Adjusting the valves Nissan Qashqai - a procedure that many owners put off until the last minute, until the engine begins to “knock” or lose power. Meanwhile, incorrect valve clearances lead to accelerated wear of the gas distribution mechanism, increased fuel consumption and even the risk of valve burnout. In this article we will look at when adjustment is really needed, how to do it yourself (if you have experience), and how much you will have to pay at the service for the work of a master.
Feature Qashqai (especially with motors HR16DE, MR20DE And M9R) - use of hydraulic compensators on some versions, but most models before 2017 require manual adjustment. We have collected current data on regulations, symptoms of malfunction and step-by-step instructions, taking into account the nuances for gasoline and diesel engines.
When is valve adjustment needed on a Nissan Qashqai: signs and regulations
Manufacturer Nissan indicates in the service book that checking valve clearances Qashqai with gasoline engines HR16DE And MR20DE required every 100,000 km. However, this interval is only relevant under ideal operating conditions. In reality, adjustment may be needed earlier due to:
- 🔥 Constant driving at high speeds (for example, frequent trips on the highway at speeds of 140+ km/h).
- 🛣️ Operation in dusty conditions (dirt roads, construction sites).
- ❄️ Frequent cold starts in winter (especially if the engine is not warmed up to operating temperature).
- 🔧 Unqualified timing belt repair (for example, after replacing a belt or chain).
If you ignore the regulations, the first symptoms of problems appear after 60–80 thousand km. On diesel Qashqai (M9R engine), adjustment is required more often - every 60,000 km, since thermal clearances change faster due to the high compression ratio.
⚠️ Attention: On Qashqai J10 (2007–2013) with motor MR20DE Often there is a problem of “losing” clearances due to wear of the camshafts. If after adjustment the knocking noise returns after 10–15 thousand km, diagnostics of the shafts is required.
What tools are needed to adjust the valves?
For self-adjustment of valves on Nissan Qashqai you will need a specialized tool. Without it, the risk of errors or damage to parts increases significantly. Here's the full list:
| Tool | Purpose | Note |
|---|---|---|
| Set of feeler gauges (0.10–0.50 mm) | Measuring gaps | It is better to use probes with a pitch of 0.01 mm |
| Micrometer or dial indicator | Accurate gap measurement | Optional, but recommended for diesel engines |
| Special shims | Replacing old washers | Catalog numbers Nissan: 13211-XXXX |
| Device for recessing pushers | Fixing the pusher when replacing washers | You can make it yourself from a metal rod |
| Torque wrench | Tightening the cylinder head cover | Tightening torque: 8–10 Nm |
If this is your first time adjusting valves, rent device for recessing pushers — without it, it is almost impossible to accurately replace the washers without losing them inside the cylinder head. You will also need valve cover sealant (For example, Loctite 574 or Permatex Ultra Black).
- Every 50,000 km
- Every 100,000 km
- Only when there's a knock
- Never checked
Step-by-step instructions: how to adjust valves on a Nissan Qashqai
Valve adjustment procedure Qashqai takes 3–5 hours depending on experience. We will describe the process for a gasoline engine HR16DE (1.6 l), since it is the most common. For diesel M9R There are some nuances - we will look at them in the next section.
Drain the antifreeze (partially)|Remove the air duct and throttle assembly|Disconnect the high-voltage wires and ignition coils|Remove the valve cover and clean it of old sealant|Install the piston of the 1st cylinder to TDC (top dead center)-->
Step 1. Setting TDC
Turn the crankshaft clockwise until the mark on the pulley aligns with the mark on the timing cover. Check that the mark on the camshaft also matches the cast on the bearing housing. If the marks do not match, turn the crankshaft another 360°.
Step 2: Measuring the gaps
Using a feeler gauge, check the gaps for intake and exhaust valves 1st cylinder. Normal values for HR16DE (cold engine):
- 🔹 Intake valves:
0.20–0.30 mm - 🔹 Exhaust valves:
0.30–0.40 mm
If the gap is outside the limits, write down its value and note which valve requires adjustment.
Step 3: Replacing the washers
Use the formula to calculate the thickness of the new washer:
New washer = Old washer + (Measured clearance – Nominal clearance).
For example, if the old exhaust valve clearance 0.45 mm (face value 0.35 mm), and the thickness of the old washer 3.10 mm, then:
3.10 + (0.45 – 0.35) = 3.20 mm.
⚠️ Attention: On Qashqai with motorMR20DEafter 2014, washers with markings are usedNH- they cannot be replaced with washers fromHR16DE, despite the external similarity!
Before installing new washers, lubricate them with a thin layer of engine oil - this will make lapping easier and reduce the risk of scuffing.
Features of valve adjustment on a diesel Qashqai (M9R engine)
Diesel engines M9R (2.0 dCi) were set to Qashqai until 2017 and require more frequent adjustments due to high thermal loads. Main differences from gasoline engines:
- 🔧 Clearances are checked on a hot engine (oil temperature 20–30°C).
- 📏 Nominal clearances:
- Intake valves:
0.25 ± 0.05 mm - Exhaust valves:
0.40 ± 0.05 mm
- Intake valves:
- ⚙️ Uses rocker arms instead of pushers — adjustment is carried out using a screw with a lock nut.
To adjust to M9R will be needed special key for rocker arms (article NV-10122000). Without it, it is impossible to fix the rocker arm when tightening the locknut. Also be sure to check the condition hydraulic compensators - on diesel Qashqai they often fail after 150,000 km.
What happens if you don’t adjust the valves on a diesel Qashqai?
On the motor M9R too large gaps lead to shock loads on the valves, which provokes:
- Cracks in the exhaust valve plates (especially when driving at high speeds).
- Accelerated wear of guide bushings and seals.
- Loss of compression and engine tripping.
In critical cases, the valve may break and the piston may be damaged (repair cost starts from RUB 150,000).
How much does it cost to adjust valves in the service: prices 2026
Valve adjustment cost Nissan Qashqai depends on engine type, region and service level. The average prices in Russia are:
| Engine type | Cost of work (rub.) | Cost of spare parts (RUB) | Total (RUB) |
|---|---|---|---|
HR16DE (1.6 petrol) |
4 000 – 6 000 | 1,500 – 3,000 (washers + sealant) | 5 500 – 9 000 |
MR20DE (2.0 petrol) |
5 000 – 7 000 | 2 000 – 4 000 | 7 000 – 11 000 |
M9R (2.0 diesel) |
6 000 – 9 000 | 3,000 – 5,000 (rocker arms, compensators) | 9 000 – 14 000 |
At official dealerships Nissan the price may be 20–30% higher, but they guarantee original spare parts and diagnostics of related systems (for example, checking the timing chain). In small services, they often save on washers by installing non-original ones - this is fraught with repeated adjustment after 20-30 thousand km.
On diesel Qashqai (M9R), valve adjustment is often combined with replacing the timing chain (regulation is 150,000 km). Complex work will cost less than two separate procedures.
Common mistakes when adjusting valves and how to avoid them
Even experienced craftsmen sometimes make mistakes that lead to repeated disassembly of the engine. Here are the most common:
- 🔩 Incorrect TDC setting - if the marks are 180° off, you will adjust the valves of the 4th cylinder instead of the 1st.
- 📉 Use of worn washers - even if the gap is normal, old washers may have microcracks.
- 🛢️ Saving on sealant — cheap sealants leak when heated, which leads to oil leaks.
- 🔧 Retightening the cylinder head cover bolts — the tightening torque exceeds 10 Nm, which leads to deformation of the cover.
To avoid problems, follow two rules:
- Always double check clearances — after adjustment, turn the crankshaft 2 turns and measure again.
- Use only original washers Nissan or analogues from Nipparts/Febi.
⚠️ Attention: On Qashqai J11 (2014–2021) with motor MR20DD (direct injection) valve adjustment is not required - hydraulic compensators are used. However, their wear can manifest itself as a knocking noise on a cold engine, which disappears after warming up.
Is it possible to drive with knocking valves: consequences
Many owners Qashqai They ignore the knocking of valves, attributing it to “engine features.” In fact, even a small knock leads to:
- 🔥 Accelerated wear of camshaft cams — after 30–50 thousand km, the shaft may need to be replaced.
- ⚡ Loss of power — the engine “does not pull” at high speeds, fuel consumption increases.
- 💥 Risk of valve burnout - if the gap is too small, the valve does not close completely, which leads to overheating.
On diesel Qashqai The knocking of valves is often disguised as the operation of fuel equipment. To pinpoint the source of noise, use phonendoscope or remove the valve cover for visual inspection.
If valve knocking appears only on a cold engine and disappears after warming up, the problem is most likely in the hydraulic compensators, and not in the clearances.
FAQ: Frequently asked questions about valve adjustment on Nissan Qashqai
Is it possible to adjust the valves on a Qashqai without removing the cylinder head?
Yes, on gasoline engines HR16DE And MR20DE adjustment is performed without removing the cylinder head. Simply remove the valve cover and set TDC. On diesel M9R Also, dismantling the cylinder head is not required.
What sealant is best to use for the valve cover?
We recommend Loctite 574 (blue) or Permatex Ultra Black. They withstand high temperatures and do not leak over time. Cheap sealants (for example, Abro) can cause oil leaks after 10–20 thousand km.
How long does it take to adjust valves in the service?
On average 3–4 hours for a gasoline engine and 4–5 hours for a diesel engine. If replacement of worn parts (for example, valve seals) is required, the time increases to 6–8 hours.
Can I use washers from other Nissan models?
Theoretically, yes, but only if their thickness and diameter match the original ones. For example, washers from Nissan Note (motor HR16DE) suitable for Qashqai, but here are the washers from X-Trail (motor MR20DE after 2017) - no.
What to do if after adjustment the engine starts to run worse?
Probable reasons:
- The gaps are set incorrectly (too small or too large).
- Foreign objects entering the combustion chamber (for example, fragments of an old washer).
- The tightening sequence of the cylinder head cover bolts is incorrect.
Immediately return to the service center or recheck the work yourself.