⚠️ Early Access Notice
This guide is based on My Winter Car Early Access (December 29, 2025 release). Mechanics, bolt sizes, and part names may change in future updates. Cross-reference with the Steam community guides or Fandom wiki if something doesn't match.
1. Engine Overview & Specifications
The Corris Rivett is powered by a 2.0L SOHC Inline-4 engine modeled on the real-world Ford Pinto TL20H. Unlike modern engines, it uses a mechanical fuel pump, a carburetor, and a timing belt (not a chain). There is no electronic rev limiter — every part of the engine must be built correctly for it to run at all.
| Specification | Details |
|---|
| Engine Type | 2.0L SOHC Inline 4-Cylinder |
| Real-World Basis | Ford Pinto TL20H (approx. 1971–1976) |
| Stock Power Output | ~98 HP @ 5,500 RPM |
| Fuel System | Carburetor + Mechanical Fuel Pump |
| Ignition System | Points-type Distributor |
| Timing System | Timing Belt (3-sprocket: crank, aux shaft, cam) |
| Rev Limiter | None — over-revving = engine damage |
| Gearbox (stock) | 4-speed manual (L/LX trim) — 6× 11mm bolts |
💡 Key Difference from My Summer Car
The Rivett engine uses a timing belt + auxiliary shaft system (3 sprockets total), whereas the Satsuma used a simpler chain. The distributor also requires active tuning once the engine is running — not just installation. These two steps are where most players get stuck.
🚨 No Rev Limiter — Critical Warning
The Corris Rivett has no electronic rev limiter. Over-revving at high RPM will cause catastrophic and permanent engine damage. Always watch the tachometer during first-start and tuning runs. Avoid "money shifting" (accidentally downshifting at high RPM).
⚙️ Build Location Recommendation
Always build the complete engine on the workbench at the parents' house garage before installing it in the car. The garage has a motor hoist essential for engine bay installation. The apartment has no hoist and no space. See our Complete Build Guide for the full vehicle assembly order.
2. Parts Sourcing & Complete Checklist
Engine parts cost approximately 3,000–6,000 mk total depending on whether you buy used (Classifieds Magazine) or NOS (Fleetari). Order from the Classifieds first — orders arrive in ~2 in-game days, so batch everything together. See the Parts Acquisition Guide for sourcing strategy.
⚙️ Bottom End
- Engine Block
- Crankshaft
- Main Bearings
- Connecting Rods (×4)
- Pistons (×4)
- Oil Pump
- Oil Pan
- Oil Filter
🔝 Cylinder Head
- Head Gasket
- Cylinder Head
- Camshaft
- Rocker Arms / Followers
- Rocker Cover
⏳ Timing System
- Auxiliary Shaft
- Auxiliary Shaft Sprocket
- Camshaft Sprocket
- Timing Belt
- Timing Belt Cover
- Crankshaft Pulley
🔥 Fuel & Ignition
- Carburetor (1- or 2-barrel, VIN-dependent)
- Air Filter
- Fuel Pump (Mechanical)
- Distributor
- Spark Plugs (×4)
- Ignition Leads (×4)
❄️ Cooling & Fan Belt
- Thermostat
- Water Pump
- Water Pump Pulley
- Fan
- Fan Belt
- Alternator
🔩 Clutch & Starter
- Starter Motor
- Rear Plate
- Flywheel
- Clutch Disk
- Clutch Cover Plate
- Clutch Pressure Plate
💡 Ordering Strategy
Order the full bottom end and cylinder head parts first — they take 2 days. While waiting, earn money with firewood deliveries (400–800 mk/run). Buy critical internals (crankshaft, pistons, camshaft) from Fleetari as NOS if budget allows — these won't wear prematurely. Buy exterior pieces (timing belt cover, air filter) from Classifieds to save cash. See our Money Guide if funds are tight.
Start with the engine block on the workbench. All bottom end work happens before the cylinder head goes on.
1 Crankshaft & Main Bearings
- Place the engine block on the workbench
- Lower the crankshaft into the main bearing saddles
- Install main bearings and torque all cap bolts
2 Connecting Rods & Pistons
- Attach connecting rods to the crankshaft journals
- Install 4 pistons onto the connecting rods
- Flip the block if needed to access lower components
3 Oil System
- Mount the oil pump to the block
- Attach the oil pan underneath
- Install the oil filter (hand-tighten — do not overtighten)
1 Head Gasket & Cylinder Head
- Lay the head gasket flat on top of the engine block
- Lower the cylinder head carefully onto the block
- Torque all head bolts in the correct cross-pattern sequence
2 Camshaft & Valve Train
- Slide the camshaft into the cylinder head
- Install rocker arms / cam followers over each valve
- Fit the rocker cover to seal the head
This is the most critical and most-failed step in the entire build. An incorrectly timed engine will crank but never fire. Read every step before proceeding.
1 Install Auxiliary Shaft & Sprockets
- Insert the auxiliary shaft into the engine block
- Attach the auxiliary shaft sprocket to the auxiliary shaft
- Attach the camshaft sprocket to the camshaft
2 Prepare for Belt Routing
- Remove the crankshaft pulley — it blocks belt access
- Remove the water pump and water pump pulley — these are reinstalled after the belt
⚠️ Removal Order Matters
Forgetting to remove the crankshaft pulley and water pump pulley before routing the belt is the single most common mistake. The belt physically cannot be installed correctly with them in place.
3 Route the Timing Belt — Alignment Critical
- Route the timing belt over all three sprockets in this order:
Crankshaft sprocket → Auxiliary shaft sprocket → Camshaft sprocket
- Ensure the belt sits flat and centered on every sprocket with no twists
- Verify timing marks:
• Camshaft sprocket arrow must align with the reference mark on the cylinder head
• Crankshaft alignment mark must align with the reference mark on the engine block
• Auxiliary shaft mark must align with its reference
🚨 If Any Mark is Wrong — Stop
Do not proceed if any timing mark is misaligned. An engine with incorrect valve timing will crank but never start. Remove the belt, rotate the appropriate sprocket by one tooth, and recheck before reinstalling. This is the #1 reason a fully-assembled engine fails to start.
4 Reinstall Water Pump & Cover
- Reinstall the water pump onto the engine block
- Reinstall the water pump pulley
- Reinstall the crankshaft pulley
- Install the timing belt cover using 2× 6mm bolts into the cylinder head
✓ Timing System Complete
With the cover on, the core engine architecture is complete. If you've verified all three timing marks, the engine is internally correct. Proceed to fuel and ignition components.
1 Fuel Pump & Carburetor
- Mount the fuel pump (mechanical type) to the side of the engine block
- Bolt the carburetor to the intake manifold
- Attach the air filter to the carburetor inlet
💡 Carburetor Type Depends on VIN
Your trim level (readable from the VIN plate) determines whether you have a single-barrel (L, LX trim) or twin-barrel carburetor (GT trim). Make sure you order the correct one. See our VIN Decoder Guide for trim identification.
2 Distributor & Spark Plugs
- Slot the distributor into its housing on the engine block and secure with its single screw — leave it slightly loose for tuning later
- Install all 4 spark plugs into the cylinder head
- Connect the 4 ignition leads from distributor cap to spark plugs in firing order: 1–3–4–2
💡 Install, Then Tune Later
The distributor needs to be tuned while the engine is running — not during assembly. Install it for now, leave the screw slightly loose, and proceed. Full distributor tuning is covered in Section 9.
The fan belt (also called the drive belt or serpentine belt) connects the alternator, water pump pulley, and crankshaft pulley. Tension is set via the alternator's position — there is no separate tensioner pulley.
1 Assemble Fan on Water Pump
- Install the thermostat in the coolant outlet housing
- Attach the fan to the water pump hub
- Confirm the water pump pulley is already installed from Phase 3
2 Install Alternator
- Mount the alternator in its bracket on the engine block
- Use a screwdriver to loosen the alternator pivot/adjustment screw
- Push the alternator toward the water pump to create slack — this is done with your mouse
3 Route & Tension Fan Belt
- Route the fan belt over:
• Crankshaft pulley (bottom)
• Water pump pulley (middle)
• Alternator pulley (top)
- Slowly move the alternator away from the water pump to take up slack and tension the belt
- Target tension: the belt should feel taut and deflect no more than ~1cm at moderate thumb pressure — listen for squealing (too loose) or snapping risk (too tight)
- Once tension is correct, tighten the alternator adjustment screw with the screwdriver to lock position
⚠️ Squealing Fan Belt
A squealing sound from the engine bay after first start almost always means the fan belt is too loose. Stop the engine, loosen the alternator screw, move the alternator outward to add tension, and retighten. A properly tensioned belt runs silently.
The gearbox cannot be installed until the full clutch assembly is mounted on the flywheel. Attempting to install the gearbox before the clutch is complete will fail.
1 Starter Motor & Rear Plate
- Mount the starter motor on the engine block
- Bolt the rear plate to the back of the engine block — this is the gearbox mating surface
2 Flywheel & Clutch Assembly
- Install the flywheel onto the crankshaft flange
- Install clutch components in strict order:
• Clutch Disk (aligned to flywheel center)
• Clutch Cover Plate
• Clutch Pressure Plate
💡 Order Cannot Be Changed
The clutch disk must be installed before the cover and pressure plate. The game enforces this sequence — attempting to install out of order will not work. For automatic transmission builds, install the flexplate instead of flywheel + clutch components.
3 Mount the Gearbox
- Align the gearbox input shaft to the clutch disk center
- Slide the gearbox toward the engine and mate it to the rear plate
- Secure with 6× 11mm bolts — tighten all bolts evenly to avoid distortion
- Install the correct gear lever for your gearbox type:
• 4-speed manual → 4-speed gear lever
• 5-speed manual → 5-speed gear lever
• 3-speed automatic → selector lever
- Reinstall the gearbox crossmember
- Connect the driveshaft from gearbox output to rear differential
| Gearbox Type | Bolts | Lever | Trim |
|---|
| 4-speed manual | 6× 11mm | 4-speed gear lever | L, LX (standard) |
| 5-speed manual | 6× 11mm | 5-speed gear lever | Aftermarket/Classifieds |
| 3-speed automatic | 6× 11mm | Selector lever | Optional trim |
9. Distributor Tuning — How to Set Ignition Timing
The distributor controls when each spark plug fires relative to piston position. If it is even slightly misaligned, the engine will idle roughly, stall under load, or rev very slowly. This adjustment must be made with the engine running and warm.
⚠️ Signs of Incorrect Distributor Timing
🔴 Engine starts but immediately stalls | 🔴 Very slow, labored revving | 🔴 Faint chirping or rattling sound from the engine bay | 🔴 Engine surges or hunts at idle
🔧 Distributor Tuning Procedure
- Start the engine and let it reach operating temperature (temperature gauge needle moving into normal range)
- Listen carefully — if you hear a faint chirping or ticking noise from the engine, that is a sign of incorrect ignition timing
- With the engine running, use your screwdriver to slightly loosen the distributor screw (just enough to allow rotation — do not fully remove)
- Use the mouse scroll wheel to slowly rotate the distributor in small increments — both directions are valid
- Continue adjusting until the chirping noise completely disappears and the engine sounds smooth and even
- Tighten the distributor screw to lock it in position — do not disturb it after this
- Rev the engine gently to confirm it responds cleanly without stalling or surging
✓ Correct Distributor Setting
A correctly timed engine idles smoothly and quietly, revs freely without hesitation, and does not stall when blipping the throttle. If the engine still won't run properly after distributor tuning, proceed to carburetor adjustment — see our Tuning Guide.
10. Engine Won't Start — Troubleshooting
If your fully-assembled engine cranks but won't start, work through this checklist in order:
🔴 Engine Cranks But Won't Fire
Most likely cause: Incorrect timing belt alignment
- Remove the timing belt cover (2× 6mm bolts)
- Visually check all three timing marks — camshaft arrow, crankshaft mark, auxiliary shaft mark
- If any mark is off by one tooth, remove the belt, reposition, and reinstall
- Also check: are all 4 spark plug leads connected and correct?
- Also check: is the lower dash cover installed? (Required for choke access)
🟡 Engine Starts Then Immediately Stalls
- Distributor misaligned — loosen screw, use scroll wheel to adjust until chirp disappears
- Flooded carburetor — push choke fully IN, press throttle to floor, crank 10 seconds, wait 5 min
- Lean fuel mixture — carburetor mixture screw needs adjustment. See Tuning Guide
🟡 Nothing Happens When Turning Key
- Check battery is installed and terminals are tight (positive first)
- Check starter motor wiring is connected to battery positive
- Check fuse box is installed and all fuses present
- Check ignition switch wiring — see Wiring Guide
🟡 Engine Starts But Runs Rough / Underpowered
- Distributor timing off — tune with scroll wheel as above
- Carburetor mixture too rich or lean — check AFR gauge (aim for 13.5–14.0)
- Fan belt too loose — alternator not charging properly; retension
- Spark plug lead incorrectly routed — verify firing order 1-3-4-2
📚 Cold Start — Procedure Summary
In temperatures below −15°C: plug in the block heater overnight first. Then: dry crank 5 seconds (no choke) → pull choke fully out → crank 5–10 seconds → if caught, idle 2–3 min with choke partially in → push choke in as temperature rises. See our full Corris Rivett Guide for detailed cold start steps.
🔧 Need More Help?
For vehicle-level issues beyond the engine (wiring, brakes, inspection failure), see our Complete Troubleshooting Guide covering 20+ common problems.
Pre-Start Checklist
Before cranking for the first time, verify every item below:
✓ Engine Pre-Start Checklist
- All engine bolts tightened — nothing loose
- Timing belt cover installed (2× 6mm bolts)
- Oil filter fitted (hand-tight)
- Engine oil filled to dipstick level
- Coolant filled in radiator
- Fuel tank has fuel (minimum half tank)
- Brake fluid in master cylinder
- Battery charged, terminals tight (+ first)
- Starter motor wired correctly
- All 4 spark plug leads connected
- Distributor screw slightly loose (for first tune)
- Fan belt tensioned correctly (snug, no squeal)
- Lower dash cover installed (choke access)
- Block heater plugged in if below −15°C