Crosstour - Water Pump Replacement 🔧

I’ll walk you through the OEM-style procedure for your EX-L V6 (J35Y5) with AWD. This engine uses a timing belt-driven water pump. The pump is replaced with the timing belt off, so it’s the right time to do the full belt service.

Quick questions (answer and I’ll tailor details):

• ✅ Are you okay replacing the timing belt, tensioner, and idler while we’re in there? Highly recommended.
• ✅ Do you have sturdy jack stands (supports the car safely) and a floor jack (raises the car) available?

Parts You’ll Need 📦

• 🧩 Water pump (with gasket/O-ring; Honda J35)
• 🧩 Timing belt kit (belt, hydraulic tensioner, idler pulley)
• 🧩 Thermostat + gasket (optional but smart)
• 🧩 Accessory (serpentine) belt
• 🧩 Coolant: Honda Type 2 premix (blue), ~2.5–3.0 gal for refill/bleed
• 🧩 RTV sealant (small dab at timing cover joints if needed)
• 🧩 New crank pulley bolt (one-time-use; strongly advised)

Tools Required 🛠️

• 🛡️ Safety: safety glasses, gloves, fender cover
• 🔩 Socket set 10–19 mm, deep and shallow, 3/8" and 1/2" drive
• 🔧 Wrenches 10–19 mm
• 🌀 Torque wrench (click-type; measures tightening force)
• 📏 Breaker bar 1/2" drive (long handle for stubborn bolts)
• 🎯 Honda crank pulley holding tool (holds the crank pulley to remove its bolt)
• ⚙️ 3-jaw puller or pulley remover (if the crank pulley is stubborn)
• 🧰 Floor jack and jack stands (support points: front subframe)
• 🧲 Engine support: floor jack with wood block under oil pan (when removing the right engine mount)
• 🧼 Coolant drain pan and funnels
• 💡 Pick tool (small hook; helps remove O-rings/gaskets)
• 🧪 Brake cleaner and rags (to clean sealing surfaces)

Key Torque Specs 📏

• 🧷 Crank pulley bolt: 47 lb-ft, then +60°, then +60° (use new bolt)
• 🧷 Water pump bolts: 9 lb-ft
• 🧷 Timing belt tensioner mounting bolts: 16 lb-ft
• 🧷 Idler pulley bolt: 33 lb-ft
• 🧷 Right engine mount to body: 40 lb-ft; mount bracket to engine: 40 lb-ft
• 🧷 Tensioner pulley (if separate): 33 lb-ft
• 🧷 Accessory belt tensioner: 33 lb-ft (mounting)
• 🧷 Timing cover bolts: 9 lb-ft
• 🧷 Thermostat housing: 9 lb-ft

Safety First ⚠️

• 🛑 Disconnect the negative battery cable (prevents accidental starts).
• 🧊 Work on a cool engine. Hot coolant can burn.
• 🧱 Always support the vehicle with jack stands on solid ground. Never rely on the jack alone.

Procedure (Beginner-Friendly) 🧭

Tip: Take phone photos as you go. Label bolts in small bags.

• 🔧 1) Prepare
  • Lift the front passenger side slightly. Remove the right front wheel and the plastic splash shield inside the fender (10 mm clips/bolts).
  • Place a drain pan. Open radiator drain (bottom) and the reservoir cap. Drain coolant.
  • Remove the engine cover and the air intake ducting as needed for access.
• 🔧 2) Remove accessory belt
  • Use a wrench on the belt tensioner (spring-loaded pulley that keeps the belt tight) to relieve tension and slide the belt off. Note the routing.
• 🔧 3) Remove crank pulley
  • From the fender opening, fit the Honda crank pulley holder into the pulley. Use a breaker bar and 19 mm socket to remove the center bolt. It’s tight—steady pressure works best.
  • Wiggle or pull the crank pulley off. Use a 3-jaw puller if stuck. Don’t pry against the timing cover.
• 🔧 4) Support engine and remove right engine mount
  • Place a floor jack with a wood block under the oil pan to support the engine gently.
  • Remove the right engine mount and bracket bolts. Note their locations. This creates room to remove the timing covers.
• 🔧 5) Remove timing covers
  • Unbolt the upper and lower plastic timing belt covers (10 mm). Inspect for oil leaks inside—fix before reassembly if found.
• 🔧 6) Set engine to Top Dead Center (TDC)
  • Install the crank bolt finger-tight to turn the engine by hand.
  • Rotate clockwise until the crank sprocket mark aligns with the pointer on the oil pump and both cam pulley “UP” marks are at the top and timing lines align with the rear covers.
• 🔧 7) De-tension and remove timing belt
  • Loosen and remove the hydraulic tensioner (two bolts), then remove the tensioner pulley if separate. Slip the belt off the cam and crank sprockets. Do not rotate cams or crank independently now.
• 🔧 8) Remove water pump
  • Place rags below the pump. Remove the pump’s bolts (note lengths) and pull the pump straight out. More coolant will drain.
  • Clean the gasket surface on the engine with a plastic scraper and brake cleaner. Do not gouge aluminum.
• 🔧 9) Install new water pump
  • Lightly oil the new gasket/O-ring. Position the pump. Install bolts finger-tight, then torque to 9 lb-ft in a crisscross pattern.
• 🔧 10) Replace tensioner and idler
  • Install new idler pulley and torque to 33 lb-ft.
  • Install the new hydraulic tensioner, torque bolts to 16 lb-ft, but don’t pull the tensioner pin yet.
• 🔧 11) Install new timing belt
  • Confirm all timing marks are still aligned.
  • Route belt in this order: crank sprocket → front bank cam → rear bank cam → water pump → idler → tensioner pulley. Keep the belt tight on the non-tensioned side.
  • Pull the tensioner pin to apply tension. Wait 5 minutes for the hydraulic plunger to settle.
  • Rotate the crank 2 turns clockwise by hand. Realign to TDC. Verify cam marks line up exactly. If off, reset and reinstall.
• 🔧 12) Reassemble front of engine
  • Install timing covers (9 lb-ft). Reinstall the right engine mount and bracket (40 lb-ft each set).
  • Install crank pulley. Use a new crank bolt. Torque to 47 lb-ft, then turn an additional 60° + 60°. Use the holder tool to keep it from turning.
  • Reinstall accessory belt. Use the tensioner to slip it over the last pulley. Verify belt routing is seated in grooves.
• 🔧 13) Refill and bleed cooling system
  • Close radiator drain. Fill with Honda Type 2 coolant at the radiator cap slowly until full. Fill the reservoir to MAX.
  • Start engine. Set cabin heat to HOT and fan low. Let it idle with the radiator cap off until fans cycle twice. Top off as needed and install the cap.
  • Check for leaks at the pump and hoses.
• 🔧 14) Final checks
  • Reinstall splash shield and wheel (lug nuts: 80 lb-ft). Lower vehicle.
  • Clear any codes if present by disconnecting battery for 2 minutes (you may need to reset radio presets and auto-up window). Verify heat works and temperature stays normal on a test drive.

Tips & Tricks 💡

• 🧠 If a cam moves slightly when the belt is off, use a wrench to nudge it back to the mark—don’t let it snap.
• 🧠 If the crank bolt won’t break free, a longer breaker bar helps. Keep the holder tool fully engaged.
• 🧠 Replace any seeping cam or crank seals now to avoid redoing the job later.

What You’ll Save 💵

• 🛠️ Shop price for water pump + timing belt on this engine: $900–$1,400. DIY parts typically $250–$450 with quality components.

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