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Nissan Skyline R32 engine factory workshop and repair manual download

- Applicability
- If your Skyline R32 has a manual transmission: a transmission fluid pressure test is not applicable — manuals do not have hydraulic line pressure the way automatics do.
- The procedure below applies to automatic transmissions only. Exact pressure-port location and pressure specs vary by transmission model — consult a factory or aftermarket service manual for your exact model when possible.

- Essential tools (detailed descriptions and how to use them)
- Transmission pressure gauge and adapter kit (universal kit, 0–300 psi or 0–500 psi)
- Description: a mechanical or digital gauge with hose and multiple threaded / quick‑connect fittings to mate to a transmission test port or cooler line.
- How to use: choose the fitting that matches the transmission test port or the cooler hose fitting, attach the adapter to the transmission or cooler line, connect the gauge hose, hand‑tighten and secure with the kit’s fittings. Read the gauge while engine is running; avoid overpressure.
- Transmission cooler line adapter
- Description: a fitting that temporarily replaces or inserts into a cooler line so the gauge can read pressure if no dedicated test port exists.
- How to use: remove one cooler line at the radiator/trans cooler connection, insert the adapter inline, clamp/secure, then connect the gauge hose to it. This is common when the transmission lacks a convenient test port.
- Metric socket set and ratchet (including deep sockets)
- Description: 8–19 mm sockets, extensions, and a ratchet handle.
- How to use: remove transmission pan bolts, access panels, or cooler line fittings; use correct socket size to avoid rounding bolts.
- Wrenches (flare nut wrench if working cooler fittings)
- Description: open/box end metric wrenches and at least one flare‑nut wrench for fragile fittings.
- How to use: use flare‑nut wrench on transmission cooler fittings to avoid rounding the nut.
- Screwdrivers and pry tools
- Description: flat and Phillips screwdrivers, plastic pry tool.
- How to use: remove clips, pry pan edge gently if stuck.
- Floor jack and jack stands (or a lift)
- Description: rated floor jack and quality jack stands — never rely on the jack alone.
- How to use: jack car on secure jacking point, place stands under specified points, lower onto stands. Chock wheels and engage parking brake.
- Drain pan and collection container
- Description: deep oil/drain pan to catch ATF.
- How to use: place under pan or cooler line to collect fluid when lines are opened or pan removed.
- Gloves, safety glasses, shop rags
- Description: nitrile gloves, eye protection.
- How to use: protect hands/eyes from hot ATF and debris.
- Funnel and fresh ATF (manufacturer-specified type)
- Description: correct spec transmission fluid for your Skyline (check manual or cap label).
- How to use: top up fluid after test if fluid drained; use funnel to avoid spills.
- Torque wrench (recommended)
- Description: calibrated torque wrench in appropriate range.
- How to use: torque pan bolts, cooler fittings, and any adapter fittings to correct spec to prevent leaks.
- Thread sealant or Teflon tape (for adapter threads only if required)
- Description: PTFE tape or thread sealant rated for oil.
- How to use: use sparingly on adapter threads if the kit/instructions call for it; avoid getting sealant inside fluid passages.
- Service manual or factory wiring/diagram (strongly recommended)
- Description: shows test port location, pressure specs, and procedure for your transmission model.
- How to use: verify port location, torque specs, and pressure targets.

- Optional / extra tools and why they may be required
- Dedicated transmission test port adapter for your Nissan transmission model
- Why: some transmissions have a specific threaded port; a vehicle‑specific adapter gives a leak‑free, correct mating.
- Line disconnect tools (quick‑connect tool)
- Why: many cooler lines use quick‑disconnect fittings that require a special tool to release without damage.
- Mechanical tachometer or OBD reader that shows RPM/temperature
- Why: to hold exact engine RPM when reading pressure or to monitor ATF temperature.
- Infrared thermometer or ATF temperature probe
- Why: pressure readings must be taken at operating fluid temperature — having a temp reading ensures you are in the correct range.

- Preparations and safety (do these before any testing)
- Work on level ground, set parking brake, chock wheels, and block wheels opposite the jack side.
- Wear eye protection and gloves; avoid open toes or loose clothing.
- Warm vehicle to normal operating temperature by driving for 10–15 minutes; warm ATF gives accurate pressures.
- Lift and support the car on jack stands if needed to access the pan/cooler lines; never work under a car supported only by a jack.
- Keep a fire extinguisher nearby and avoid sparks — ATF is flammable.
- Have rags and absorbent material ready for spills and a container to collect used fluid.

- Procedure (general, use factory manual for exact port location/specs)
- Locate the transmission pressure test port or cooler line access point using the service manual or by visually inspecting the transmission housing and cooler lines.
- If a factory test port is present:
- Clean the area around the port to avoid contamination.
- Remove the plug (usually a square head or threaded plug) using the appropriate tool.
- Choose the correct gauge adapter from your kit, apply thread sealant if required by the kit, and hand‑thread the adapter into the port; snug with a wrench — do not over‑torque.
- Connect the gauge hose and secure fittings.
- If no test port exists, use a cooler line adapter:
- Place the drain pan under the radiator/trans cooler connection area.
- Carefully disconnect one transmission cooler line at the radiator or cooler (use quick‑disconnect tool if needed). Expect ATF to drain; capture it.
- Install the inline adapter between the cooler and hose, secure clamps, and connect the gauge hose to the adapter.
- Start engine with transmission in Park or Neutral (follow kit manual). Do not let anyone put the car in gear while you are under it.
- Observe the gauge at idle and note the reading once stabilized. Monitor for leaks.
- Increase engine RPM to specified test points (e.g., 1500–2000 rpm) and note pressures. Shift the selector through Park/Reverse/Neutral/Drive and note pressures in each position if required by the manual.
- If instructed by the manual, apply load/stall test (torque converter stall) — only if you have the correct equipment and a safe setup; do not perform if inexperienced.
- After completing tests, shut off engine, release pressure by switching to Park and allowing engine off, then disconnect the gauge and adapters, reinstall test port plug (use new crush washers/O-rings if present), or reconnect cooler line with new O‑ring/seal if removed.
- Clean any spilled fluid, top up ATF to the correct level with engine running and at operating temp if necessary, and check for leaks.

- How to use the tools during the test (concise)
- Gauge: connect, purge air, read when stabilized; avoid jerking hose.
- Adapter kit: match thread types, hand‑start threads, tighten to snug; use thread sealant per kit instructions.
- Jack/jack stands: lift at manufacturer jacking points, lower onto stands slowly, ensure stands contact solid points under chassis/transmission crossmember.
- Socket/wrench: remove/install sensors, plugs, or pan bolts; use correct size and torque.
- Drain pan/funnel: catch fluid when lines are open; reuse or dispose per local regulations.

- Interpreting results (basic)
- Consult the service manual for exact pressure specifications by RPM and gear selection.
- General indicators:
- Pressure within specified range: hydraulic pump and main pressure circuit likely healthy.
- Low pressure across RPMs: possible worn pump, internal leakage, low fluid level, clogged filter, or failing valve body.
- Sharp pressure drop when shifted into gear: problem with valve body, seals, or clutches.
- Intermittent spikes or erratic readings: stuck valve, faulty pressure regulator, or gauge/adapter leak (verify setup).
- If fluid is burnt, smells, or contains metal shavings: internal wear/damage likely; inspect pan for debris and consider internal repair/rebuild.

- Possible replacement parts and why they may be required
- Transmission fluid (ATF)
- Why: contaminated, burnt, or low fluid causes incorrect pressure and slipping; replace with correct spec.
- Transmission filter and pan gasket
- Why: clogged filter reduces flow and pressure; gasket replacement prevents leaks if pan removed to inspect filter.
- Cooler line O‑rings / seals
- Why: leaking cooler connections will lower system pressure and cause loss of fluid.
- Pressure test port plug / crush washer / O‑ring
- Why: reuse of old sealing parts can leak after testing; replace to ensure a proper seal.
- Pressure sensor / switch (if equipped)
- Why: if electronic pressure readings are incorrect but mechanical gauge shows good pressure, sensor may be faulty.
- Valve body (or valve body solenoids)
- Why: sticking valves or bad solenoids can cause incorrect pressures and gear engagement problems.
- Transmission pump or internal seals/clutches (rebuild kit)
- Why: if pressure is consistently low and not caused by filter/cooler/valve body, internal pump wear or clutch pack wear may require rebuild or replacement.

- When to seek professional help (brief)
- If you cannot find a test port or safely fit an adapter, if you get leaks you cannot stop, if pressure is out of spec and you are not prepared to diagnose internal transmission components, or if a stall/load test is required — have a qualified transmission shop continue.

- Waste & cleanup
- Contain and properly dispose of used ATF per local hazardous waste rules. Clean spilled fluid promptly to avoid slip hazard and fire risk.

- Final note
- Exact port locations and pressure specifications vary by model; a factory service manual or transmission data sheet for your R32’s transmission model is strongly recommended to complete safe and accurate testing.
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