Timing marks on Nissan Sunny: how to set correctly and avoid mistakes

Timing belt in Nissan Sunny - a critical element on which the synchronous operation of the engine depends. Incorrect installation or belt wear can result in valve bending, piston failure and engine overhaul. This problem is especially relevant for models B13, B14 And B15 with engines GA14DE, GA16DE And SR20DE, where a broken belt almost always results in serious consequences.

In this article we will look at how set the timing marks correctly on Nissan Sunny, what tools will be needed, and what to pay attention to when replacing. We will analyze typical errors (including shift by 1 tooth), consider signs of belt failure and give recommendations on the selection of spare parts. For clarity, we will attach diagrams, photos and video instructions.

Which Nissan Sunny engines require special attention to timing marks?

Not all motors Sunny equally sensitive to errors when installing the timing belt. For example, old carburetor versions (E13/E15) with a chain drive can “forgive” a small shift, while injection GA-series And SR20DE - no. Let's look at the key features:

• 🔧 GA14DE (1.4 l) - the most common motor in B13/B14. If the valve belt breaks guaranteed to bend, since the pistons do not have recesses for them. Requires precise placement of marks.
• 🔧 GA16DE (1.6 l) - similar GA14DE, but with an increased piston stroke. The risk of damage due to an error is higher due to the higher compression ratio.
• 🔧 SR20DE (2.0 L) - sports engine installed on B14/B15 (For example, Sunny GTi-R). Here the timing belt is also critical, but it is more difficult to set the marks due to two camshafts.
• ⚠️ CD20 (diesel) - less common, but if the belt breaks, it can damage the injection pump (high pressure fuel pump).

Important: on engines GA-series the marks on the crankshaft and camshaft pulley must match installation risks on the cylinder block and rear timing cover. On SR20DE additionally need to control the position distributor (if equipped) and the crankshaft position sensor.

Signs of a bad timing belt: when is it time to change it?

The manufacturer recommends replacing the timing belt with Nissan Sunny every 60–80 thousand km (or once every 4–5 years), but the actual period depends on operating conditions. Here are the key signs that the belt needs to be checked or replaced:

• 🚨 ticking sound from under the hood (especially when cold) - may indicate wear on the tensioner teeth or bearings.
• 🚨 Power dips or “jerking” during acceleration is a sign of belt slippage (valve timing shift).
• 🚨 Check Engine light comes on with errors P0340 (camshaft position sensor) or P0335 (crankshaft sensor).
• 🚨 Oil leak on the timing cover side - oil corrodes the rubber of the belt, accelerating its wear.

Critical moment: if the belt torn, the engine will stall and will not start. When you try to start, a metallic knock will be heard - this is the pistons hitting the valves. In that case You can't turn the starter - Each revolution aggravates the damage.

⚠️ Attention: On motors SR20DE A belt break is often accompanied by damage to the valve guides and even the cylinder head gasket. Repairs cost 30–50 thousand rubles.

Symptom	Probable Cause	Action
Whistle on startup	Worn belt or tension pulley	Replacing belt + rollers
Vibration at idle	Shift of marks by 1–2 teeth	Reinstallation by marks
Engine won't start	Broken belt or cut teeth	Diagnostics + timing belt repair
Increased fuel consumption	Timing phase mismatch	Checking marks, replacing belt

Tools and spare parts for replacing the timing belt

To replace the timing belt yourself with Nissan Sunny you will need a specialized tool. Without it, it is impossible to set marks with tooth-to-tooth accuracy. Here is the minimum set:

• 🔨 Keys and sockets: to “10”, “12”, “14”, “17”, “19” (for the crankshaft pulley), as well as Torx T30 (for timing cover on some models).
• 🔨 Special devices:
  • Crankshaft pulley retainer (or a homemade analogue made from a bolt and washer).
  • Belt tensioner (eg Nissan SST: KV10112100).
• 🔨 Spare parts:
  • Timing belt (original Nissan 13028-4M500 or analogues Gates, Contitech).
  • Tension and idler rollers (set Nissan 13070-4M500).
  • Pump (if the mileage is >120 thousand km, since its service life is the same as the belt).
• 🔨 Additionally: sealant for timing case cover (Loctite 574), a torque wrench (to tighten the crankshaft pulley bolt to a torque 100–120 Nm).

Tip: If this is your first time changing a belt, buy timing kit (belt + rollers + pump) from one manufacturer. This ensures compatibility of parts. For example, Gates K015631XS or Contitech CT1135K1.

Drain the antifreeze (if you are changing the pump)|

Disconnect the negative terminal of the battery |

Remove the alternator and air conditioning belt|

Secure the crankshaft from turning |

Mark the position of the pulleys with a marker (for control) -->

Step-by-step instructions: how to set timing marks on a Nissan Sunny

The marking process is different for motors GA-series And SR20DE. Below we consider the algorithm for the most common option - GA16DE (1.6 l). For other engines, details will be in spoilers.

Step 1. Preparation

Place the car on a flat surface, engage 5th gear (to fix the crankshaft) and remove the right front wheel. Remove the plastic fender liner and engine protection. Unscrew the 3 bolts securing the upper timing case cover (head at “10”).

Step 2. Aligning the marks

Turn the crankshaft clockwise (by the pulley bolt) until the marks match:

• 🔹 Mark on the pulley camshaft should stand opposite the protrusions on the rear timing cover (see photo below).
• 🔹 Mark on the pulley crankshaft — opposite there are marks on the oil pump (or cylinder block).

Step 3. Fixing and replacing the belt

Fix the crankshaft (for example, with a screwdriver through the hole in the block) and unscrew the pulley bolt (head at “19”). Remove the pulley, lower timing cover and loosen the tension roller. Install the new belt starting from the crankshaft, then tension it with a roller (roller bolt tightening torque is 40–50 Nm).

Step 4. Check

Rotate the crankshaft 2 turns and check that the marks match. If they go wrong, repeat the installation. Start the engine and listen for extraneous noise.

Features for SR20DE engine

On SR20DE It is more difficult to set the marks due to two camshafts. Here you need:

1. Align the marks on both camshafts with the marks on the rear cover.

2. Check the position of the crankshaft sensor (should point to the 20th tooth after missing).

3. Use a special clamp for camshafts (for example, Nissan SST: KV10115000) to avoid turning.

⚠️ Attention: If after replacing the belt the engine does not start or runs intermittently, check:

• Correct placement of marks (a common mistake is a shift by 1 tooth).
• Connecting the crankshaft and camshaft sensors (may become disconnected during work).
• Belt tension (overtightening leads to premature wear).

Typical mistakes when installing timing marks and their consequences

Even experienced craftsmen sometimes make mistakes that lead to engine breakdown. Here are the most common:

1. Shift marks by 1 tooth:

   Symptoms: engine stalls, hard to start, fires Check Engine with an error P0340. Consequences: increased wear of valves and seats, loss of power.

2. Incorrect belt tension:

   Weak tension leads to slipping and cutting of teeth, strong tension leads to wear of the pump bearings and rollers.

3. Ignoring pump replacement:

   If the pump jams, the belt will break within 1000 km. On Sunny with GA16DE This is guaranteed to bend the valves.

4. Using non-original videos:

   Cheap rollers (eg. no-name from China) can fall apart after 20 thousand km, which leads to belt breakage.

Critical error: turning the crankshaft counterclockwise when setting the marks. This can shift the valve timing and cause pistons to collide with the valves, even with a correctly installed belt.

How to choose a timing belt: original vs analogues

There are timing belts on the market for Nissan Sunny from dozens of manufacturers, but not all of them are equally reliable. Here is a comparison table:

Manufacturer	Article	Pros	Cons	Price (RUB)
Nissan (original)	13028-4M500	Guaranteed quality, precise fit	Honey, they're faking it	4500–6000
Gates	5631XS	High resource, rollers included	Rigid (requires precise tension)	3000–4000
Contitech	CT1135K1	Soft, works well in cold weather	Resource lower than Gates	2500–3500
Dayco	KTB630	Budget-friendly, suitable for temporary replacement	Stretch quickly	1800–2500

Recommendation: if you plan to use the car for a long time, take original or Gates. Suitable for budget renovation Contitech, but it needs to be changed every 50 thousand km.

Please note timing kitswhich include belt, rollers and pump. For example:

• 🔹 Gates K015631XS — belt + 2 rollers + pump.
• 🔹 Nissan 13070-4M505 - original kit.

Video instructions and useful materials

For clarity, we recommend that you watch the video on replacing the timing belt on Nissan Sunny:

• 🎥 Replacing the timing belt with GA16DE (step by step with comments)
• 🎥 How to set marks on SR20DE without special tools
• 📄 Official Nissan Repair Manual (PDF)

The first video shows in detail the process of removing the old belt and installing a new one, with an emphasis on tag control. The second contains tricks for engines with two camshafts, where it is important to fix the shafts before installing the belt.

FAQ: Frequently asked questions about timing marks on Nissan Sunny

Is it possible to drive if the timing belt is slipping?

No. Belt slippage leads to a shift in valve timing, which causes detonation, overheating and accelerated valve wear. At the first signs (whistle, loss of power), you urgently need to replace the belt and rollers.

How to check timing marks without removing the cover?

Indirectly - by engine operation: if it starts the first time and runs smoothly, the marks are most likely in order. Exactly - only visually, by removing the upper timing cover. On SR20DE You can use a diagnostic scan tool to check the signals from the crankshaft and camshaft sensors.

What happens if you tighten the timing belt?

An overtightened belt accelerates wear on the pump bearings and tension roller, and can also lead to breakage due to increased load. The optimal tension is checked with a dynamometer (deflection force - 5–7 kgf in the area between the pulleys).

Can I use a used timing belt?

Absolutely not. The rubber of the belt loses its elasticity over time, and the teeth wear out. Even if the belt looks normal outwardly, its resource has already been exhausted. The risk of breakage increases by 3–4 times.

How often should you check the condition of the timing belt?

Every 20–30 thousand km (or once every 2 years) it is recommended to remove the upper timing cover and inspect the belt for cracks, delamination and tooth wear. Also check the play of the tension roller - it should not be loose.