x

Leaking Rocker Cover Gasket – Repair & Replacement

What is the rocker cover gasket?

The rocker cover gasket (also known as the valve cover gasket) is an important but often overlooked engine component. Its role is to hold the rocker cover in place, protecting the engine cylinder head and preventing oil from escaping your engine.

The rocker cover gasket is made from rubber or durable plastic and is positioned above the engine cylinder head to prevent oil leaking out of the engine’s valve cover.

Learn more about the rocker cover gasket >

 

What happens when the gasket is damaged or leaks?

The rocker cover gasket is frequently exposed to high temperatures. This means that it can become brittle and eventually loose its gasket sealing abilities. Sometimes it can even crack. A hardened, damaged, under or over tightened or broken rocker cover gasket will result in oil leaking out of your engine and often all over the rest of your engine and engine bay. Very often this oil will also leak directly onto your engines hot exhaust system which is very dangerous in terms of the fumes and fire risk. 

 

What are the symptoms of a leaking rocker cover gasket?

There are several symptoms which you can use to identify a leaking rocker cover gasket. These include:

Visible oil leaks – You may notice oil leaking from underneath your vehicle’s engine bay. 

Burning oil smell – If oil is dripping onto your exhaust, it will burn, producing a noticeable smell. 

Engine running hotter – If enough engine oil leaks out the engine may begin to run hotter, and if the engine oil gets too low the engine may start to seize up. If you engine seizes up it is generally more cost effective to put a second hand engine from a car wrecker / dismantler than to recondition your seized engine.  

 

How important is a rocker cover gasket replacement?

Oil leaking from the engine rocker cover(s) generally finds its way onto the engines hot exhaust pipe or even hotter catalytic convertor in the exhaust system. This poses two main dangers:

  1. this hot oil can reach ignition temperature when in contact with your hot exhaust system starting a fire underneath your vehicle.
  2. even if the oil dose not reach ignition temperature the heating of the oil can start to put out toxic and environmentally unfriendly fumes which are very bad for you and your passengers health.

A damaged rocker cover gasket will cause oil to leak from your engine. An oil leak starves your engine of oil, resulting in damage to the engine over time.

As the engine is depleted of oil, its parts will lose lubrication, resulting in increased friction and heat. This causes premature wear of engine parts, resulting in an expensive repair if left untreated (from a seized or partially seized engine parts).

It can also be quite embarrassing to park on someones clean concrete and have your car drip oil stains everywhere!


 

Rocker Cover Gasket Replacement in Hamilton

If your rocker cover gasket is broken, it will need to be replaced before your engine sustains serious damage. At Grimmer Motors, we can provide reliable and effective gasket replacements for your vehicle. 

For rocket cover gasket repair and replacement in Hamilton, contact Grimmer Motors today!

 

CONTACT US

Phone: 07 855 2037

Email: office@grimmermotors.co.nz

Address: 998 Heaphy Terrace, Fairfield, Hamilton

Providing reliable services for:

 

Japanese Cars:

Daihatsu
Honda
Isuzu
Kia
Lexus
Mazda
Mitsubishi
Nissan
Subaru
Suzuki
Toyota

 

American & Australian Cars:

Chevrolet
Chrysler
Dodge
Ford (US and Australian makes)
GM
Holden (US and Australian makes)
Jeep

 

European Cars:

Alfa Romeo
Audi
BMW
Citroen
Fiat
Jaguar
Land Rover
Mercedes
Peugeot
Porsche
Renault
Rover
Saab
Seat
Skoda
Vauxhall-Opel
Volkswagen
Volvo

 

Korean and Chinese Cars:

Daewoo
Chery
Foton
Geely
Great Wall
Haval
Hyundai
Kia
Ssangyong

Thousands of happy clients from:

Aberdeen
Ashmore
Beerescourt
Callum Brae
Chartwell
Chedworth Park
Claudelands
Crawshaw
Deanwell
Dinsdale
Temple View
Enderley
Fairfield
Fairview Downs
Whitiora
Te Kowhai
Thornton
Western Heights

Flagstaff
Forest Lake
Te Rapa
Nawton
Frankton
Glaisdale
Glenview
Grandview Heights
Hamilton Central
Hamilton North
Hamilton East
Hamilton West
Harrowfield
St James Park
St Petersburg
Somerset Heights

Huntington
Livingstone
Magellan Rise
Maeroa
Melville
Fitzroy
Pukete
St Andrews
Queenwood
Ruakura
Riverlea
Rotokauri
Rototuna
Silverdale
Hillcrest
Stonebridge

Morrinsville
Cambridge
Te Awamutu
Matamata
Te Kowhai
Raglan
Ngarawahia
Kihikihi
Ohinewai
Huntly
Taupiri
Gordonton
Horotiu
Ohaupo
Tirau
Putaruru
Otorohanga
Matangi