Can a broken Valve Spring, a damaged Valve Spring Retainer and a defective Valve Stem Seal be replaced without removing the cylinder heads on Mitsubishi Montero?

Replacement of broken valve springs and defective valve stem seals can occur without the need to take off the cylinder heads. This usually requires two special tools and an air supply. When compressed air is unavailable, a length of nylon rope may prevent the valves from falling into the cylinder. To start, the valve cover of the cylinder head in question has to be removed. If all valve stem seals are being replaced then both covers. Then, take out the spark plug from the cylinder having the defective component and turn the crank shaft until the piston reaches its top dead center on the compression stroke. An air hose from a compressed air source should be connected to an adapter screwed into the plug hole. Once you have removed the rocker and the shafts, blast air into the cylinder. The air pressure will hold the valves in their place. A method can also be used whereby the air pressure is not activated. In this case, the piston can be placed just before TDC, and nylon rope can be fed manually into the combustion chamber. Tightly stuff shop rags in the cylinder head holes so that nothing falls down into the engine. Then use a valve spring compressor to compress the spring and remove the keepers. After removing the spring retainer, shield, valve spring, and guide seal, wrap a rubber band or tape around the valve stem, so it does not fall into the combustion chamber when you release the air pressure. Examine the valve stem for damage, and check if it can move freely in the guide. To keep the valve closed, air pressure is reapplied. The valve stem will be lubricated using engine oil, and the new guide seal will be installed. Place spring over valve and install spring retainer. Next, compress spring and carefully position the keepers. Use grease to hold the keepers in position. Once the keepers are seated, remove the air hose, adapter, place the spark plugs and reconnect the wires. In conclusion, engage the engine and observe for any oil leakage or the occurrence of odd noises.

Genuine Mitsubishi Valve Spring

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16 Valve Springs found

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Mitsubishi Valve Springs Part Number: 1010A696
$6.43 MSRP: $8.37
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Product Specifications
- Other Name: Spring, Exhaust Valve; Valve Spring
Fits the following Mitsubishi Models:
- Mirage | 2022-2024 | BE, Black Edition, ES, LE, SE | 3 Cyl 1.2 L GAS
- Mirage G4 | 2022-2024 | BE, ES, LE, SE | 3 Cyl 1.2 L GAS
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Mitsubishi Valve Springs Part Number: MN158946
$6.73 MSRP: $8.77
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Product Specifications
- Other Name: Spring, Engine Valve; Valve Spring
Fits the following Mitsubishi Models:
- Lancer | 2005-2006 | ES, OZ Rally, SE | 4 Cyl 2.0 L GAS
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Mitsubishi Valve Springs Part Number: MD170036
$8.01 MSRP: $10.43
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Product Specifications
- Other Name: Spring, Inlet & Exhaust; Valve Spring
Fits the following Mitsubishi Models:
- Expo LRV | 1992-1994 | Base, Sport | 4 Cyl 1.8 L GAS
- Mirage | 1993-1997 | ES, LS | 4 Cyl 1.8 L GAS
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Mitsubishi Valve Springs Part Number: MN137027
$8.61 MSRP: $11.22
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Product Specifications
- Other Name: Spring, Engine Valve; Valve Spring
Fits the following Mitsubishi Models:
- Diamante | 1997-2004 | Base, ES, LS, VR-X | 6 Cyl 3.5 L GAS
- Eclipse | 1996-2005 | GS, GT, GTS, RS, Spyder GS, Spyder GT, Spyder GTS | 4 Cyl 2.4 L GAS, 6 Cyl 3.0 L GAS
- Endeavor | 2010-2011, 2004-2008 | LS, Limited, SE, XLS | 6 Cyl 3.8 L GAS
- Expo | 1993-1995 | Base, SP | 4 Cyl 2.4 L GAS
- Expo LRV | 1993-1994 | Base, Sport | 4 Cyl 2.4 L GAS
- Galant | 1993-2009 | DE, ES, GS, GTS, GTZ, LS, Ralliart, S, Sport V6 | 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS
- Montero | 1995-2006 | Base, LS, Limited, SR, XLS | 6 Cyl 3.0 L GAS, 6 Cyl 3.5 L GAS, 6 Cyl 3.8 L GAS
- Montero Sport | 1997-2004 | ES, LS, Limited, XLS, XS | 4 Cyl 2.4 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.5 L GAS
- Outlander | 2003 | LS, XLS | 4 Cyl 2.4 L GAS
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Mitsubishi Valve Springs Part Number: MN137333
$11.33 MSRP: $14.75
You Save: $3.42 (24%)
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Product Specifications
- Other Name: Spring, Inlet Valve; Valve Spring
Fits the following Mitsubishi Models:
- Eclipse | 2006-2012 | GS, GS Sport, SE, Spyder GS, Spyder GS Sport, Spyder SE | 4 Cyl 2.4 L GAS
- Galant | 2004-2012 | DE, ES, FE, SE, Sport Edition | 4 Cyl 2.4 L GAS
- Lancer | 2004-2006 | Ralliart, Sportback, Sportback Ralliart | 4 Cyl 2.4 L GAS
- Outlander | 2004-2006 | LS, Limited, SE, XLS | 4 Cyl 2.4 L GAS
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Mitsubishi Valve Springs Part Number: 1010A289
$11.39 MSRP: $14.83
You Save: $3.44 (24%)
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Product Specifications
- Other Name: Spring, Inlet Valve; Valve Spring
Fits the following Mitsubishi Models:
- Outlander | 2010-2020 | GT, XLS | 6 Cyl 3.0 L GAS
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Mitsubishi Valve Springs Part Number: MN143856
$11.51 MSRP: $14.98
You Save: $3.47 (24%)
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Product Specifications
- Other Name: Spring, Exhaust Valve; Valve Spring
Fits the following Mitsubishi Models:
- Eclipse | 2006-2012 | GS, GS Sport, SE, Spyder GS, Spyder GS Sport, Spyder SE | 4 Cyl 2.4 L GAS
- Galant | 2004-2012 | DE, ES, FE, SE, Sport Edition | 4 Cyl 2.4 L GAS
- Lancer | 2004-2006 | Ralliart, Sportback, Sportback Ralliart | 4 Cyl 2.4 L GAS
- Outlander | 2004-2006 | LS, Limited, SE, XLS | 4 Cyl 2.4 L GAS
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Mitsubishi Valve Springs Part Number: MD073398
$11.60 MSRP: $15.10
You Save: $3.50 (24%)
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Product Specifications
- Other Name: Spring, Engine Valve; Valve Spring
Fits the following Mitsubishi Models:
- 3000GT | 1997-1999 | Base | 6 Cyl 3.0 L GAS
- Cordia | 1985-1988 | L, Turbo | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
- Diamante | 1993-1996 | ES, LS | 6 Cyl 3.0 L GAS
- Expo | 1992 | Base, SP | 4 Cyl 2.4 L GAS
- Galant | 1985-1988 | Base, Sigma | 4 Cyl 2.4 L GAS, 6 Cyl 3.0 L GAS
- Mighty Max | 1985-1996 | 1 Ton, Base, SP, SPX, Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L GAS, 4 Cyl 2.6 L GAS, 6 Cyl 3.0 L GAS
- Montero | 1985-1994 | Base, LS, RS, SP, SR, Sport | 4 Cyl 2.6 L GAS, 6 Cyl 3.0 L GAS
- Sigma | 1989-1990 | Base | 6 Cyl 3.0 L GAS
- Starion | 1985-1989 | ES, ESi, ESi-R, LE, LS | 4 Cyl 2.6 L GAS
- Tredia | 1985-1988 | Base, L, LS, Turbo | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
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Mitsubishi Valve Springs Part Number: 1010A165
$12.08 MSRP: $15.73
You Save: $3.65 (24%)
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Product Specifications
- Other Name: Spring, Inlet Valve; Valve Spring
Fits the following Mitsubishi Models:
- Outlander | 2007-2009 | ES, LS, XLS | 6 Cyl 3.0 L GAS
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Mitsubishi Valve Springs Part Number: MN143505
$12.12 MSRP: $15.78
You Save: $3.66 (24%)
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Product Specifications
- Other Name: Spring, Exhaust Valve; Valve Spring
Fits the following Mitsubishi Models:
- Eclipse | 2006-2012 | GT, SE, Spyder GT | 6 Cyl 3.8 L GAS
- Galant | 2007-2009 | Ralliart | 6 Cyl 3.8 L GAS
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Mitsubishi Valve Springs Part Number: 1011A069
$12.12 MSRP: $15.78
You Save: $3.66 (24%)
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Product Specifications
- Other Name: Spring, Exhaust Valve; Valve Spring
Fits the following Mitsubishi Models:
- Outlander | 2007-2009 | ES, LS, XLS | 6 Cyl 3.0 L GAS
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Mitsubishi Valve Springs Part Number: 1011A242
$12.33 MSRP: $16.05
You Save: $3.72 (24%)
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Product Specifications
- Other Name: Spring, Exhaust Valve; Valve Spring
Fits the following Mitsubishi Models:
- Outlander | 2010-2020 | GT, XLS | 6 Cyl 3.0 L GAS
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Mitsubishi Valve Springs Part Number: 1011A368
$12.92 MSRP: $16.82
You Save: $3.90 (24%)
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Product Specifications
- Other Name: Spring, Exhaust Valve; Valve Spring
Fits the following Mitsubishi Models:
- Outlander | 2014-2020 | ES, LE, SE, SEL, SP | 4 Cyl 2.4 L GAS
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Mitsubishi Valve Springs Part Number: 1010A201
$13.08 MSRP: $17.03
You Save: $3.95 (24%)
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Product Specifications
- Other Name: Spring, Engine Valve; Valve Spring
Fits the following Mitsubishi Models:
- Lancer | 2008-2015 | Evolution Final Edition, Evolution GSR, Evolution MR, Evolution MR Touring, Evolution SE, Ralliart, Ralliart Sportback | 4 Cyl 2.0 L GAS
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Mitsubishi Valve Springs Part Number: 1010A385
$13.52 MSRP: $17.60
You Save: $4.08 (24%)
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Product Specifications
- Other Name: Spring, Engine Valve; Valve Spring
Fits the following Mitsubishi Models:
- Lancer | 2011-2017 | DE, ES, ES Sportback, GT, GT Sportback, GTS, GTS Sportback, SE, SEL | 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L GAS
- Outlander | 2011-2013 | ES, SE | 4 Cyl 2.4 L GAS
- Outlander PHEV | 2023-2024, 2018-2021 | ES, GT, LE, Platinum Edition, Ralliart, SE, SE Tech, SEL, SEL Premium, SEL Touring | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV), 4 Cyl 2.4 L PLUG-IN HYBRID EV-GAS (PHEV)
- Outlander Sport | 2011-2024 | BE, ES, GT, GT Special Edition, LE, Ralliart, S, SE, SE Special Edition, SEL, SP, Trail Edition | 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L GAS
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Mitsubishi Valve Springs Part Number: MQ718312
$14.86 MSRP: $18.81
You Save: $3.95 (21%)
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Product Specifications
- Other Name: Spring, Inlet & Exhaust; Valve Spring
Fits the following Mitsubishi Models:
- Outlander | 2022-2024 | Black Edition, ES, SE, SE Launch Edition, SEL, SEL Launch Edition | 4 Cyl 2.5 L GAS

Mitsubishi Valve Spring

The Mitsubishi Valve Spring ensures that the engine's valves are tightly sealed while also allowing for their rapid return. Throughout the powertrains of the company, the Valve Spring is made with high strength steel windings that flex thousands of times per minute but are still able to maintain close contact between cam and valve and prevent float at high rpm while withstanding extremes of heat. Because of its balanced open and seat pressures, the same core design fits easily into different cylinder heads without the need for custom modifications. This provides parts commonality and makes for easier serviceability. The third benefit is its simple cylinder shape that allows it to fit spring compressors, so standard replacement is sped up again and long-term reliability is high. Mitsubishi was established in 1870 and started off in shipping. Later, it diversified into motor vehicles and has never looked back since then. It has always been on the lookout for innovations that make its vehicles user-friendly. It introduced the Model A in 1917. Today, Mitsubishi has a range of offerings where innovation is evident. It includes MIVEC variable timing engines and Super All Wheel Control that offers a gripping experience to the customers. The Mitsubishi Outlander PHEV is a plug-in hybrid that offers the optimal of both worlds. It does not compromise on efficiency or range. The brand specializes in practical technology. For example, its cruise control and smartphone integration reduce driver effort further. Moreover, ongoing trials with fuel cell systems and basic active safety sensors show its eye on future mobility. Through the emphasis on durable components like the Valve Spring and rigorous drivetrain features, the cars continue to start readily, pull strongly, and ultimately remain dependable over the years due to smart engineering.

Pick genuine OEM Valve Spring if you want superb performance and durability that lasts. Mitsubishi builds that using high-grade materials and official factory techniques to meet very strict standards. This means you get parts you can actually trust for your daily drive. Finding the right parts is simple in the massive stock of genuine inventory. You can stop guessing if a part will fit or hold up. You will love the low prices, dependable service and the real manufacturer's warranty on Mitsubishi Valve Spring. Order today and the store will ship your brand-new items to your door as fast as possible.

Mitsubishi Valve Spring Parts Questions & Experts Answers

Valve Springs
MD073398
Q: Can a broken Valve Spring, a damaged Valve Spring Retainer and a defective Valve Stem Seal be replaced without removing the cylinder heads on Mitsubishi Montero?
A:
Replacement of broken valve springs and defective valve stem seals can occur without the need to take off the cylinder heads. This usually requires two special tools and an air supply. When compressed air is unavailable, a length of nylon rope may prevent the valves from falling into the cylinder. To start, the valve cover of the cylinder head in question has to be removed. If all valve stem seals are being replaced then both covers. Then, take out the spark plug from the cylinder having the defective component and turn the crank shaft until the piston reaches its top dead center on the compression stroke. An air hose from a compressed air source should be connected to an adapter screwed into the plug hole. Once you have removed the rocker and the shafts, blast air into the cylinder. The air pressure will hold the valves in their place. A method can also be used whereby the air pressure is not activated. In this case, the piston can be placed just before TDC, and nylon rope can be fed manually into the combustion chamber. Tightly stuff shop rags in the cylinder head holes so that nothing falls down into the engine. Then use a valve spring compressor to compress the spring and remove the keepers. After removing the spring retainer, shield, valve spring, and guide seal, wrap a rubber band or tape around the valve stem, so it does not fall into the combustion chamber when you release the air pressure. Examine the valve stem for damage, and check if it can move freely in the guide. To keep the valve closed, air pressure is reapplied. The valve stem will be lubricated using engine oil, and the new guide seal will be installed. Place spring over valve and install spring retainer. Next, compress spring and carefully position the keepers. Use grease to hold the keepers in position. Once the keepers are seated, remove the air hose, adapter, place the spark plugs and reconnect the wires. In conclusion, engage the engine and observe for any oil leakage or the occurrence of odd noises.