollas, use the rear gearbox crossmember holes in the floorpan. You may have to space up and modify the gearbox crossmember and/or mount where the box joins the crossmember. T gearboxes will fit in factory-auto KE1x cars, manuals will need tunnel mods.

If, somehow, you make a K motor that is so tough it eats T50s on a regular basis, Conversion Components Ltd in New Zealand sell a kit to adapt a K motor to a W55 supra box. These are huge boxes, you're going to have to chop the tunnel in any Corolla you try stuff this box into.

= Oil Fill Quantities =

K40 - 1.7L
K50 - 2.45L
T40 & T50 - 1.5L

After you drain the oil, you can either crawl under your car and fill it through the actual filler hole on the side, or (much easier) you can pull the shifter out (undo the 4 bolts, not the circlip) and pour the oil in there slowly.

K40

Oil capacity: 3.0 lmp pints(1.7L)

Synchromesh on all Forward gears

Ratios:

* First Gear: 3.769:1
* Second Gear: 2.250:1
* Third Gear: 1.405:1
* Fourth Gear: 1.010:1
* Fourth TRD**: 1.5436:2
* Reverse Gear: 4.316:1

Applications:

* Most 4-speed RWD Tercel, Starlets and Corollas with K-series engines
* KM20 series LiteAces that were fitted with K-series engines had a standard K40 fitted with a column shifter
* Toyota Racing Development** has produced a fourth gear closer to third in Ratio

K50

Oil capacity:4.2 lmp pints(2.45L)

Synchromesh on all Forward Gears

Ratios:

* First Gear: 3.789:1
* Second Gear: 2.220:1
* Third Gear: 1.435:1
* Fourth Gear: 1.000:1
* Fifth Gear: 0.865:1
* Reverse gear: 4.316:1

Applications:

* Most 5-speed RWD Tercel, Starlets and Corollas with K-series engines.
* 1986 Corolla with 3A-U and 4A-U engines.
* KM20 series LiteAces were fitted with K50 transmissions to 4K and 5K engines as an option, and to the 7K as standard.

= Ratios =

Doug spotted that there are two different ratios across the series, listed below:

KE10, KE20, KE30, possibly KE55 w/ 4 Spd

1st 3.684
2nd 2.050 with 1K motor, 2.022 with 3K motor
3rd 1.383
4th 1.000
Rev 4.316

KE55 w/ 5 spd, KE70

1st 3.789
2nd 2.220
3rd 1.435
4th 1.000
5th 0.865
Rev 4.316

There were apparently no 5 speeds in KE10s or 20s.

from Helene & Matti's page
http://www.geocities.com/MotorCity/Pit/9975/dataBySubject/Gearboxes.html

<table border="1" width="100%" cellspacing="1" cellpadding="3">
<tbody>
<tr>
<td>type</td>
<td>reverse</td>
<td>1st</td>

<td>2nd</td>
<td>3rd</td>
<td>4th</td>
<td>5th</td>
<td>6th</td>
<td>weight</td>

<td>stock hp</td>
<td>applications</td>
</tr>
<tr>
<td>T40</td>
<td>-3.484</td>
<td>3.587</td>

<td>2.022</td>
<td>1.384</td>
<td>1</td>
<td>-</td>
<td>-</td>
<td>~24kg</td>

<td>105</td>
<td>82 Corona (3A), 83 Corona (1S/3T-E), 83 Carina (3A, some), 83 Celica (1S)</td>
</tr>
<tr>
<td>T50</td>
<td>-3.484</td>
<td>3.587</td>

<td>2.022</td>
<td>1.384</td>
<td>1</td>
<td>0.861</td>
<td>-</td>
<td>25.5kg</td>

<td>124</td>
<td>124 82-83 Carina (3A/1S/2T-GE/3T-E), 83 Celica (3T-E,2T-GE), 82 Corona (1S), 86 Corolla Levin (4A-GELU, 3A-U/4A-U some)</td>
</tr>
<tr>
<td>W55</td>
<td>-4.091</td>
<td>3.566</td>

<td>2.056</td>
<td>1.384</td>
<td>1</td>
<td>0.850</td>
<td>-</td>
<td>35kg</td>

<td>190</td>
<td>82-83 Carina/83+85 Celica/83 Corona (3T-GTE), 86 Soarer/Supra (1G-GE), Crown (1G-E some, 1G-GE, 6M-GE some, 2L/2L-T some), 83+85-86 Cressida/MarkII/Chaser (1S, 21R some, 1G-E some, 1G-GE, 2L/2L-T some)</td>
</tr>
<tr>
<td>W5*</td>
<td>-4.091</td>
<td>3.566</td>

<td>2.056</td>
<td>1.384</td>
<td>1</td>
<td>0.861</td>
<td>-</td>
<td>35kg</td>

<td>160</td>
<td>85 Carina/Corona (3T-GTE)</td>
</tr>
</tbody>
</table>

= T50 Differences =

from Helene & Matti's page
http://www.geocities.com/MotorCity/Pit/9975/dataBySubject/Gearbox_T50.html

From: Scott Davis (ssdavis1@coewl.cen.uiuc.edu)

There are three versions of the T-50 that I know of. One is pre 1979, and has a different bolt arrangement between the bellhousing and the gearbox. The 80-82 version has a the same bolt arrangement as the 83+ T-50's, but a different (smaller) output shaft diameter."

From: Claudio

"The tailshaft or gear shifter housing on the '80-87 T-50 transmission is longer than the '70-79 models by about 6". The main reason for this change was to bring the shifter further into the passenger compartment. I remember that in my pre '80s Corollas the shift lever came out from the lower part of the dashboard, compared to my later models where it comes out of the floor, just ahead of the seats.

If you run a car in competition, you may want to use the older transmission with the shorter shifter housing. The lever on these models acts directly on the shifter forks. The newer model's shifter must act through an additional linkage, which adds additional vagueness and is less durable, especially when ramming the lever during clutchless shifting. Most later model shifters ('80-87) with high mileage or hard use will be very loose. In almost all cases this looseness will be due to a collapsed nylon bushing on a ball joint at the end of shift lever in the transmission. This bushing cost less than $2US and is easy to replace. Warm the new component in hot water before popping it on the lever to prevent it from breaking.

The early model shifters don't have this problem because it doesn't use the extra linkage and everything is metal to metal, no bushings. If you are replacing this bushing, you might as well remove the other source of vagueness, the rubber bushing in the shift lever rod. It is located about half way down the shifter where the rod bulges. As the years progressed, from 1970 on, this rubber bushing got bigger and bigger in order to increase isolation (vagueness). With the engine off, try to pull the lever down into any gear with increasing pressure and see how much the lever flexes. This movement is due to the rubber bushing. If you truly want to "experience" your machine, remove the rubber bushing. I must warn you, though, that if you grind a gear badly, you will "feel" the mistake all the way up your arm and hurt along with your machine.

The best way to eliminate the rubber bushing is to: - remove the upper part of the lever with the bushing - weld a hollow tube to the bottom part of the lever - weld a stud to the end of the tube for your shift knob - while you're at it, why not make the lever 1" shorter for shorter throws

P.S. I believe that the only difference between the '80-82 (3TC) and '83-87 (4AG,3AC) transmissions were the bellhousing. You should be able to use a short tailshaft '70-79 (direct linkage) T-50 in '84-87 Corollas by using the bellhousing that came with the car. You would also have to cut the shifter hole further forward on the trans. tunnel and likely mix and match driveshafts halves."

= C-Series FWD Transmission/Transaxle =

The C-series transaxle is the transmission use in all FWD Corollas to date. Below are the variants available and their ratios.

<table border="1" width="100%" cellspacing="1" cellpadding="3">
<tr>
<td>Name</td>
<td>1st</td>
<td>2nd</td>
<td>3rd</td>
<td>4th</td>
<td>5th</td>
<td>6th</td>
<td>Notes</td>
</tr>
<tr>
<td>C50</td>
<td>3.545</td>
<td>1.904</td>
<td>1.310</td>
<td>0.969</td>
<td>0.815</td>
<td>-</td>
<td>AE82, AE92 (All), AE101 w/ 4A-FE</td>
</tr>
<tr>
<td>C52</td>
<td>3.166</td>
<td>1.904</td>
<td>1.310</td>
<td>0.969</td>
<td>0.815</td>
<td>-</td>
<td>AE102 w/ 7A-FE? AE92 GTi (4A-GE) AE101 Silvertop 20v 1st generation</td>
</tr>
<tr>
<td>C56</td>
<td>3.166</td>
<td>1.904</td>
<td>1.392</td>
<td>1.031</td>
<td>0.815</td>
<td>-</td>
<td>AE101 Silvertop 20v (2nd generation) & AE111 Blacktop 20v</td>
</tr>
<tr>
<td>C59</td>
<td>3.166</td>
<td>1.904</td>
<td>1.310</td>
<td>0.969</td>
<td>0.815</td>
<td>-</td>
<td>AE102 w/ 7A-FE?, AE112R (including Sportivo Turbo), Stronger version of C52?</td>
</tr>
<tr>
<td>C150</td>
<td>3.545</td>
<td>1.904</td>
<td>1.310</td>
<td>0.969</td>
<td>0.815</td>
<td>-</td>
<td>ZZE122R, Stronger version of C50? AE101 4E-FE (1300cc)</td>
</tr>
<tr>
<td>C151</td>
<td>3.545</td>
<td>1.904</td>
<td>1.233</td>
<td>0.885</td>
<td>0.725</td>
<td>-</td>
<td></td>
</tr>
<tr>
<td>C60</td>
<td>3.166</td>
<td>2.050</td>
<td>1.481</td>
<td>1.166</td>
<td>0.916</td>
<td>0.725</td>
<td>ZZE123R (Sportivo)</td>
</tr>
<tr>
<td>C65M</td>
<td>3.166</td>
<td>1.904</td>
<td>1.392</td>
<td>1.031</td>
<td>0.815</td>
<td>0.725</td>
<td>ZZE31 MR2 Spyder, this is the sequential tranmission</td>
</tr>
<tr>
<td>C160</td>
<td>3.166</td>
<td>2.050</td>
<td>1.481</td>
<td>1.166</td>
<td>0.916</td>
<td>0.725</td>
<td>AE111 20v Blacktop 6speed</td>
</tr>
<tr>
<td>C161</td>
<td>?</td>
<td>?</td>
<td>?</td>
<td>?</td>
<td>?</td>
<td>?</td>
<td>EE111 G6, this was a US spec Corolla with the 4E-FE</td>
</tr>
</table>

<hr>
[http://www.rollaclub.com/ Rollaclub]
[[Category: Drivetrain]]

Upgrades:Hilux Diff Conversion

2007-03-04T11:50:38Z

Xany:

Test