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Toyota 5S-FE engine factory workshop and repair manual download

Tools & consumables needed
- Full metric hand tool set (sockets 8–24 mm, ratchets, extensions), breaker bar, combination wrenches.
- Torque wrench (range to 200 Nm).
- Transmission jack or heavy-duty floor jack + support.
- Engine support or second jack if supporting engine.
- Drain pan, fluid pump.
- Screwdrivers, pry bars, punches (brass/soft) and plastic mallet.
- Snap‑ring / circlip pliers (internal + external).
- Hydraulic/arbor press (1–5 ton) or dedicated bearing press.
- Bearing puller / gear puller (2‑ or 3‑arm), slide hammer.
- Bearing/bush driver set and seal driver set.
- Dial indicator with magnetic base (to check endplay / runout).
- Micrometer / calipers and feeler gauges.
- Bench vise with soft jaws.
- Cleaning solvent, lint‑free rags, compressed air.
- Assembly lube (sticking grease), thread locker (as OEM), transmission fluid for assembly test.
- New gaskets, seals, snap rings, planetary kit (planet gears, planet carrier, sun gear, ring gear if required), bearings/needle rollers, thrust washers, bushings, O‑rings, filter, pan gasket.
- Factory Service Manual (FSM) for your exact Toyota transmission model (shows torque specs and clearance tolerances).

Safety first
- Work on a flat level surface. Use jackstands rated for vehicle weight; never rely on a jack alone.
- Disconnect battery to avoid starter engagement and electrical shorts.
- Wear safety glasses, gloves, and steel‑toe boots.
- Drain fluid into approved container; dispose properly.
- Use transmission jack for removal and installation to avoid crushing injuries.
- When using a hydraulic press, keep hands clear, use appropriate adapters and guards. Stand to one side while pressing.

Overview / notes
- “Planetary gear repair” in a Toyota with 5S‑FE generally means repairing the automatic transmission planetary assemblies (front/mid/rear sets depending on the transmission). Procedures below are generic but detailed; always cross‑check torque and clearance specs with your FSM for the specific transmission model (A340E, A343F, A245E, etc.). Replace all snap rings, thrust washers, needle bearings and seals if wear is found or anytime you disassemble the set.

Step‑by‑step procedure

1) Vehicle prep & transmission removal
- Park, chock wheels, disconnect battery.
- Raise vehicle and support securely on jackstands. Remove skid plates or exhaust as needed for access.
- Drain transmission fluid through pan (remove bolts gradually, let fluid drain), remove pan and filter; this reduces weight/drain before drop.
- Disconnect shift linkage, speedometer cable/sensor, electrical connectors, cooler lines (plug lines to avoid contamination).
- Remove driveshaft/axles as required.
- Support transmission with transmission jack. Remove starter as needed, unbolt torque converter bolts to flexplate if accessible (some Toyota designs leave torque converter bolted to flywheel; follow FSM).
- Remove transmission mount(s) and crossmember.
- Carefully slide transmission back on the jack to disengage torque converter from flexplate (for some transmissions you rotate converter to align). Lower transmission clear of vehicle.

2) Bench prep & draining / cleaning
- Clean exterior of transmission to avoid dirt entering case.
- Remove remaining fluid and drain pan completely.
- Remove front pump/bellhousing bolts as indicated in FSM to split case. Keep bottom case supported on bench. Lay out bolts on a labeled tray in order.

3) Case split & initial disassembly
- Separate case halves per FSM. Use pry points; avoid deforming case with large levers – use small gradual prying and some tapped wood blocks if needed.
- Remove input shaft/turbine and clutch assemblies per FSM. Keep noting orientation and order of plates, friction/disc orientation. Photograph as you go for reassembly reference.
- Remove snap rings and retaining clips that hold planetary carriers and ring gears. Use internal/external snap‑ring pliers; beware of ring tension — control them and remove slowly.
- Identify which planetary assembly is faulty (noise, wear, broken gear). Often failure shows as broken planet gear teeth, chipped sun gear, worn ring gear, flattened rollers or collapsed needle bearings.

4) Removing planetary carrier / gears
- Remove the carrier assembly: unbolt carrier-to-case bolts if present. For press‑fitted bearings, use a press or puller.
- To remove a gear secured on a shaft or bearing:
- Use a bearing puller or appropriate press adapter that contacts the inner race only (if possible). Support the carrier on a block or in a press cradle to avoid distortion.
- If gear is stuck, apply heat to the gear (torch, but controlled – 150–200 °C typical) to expand metal slightly; do not overheat and damage bearing seals. Use penetrating oil sparingly and allow to soak.
- When using a hydraulic press: position the press ram so load is centered on the part being pressed off, use adapter plates to spread force evenly. Press slowly and monitor for binding. Use blocks to support the carrier so the press force removes the gear without bending.

How to use specific tools
- Snap‑ring pliers: install tips into ring holes, squeeze/expand gently while pulling ring out from groove. For internal rings, compress; for external, expand. Keep control — rings can fly off.
- Bearing puller: attach jaws behind the part’s edge or hook inner race. Tighten center bolt slowly while keeping puller centered. Use penetrating oil and heat if needed.
- Hydraulic press: use support blocks under the part, align center of force with shaft axis. Use mandrels/adapters sized to bearing/gear ID or OD so force transfers evenly. Press at low pressure. For installing bearings, press on race using driver to avoid damaging rollers.
- Dial indicator: mount magnetic base to rigid part of case; contact indicator tip to gear face or carrier lip. Set pointer to zero, push/pull gear axial to measure endplay; rotate to check runout. Compare to FSM spec.

5) Inspection & measurements
- Clean all parts thoroughly with solvent and compressed air.
- Inspect gear teeth for wear, pitting, chipped/broken teeth, discoloration (overheat).
- Inspect planet carrier for cracked webbing and bearing bores for out‑of‑round.
- Check needle bearings and roller bearings for scoring, flat spots, and lateral play.
- Measure gear tooth thickness and runout if possible; check bore diameters and bearing fits with micrometer/calipers.
- Check endplay (axial clearance) of planetary carrier assemblies with dial indicator. Compare to FSM limits. Typical rejection: excessive axial/play or bearing play.

6) Replace parts as required
- Replace any gear with chipped/broken teeth, sun gear with damaged splines, ring gear with worn teeth, planet bearings or needle rollers with worn rollers, thrust washers/bushings showing wear, snap rings that are deformed, and all seals/gaskets in the area opened.
- Common recommended replacements: complete planetary kit (planet gears, pins, carriers), needle bearings, thrust washers, snap rings, ring gear if worn, case seals and O‑rings, filter, pan gasket.
- Always replace filter, pan gasket, and at minimum all soft parts (seals/valves) when opening a transmission.

7) Reassembly of planetary assembly
- Pre‑lubricate bearings, bushings, and gear surfaces with assembly lube or clean ATF.
- Assemble planet gears into carrier with new thrust washers/needle bearings in correct orientation per FSM.
- Install planet pin retaining snap rings; ensure they fully seat into grooves — use a light application of clean grease to hold washers in position as you work.
- Press new bearings onto carrier and sun gear as required using press and appropriate drivers. Press on the inner/outer race as required (never press on rollers).
- Install sun gear into carrier and check free rotation and endplay.
- Install ring gear into case; ensure ring gear seating is correct and snap rings are engaged.

8) Checking endplay/runout & clearances
- With planetary assembly installed into case, use dial indicator to measure axial endplay of the carrier and sun gear per FSM. Typical procedure: hold gear firm, move carrier axially and record movement. Adjust shims if needed to bring into spec (many Toyota transmissions use specific shim thicknesses between carrier and case).
- If endplay is out of spec, replace shims or change thickness of thrust washers/bearings as required.
- Check backlash and gear meshing visually and by rotating assembly; ensure no binding.

9) Final reassembly of transmission
- Reinstall pumps, clutch packs, separators, sprags, valves per the reverse order of disassembly, following FSM torque specs and lubrication points.
- Replace any seals at case split, apply new gasket or RTV as specified.
- Torque all case bolts in sequence and to spec.
- Reinstall torque converter (pre-fill with ATF to a level—check FSM) and ensure it fully engages input shaft splines and torque converter stubs engage pump seals. Some designs require rotating converter until it drops into place on the pump; you should feel 2–3 distinct engagements before it seats fully.
- Reinstall transmission into vehicle, reconnect linkages, cooler lines, wiring, driveshaft/axles, and mounts. Torque bolts to spec.

10) Fill, bleed, and test
- Refill transmission with correct Toyota ATF type to the specified amount.
- Start engine, let warm to operating temperature, cycle through all gears to circulate fluid and seat clutches. Check for leaks.
- Road test with careful up/downshifts; check for noise, slipping, or harsh engagement.
- Recheck fluid level hot (per FSM procedure) and top off.

Common pitfalls & how to avoid them
- Not using FSM specs: torque, shim thickness, and clearance specs vary by transmission—always consult the FSM.
- Reusing soft parts: reusing old thrust washers, seals, snap rings, or bearings leads to premature failure. Replace them.
- Wrong snap ring orientation or missing rings: double‑check ring seating; missing ring can cause catastrophic failure. Use new rings; inspect grooves for burrs.
- Pressing on the wrong surface: pressing on gear teeth or roller surfaces will destroy bearings. Always press on the race or use correct driver.
- Improper heating: excessive heat damages temper of gears; if heating to remove, keep temps controlled and use a heat gun or controlled torch with thermometer if possible.
- Contamination: dirt or metal debris in transmission will ruin clutches and valves. Clean thoroughly, use lint‑free rags, and keep parts covered.
- Incorrect torque & pattern on case bolts: can warp case and cause leaks. Use proper torque sequence and values.
- Not checking endplay or backlash: improper clearances cause whining, premature wear, or seizure; measure and adjust.
- Failing to fully seat torque converter: if not fully engaged, pump damage occurs on startup.
- Not replacing filter/pan gasket: contaminants remain, leading to rework.

When to replace entire carrier vs individual parts
- If planet gear teeth, carrier webbing, or sun/ring gear have cracks or substantial wear, replace the entire carrier or ring gear assembly.
- If needle rollers are damaged but gear teeth are good, replace rollers/bearings and bushings.
- Cost/availability: often buying a planetary kit or remanufactured carrier is faster and safer than individual hard‑to‑source parts.

Final reminders
- Use OEM or high‑quality aftermarket parts.
- Record and photograph every step to ensure correct reassembly.
- If unsure of any clearance or torque spec, refer to the Toyota FSM — do not guess.

This is a procedural outline suitable for an experienced technician. Follow the FSM for the exact Toyota transmission model paired with the 5S‑FE for torque numbers, shim sizes, and precise inspection limits.
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