Tighten bolts/studs evenly working back and forth, assuring even pressure distribution on cover. Tighten until bolts/studs bottom out on head. Fully tighten, 8Nm (6 ft-lb) (10mm socket 3/8” / 3/8” torque wrench & extension).
How do you tighten a valve cover gasket?
Tighten until your hand can’t tighten anymore (which SHOULDN’T be too tight) And that should be just tight enough. Any tighter and you risk busting a bolt.
Can I tighten valve cover bolts to stop leak?
If you have a missing bolt or screw, it should be replaced immediately. … When replacing both, make sure to use a torque wrench to torque the bolts to the factory recommended setting. If you tighten them too much, you can risk breaking the valve cover, and if too loose, they can fall out again or cause a leak.
Why should valve cover screws never be tightened excessively?
Valve cover bolts only need light tension. Too much and you crush the gasket, spoiling the seal. Tightening too much guarantees more leaks. Especially with the rubber gaskets of that and many other newer cars.
Do you use Loctite on valve cover bolts?
The proper bolt for valve cover has radial ridges or splines running from center to outside, no washer, no Loctite.
What is the torque on valve cover bolts?
Torque the valve cover bolts to 5-6 ft/lbs, making sure gaskets do not slip out of position. Proper torqueing will help to ensure that your covers do not leak oil.
Do you use sealant on valve cover gaskets?
Although valve cover gaskets don’t necessarily need sealers or cements, it’s a common practice to glue the gasket to the valve cover. There are a number of sealant choices, too. … 1, RTVs or Permatex High Tack gasket sealant work well.
Can a leaking valve cover gasket cause rough idle?
As oil leaks from the valve cover gasket, the oil will end up running down till it gets on the exhaust manifold or pipes. As the engine gets hot while idling or running the car, the exhaust will get hot and the oil. As soon as this happens, you’ll see white smoke coming from under your hood. What is this?
Is a valve cover leak serious?
The short answer is, yes. If your engine is losing oil, running the car for too long without an inspection and repair can cause permanent damage. If the gasket is worn out, it will leak engine oil and the top of the engine will be likely be covered in oil.
How long should valve cover gaskets last?
When running your vehicle, the valve cover will have to do its job and keep the oil from leaking out. Most of the gaskets on your car last anywhere from 20,000 to 50,000 miles. Picking the right gasket for your valve cover is not easy due to the wide variety of options out there.
What size are Chevy valve cover bolts?
Size: Bolts are 1/4″ – 20 Thread pitch.