Summary: This is a significant engine modification that requires planning, correct parts, accurate fitting, and an ECU/diesel control unit remap. Below is a concise, step‑by‑step technician’s procedure for adding a belt‑driven supercharger to a Renault F9Q1 / F9Q2 2.2L diesel. Follow a workshop manual for torque specs and timing marks. Use proper PPE and have a dyno/tuning shop handle the final fuel/timing calibration.

Required parts (typical, depending on kit and target boost)
- Complete supercharger unit (Roots/TVS or centrifugal kit designed for inline‑4 installation) with drive pulley and internal oil reservoir if applicable
- Supercharger mounting brackets (kit specific) and spacers
- Intake manifold adapter or custom plenum for the supercharger outlet
- Intercooler (air-to-air preferred) with mounting hardware
- Piping, silicone couplers, clamps, and boost hoses
- Oil feed line and return/drain line (AN fittings or OEM specified)
- Bypass/wastegate-style recirc valve or electronic bypass for diesel application
- High‑pressure fuel pump upgrade and higher‑flow injectors (depending on boost target)
- Head studs (ARP) or upgraded head bolts if boosting beyond stock parameters
- Upgraded clutch/flywheel (if manual) or torque converter if automatic (to handle increased torque)
- Engine oil cooler and/or transmission cooler (recommended)
- Boost gauge, EGT sensor, intake air temp sensor, and wideband AFR (for diesel use EGT and smoke/torque monitoring)
- ECU remap or piggyback capable of increasing fueling and controlling boost safely
- New serpentine/drive belt sized for extra pulley load; new idler/tensioner pulleys as required
- Replacement gaskets, threadlocker, antiseize, coolant and engine oil (plan for fluid changes)

Essential tools
- Full metric hand tool set (sockets, ratchets, extensions)
- Torque wrench (capable to workshop specs)
- Engine support bar or hoist (for motor mount removal/clearance)
- Pulley puller/installer set
- Belt tensioner tool or breaker bar for tensioning
- Drill/tap set (only if oil feed/drain threads must be custom made)
- Tubing cutters, hose clamp pliers, and pliers
- AN wrenches (if using AN fittings)
- Vacuum/pressure tester (for checking boost leaks and intake vacuum lines)
- Oil prime pump (hand prime tool for supercharger) or suction device to pre‑fill supercharger gearbox
- Multimeter, OBD-II interface and laptop with tuning software or data logger
- Jack stands, ramps, PPE (glasses, gloves), fire extinguisher

Safety & preparatory precautions
- Work in a well‑ventilated, level workshop. No smoking.
- Disconnect negative battery terminal before major work.
- Support vehicle on ramps or stands; use wheel chocks.
- Drain coolant and, if supercharger requires, drain engine oil for planned replacement after initial runs.
- Relieve fuel system pressure per factory procedure.
- Use torque wrench on all fasteners to manufacturer spec; when in doubt consult F9Q service manual.
- Protect the turbocharger system (the F9Q is originally turbocharged) — depending on strategy you may remove, retain, or modify the stock turbo. Decide before starting.

Step‑by‑step procedure (typical bolt‑on kit workflow)
1) Planning and inspection
- Verify kit fits F9Q intake/exhaust area; inspect clearance for intercooler, piping, and belt path.
- Determine fueling and cooling upgrades required for your boost target. Plan for ECU tuning prior to dyno runs.

2) Remove obstructing components
- Disconnect battery.
- Remove intake plumbing from airbox to turbo inlet if interfering; remove plastic engine covers and/or alternator if required for bracket access.
- If necessary, support engine and remove motor mount to gain bracket clearance.

3) Install supercharger mounting brackets
- Fit supplied brackets to the cylinder head or block per kit instructions.
- Clean all mounting surfaces, use supplied spacers and threadlocker per kit.
- Torque bracket bolts to specified values.

4) Fit supercharger and alignment
- Mount the supercharger to its brackets loosely. Fit drive pulley and align with crank pulley using straightedge.
- Install any idler pulleys required by the kit. Ensure all pulleys are coplanar; misalignment causes belt slip and premature bearing failure.
- Tighten supercharger mounting bolts to spec once alignment confirmed.

5) Drive belt installation and tensioning
- Route belt around crank pulley, idlers and supercharger pulley per kit diagram.
- Use belt tensioner tool or set tensioner to specified tensioning procedure.
- Check belt tracking and clearance at full crank rotation by hand (turn engine over with wrench on crank pulley).

6) Oil feed and drain plumbing (if supercharger requires lubrication)
- Identify a pressurized oil feed source (typically an oil gallery bolt on the head or block). Use manufacturer‑approved fitting/adapter.
- Fit braided oil feed line with AN fittings, torque fittings correctly.
- Run gravity/return line to the oil pan via dipstick tube adapter or dedicated boss as specified. Ensure return line has full‑gravity downhill run; do not create siphon.
- Prime the supercharger gearbox with oil using the provided hand pump or by cranking engine with fuel disabled (check kit instructions). Confirm oil pressure/flow.

7) Intake/intercooler piping
- Install intercooler in front of radiator or in an appropriate location ensuring airflow.
- Fit silicone couplers and clamps between supercharger outlet, intercooler, and intake manifold adapter/plenum.
- Install bypass/recirc valve between supercharger outlet and inlet or to atmosphere as kit specifies (diesels should recirculate).

8) Fuel and air control upgrades
- Fit upgraded high‑pressure fuel pump and higher‑flow injectors if required. On modern CR diesel systems, injector selection and pump capacity are critical.
- Install boost reference lines and sensors to ECU or boost controller as required.
- Fit EGT sensor(s) in the exhaust manifold/collector before tuning.

9) Sensors, wiring and ECU
- Connect intake air temp sensor and MAP sensor plumbing to the supercharged intake as required.
- Ensure wiring for sensors is secured away from heat and moving parts.
- Prepare ECU remapping: either remap ECU for increased fueling and timing appropriate to boost target, or arrange a custom tune on dyno.

10) Re‑assembly and checks
- Refill engine oil and coolant (replace filters as needed).
- Reconnect battery.
- Check all fasteners, hoses, clamps, and electrical connections one final time.
- Rotate engine by hand several turns to ensure no interference.
- Start engine, idle and inspect for oil leaks, boost leaks, unusual noises, belt slip.

11) Initial testing and tuning
- With logging tools connected, run the engine at low load and verify oil pressure to supercharger.
- Do not load the engine hard until proper fueling and tuning done: diesel engines can overheat or suffer head/gasket damage if fueling is incorrect.
- Take to dyno for staged tuning: start with conservative fueling and boost limits, monitor EGTs, smoke, boost, and injector duty cycle.
- Gradually increase boost only once fueling and EGTs are safe. Adjust fueling map, EGR/DPF strategies if present.

Common pitfalls and how to avoid them
- Fueling mismatch: boosting without adequate fuel causes high EGTs and component failure. Always upgrade pump/injectors or keep boost conservative and get a dyno tune.
- Head gasket failure: diesel cylinder pressures are very high. Use head studs and torque correctly if planning moderate to high boost.
- Oil starvation to supercharger: ensure correct feed pressure and return path; avoid sharp rises in return line that trap oil.
- Belt alignment and slip: improper pulley alignment or wrong belt tension causes slipping and bearing damage. Check alignment after initial run.
- Boost leaks: any leaks cause poor performance and incorrect sensor readings. Pressure test intake system with soapy water or a boost leak tester.
- Excessive EGTs: watch EGTs closely; rising EGTs indicate insufficient fuel or timing issues. Reduce boost immediately if EGTs climb.
- Intercooler airflow and heat soak: undersized intercooler will cause high intake temps, reducing density and raising EGTs—fit a properly sized core and mount for airflow.
- ECU incompatibility: modern diesels may require an expert remap to safely control fueling, turbo control, and emissions systems.
- Ignoring drivetrain upgrades: stock clutch, gearbox or driveline parts may not handle increased torque—upgrade accordingly.

How to use specific tools (short)
- Torque wrench: use calibrated wrench; tighten fasteners to specified sequence/values. Do final torque in stages.
- Pulley puller/installer: use to remove/install crank or idler pulleys without damaging shafts; follow tool instructions and protect faces.
- Oil prime pump: attach to supercharger oil fill and pump the gearbox until oil is visible at the return port; prevents dry start bearing damage.
- Vacuum/pressure tester: pressurize intake plumbing to working boost (low psi) and listen/feel for leaks; use soap spray to find leak sites.
- Multimeter/OBD interface: monitor sensors and ECU parameters while cranking and running; check for fault codes before/after.

When to replace internal parts
- If planning moderate-to-high boost (>0.4–0.6 bar) replace head studs and consider forged pistons and upgraded rods.
- Replace clutch/flywheel if slip is suspected during testing.
- Upgrade fuel pump/injectors for any significant increase in fueling demand.
- Replace old turbocharger if retaining or integrating with supercharger (twincharging) and it’s worn.

Final notes (no yapping)
- Follow kit manufacturer instructions and Renault/Mitsubishi service manual torque and sequence data for the F9Q engines.
- Have a professional dyno tune finish the job and verify safe EGTs, fueling and boost control.
- Safety first: if you are not experienced with diesel ECU tuning or precision fitting, use a specialist.

End.
rteeqp73

Надежный или неудачный? Разбираем все проблемы дизел... Двигатель F9Q, появившийся в 1997 году на Renault Megane, стал первым французским дизелем с непосредственным ...

Mitsubishi Space Star 2003 год 1.9 дизель

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