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Autopapyrus · Toyota Yaris (III generation, XP130)
https://autopapyrus.com/guides/toyota/yaris/manual-transmission-overhaul/
Compiled automatically from service literature and owner experience. Specs are for the typical configuration — check them against your exact car before you start.

Toyota Yaris (III generation, XP130): Manual Transmission Overhaul

This work is performed on the 5-speed manual transmission fitted to the Yaris XP130 with the 1NR-FE engine. It requires a clean workspace, measuring tools and a precise assembly sequence. The exact procedure and specification values for this transmission could not be found in openly available service materials, so only the general disassembly and inspection principles are given. Check tolerances, torque values and adjusting shim thicknesses against the manufacturer's service manual. If you have no experience with transmissions, it is safer to have the inspection and assembly done by a specialist shop.

Difficulty: Hard Time: 2-3 days (transmission removal and installation 4-6 hours, inspection and assembly 1-2 days) Steps: 14 Tools: lift or pit, transmission jack, socket and wrench set, torque wrench, bearing puller, press, snap ring set and snap ring pliers, drifts, dial indicator, micrometer, caliper, oil drain pan

Part

  • 🔩 manual transmission rebuild kit (shaft bearings, drive axle and shift shaft seals, snap rings), synchronizer set (synchronizer rings, hubs/sleeves and keys as determined by inspection), transmission case gasket or sealant, GL-4 75W-90 or 75W transmission fluid (in the quantity specified in the service manual for your transmission)
There's a full repair manual for this car Every system, wiring diagrams and torque specs — not just this job. Haynes and 7 more. See manuals →

Step by step

14 steps
  1. Determine whether a full overhaul is needed. Typical symptoms: whining or humming in specific gears (bearings), grinding when shifting (synchronizers), and the transmission jumping out of gear. First check the clutch, the release bearing and the fluid level. Drain the fluid and inspect it and the drain plug magnet: fine metal particles are acceptable, large chunks are not.
  2. Disconnect the negative battery terminal. Remove the air filter housing with its ducts, the battery and the battery tray. Disconnect the shift cable or linkage brackets and the clutch release actuator. If the actuator is hydraulic, do not open the hydraulic line unless necessary; it is better to unbolt the slave cylinder and move it aside.
  3. Disconnect the starter, the reverse light switch and speed sensor connectors, and the wiring harness mounts. Raise the vehicle, then remove the engine undercover and the front wheels. Drain the transmission fluid.
  4. Disconnect the drive axles from the transmission (lower control arms or ball joints; the inner joints pull out of the differential). Do not pull the CV joint out at an angle, and support the axles so the boots are not damaged. Plug the differential seal openings.
  5. Support the engine from above or below, then remove the transmission mount and the subframe or crossmember if they are in the way. Position the transmission jack, remove the bolts holding the bell housing to the engine, work the transmission off along the dowel pins and lower it carefully. Do not let the transmission hang by its weight on the input shaft.
  6. Inspect the clutch: disc, pressure plate, flywheel and release bearing. When the transmission is being overhauled, these are usually replaced as a set, since they are easily accessible.
  7. Bench disassembly. Clean the outside of the transmission. Remove the case cover, the shift mechanism and the forks, first photographing and marking the position of each part. Separate the case halves and remove the input shaft, output shaft and differential as a single assembly or in parts, depending on the design. Lay out all parts strictly in the order of removal.
  8. Shaft disassembly. Remove the snap rings and take off the gears, synchronizers and bearings step by step. For press-fit bearings, use a press and a puller, not a hammer. Note the orientation of the synchronizer hubs/sleeves and keys.
  9. Inspection. Replace all bearings, as well as the seals and snap rings. Synchronizers: measure the clearance between the ring and the gear with a feeler gauge (tolerance per the service manual), check the cone for wear, the blocking ring teeth for rounding, and the keys and springs for fatigue. Check the gears and gear teeth for chipping and pitting, and the shaft journals for scoring and wear. A worn shaft or gear must be replaced; it cannot be repaired.
  10. Assembly. Lubricate all parts with transmission fluid. Press bearings in only by the seating race. Install the synchronizer rings, secure the snap rings, and check the gear end play with a feeler gauge. If adjusting shims or rings are being selected, do so based on measurements, and take the values from the manufacturer's service manual. Assemble the permanent case joints with new sealant or a new gasket.
  11. Pre-installation check. Engage each gear by hand while turning the input shaft: shifts should be crisp, and the shaft should turn without binding or noticeable noise. Install new drive axle seals in the case, lubricating the lips.
  12. Transmission installation. Apply a thin layer of high-temperature grease to the input shaft splines, mate the transmission to the engine without putting load on the shaft, and tighten the bell housing bolts to the specified torque. Then install the mounts, the subframe, the starter, the drive axles (with new snap rings and with the hub nuts tightened to the specified torque), the cables and the connectors.
  13. Fill with GL-4 fluid up to the lower edge of the fill hole. Check the clutch operation and bleed the actuator if it is hydraulic. Take a test drive without load, check for noise and case leaks, and recheck the fluid level.
  14. Break-in. For the first 500-1000 km (300-600 miles), avoid hard launches and heavy loads, and shift gears smoothly. It is recommended to change the fluid in the rebuilt transmission after the break-in period.

Common mistakes and warnings

  • Working under the vehicle with a heavy component requires reliable supports and safety backup: do not work under the car supported by a jack alone. Incorrect assembly (a cocked bearing, wrong adjustment) quickly causes the transmission to fail again. If you have no experience and no measuring tools, have a specialist shop disassemble and reassemble the transmission, and do the removal and installation yourself. In most cases, when the synchronizers are worn, the repair cost is comparable to buying a used transmission, so compare both options.
How it works · 3D How a Manual Transmission Works How the part you're working on actually works — in plain English, on a 3D model. Open in 3D →