How do you open a petcock on a radiator?

How do you open a petcock on a radiator?

If it is parallel to the direction of flow (in line), then it is OPEN. Hope this helps. On my 63 Vette, the radiator petcock opens by turning it counterclockwise (like you were unscrewing a standard right hand bolt). However, it actually has a left-hand thread that moves in (toward the radiator) as you open it.

How do you drain the radiator on a 2000 Chevy Blazer?

2000 Blazer: the drain petcock located.. radiator

1. Ensure that the system has cooled, then remove the radiator filler cap.
2. Place a drain pan under the radiator drain cock.
3. Install a tube on the drain cock, if necessary.
4. Place the end of the tube in the drain pan.
5. Open the drain cock completely.

Where is the radiator drain plug on a 2000 Chevy Blazer?

The petcock is on the passenger side, underneath the lower radiator hose. 1/4″ ratchet will unscrew it. Do a quick search for “petcock” to find out some other issues. The petcock is on the passenger side, underneath the lower radiator hose.

How does a drain petcock work?

A petcock is a small shut-off valve used to control the flow of liquid or gas. A radiator drain petcock valve, or shut-off valve, allows the radiator to be drained without removing it from the vehicle. This simple valve or bolt can be easily unscrewed to drain, then sealed back to fill.

Is a petcock necessary?

The petcocks purpose is to prevent fuel flow from the fuel tank to the motorcycles carburetors. They have this in part because motorcycles spend a large chunk of their lives parked on a sidestand. And the petcocks prevent the fuel from overloading the float seals on the “downhill” side of the bike.

Can a fuel petcock go bad?

If the bike runs on RES and PRI but has issues running in ON,then the petcock is bad. If you disassemble the petcock,you will more than likely damage the internal diaphragm.

Why is my petcock leaking?

At worst, fuel fills the cylinder, eliminates compression and prevents the piston from moving. Once the petcock is “off” you’ll notice gas leaking out of the face of the petcock. That’s when you know it’s the petcock and not anything else associated with the fuel system.

How do I tighten my Petcock?

The trick is to snug everything down to the tank while keeping the petcock valve facing outwards. Screw the whole assembly on, and once its too tight to turn anymore by hand, start ‘unthreading’ the petcock so it lines up where you want it, and then tighten it just a little more.

How do I change my Petcock?

1. Step 1: Drain Fuel Tank. With the petcock closed, remove the fuel lines connected to it.
2. Step 2: Remove Old Petcock. Use a box wrench to unscrew the “gunk collector” at the bottom of the petcock, then a pair of pliers to remove the inner screen and o-ring.
3. Step 3: Install New Petcock.
4. Step 4: Replace Tank on Bike.

Which way is on for a petcock?

You are in the “ON” position. Counter clockwise is “OFF”. Clockwise is “RESERVE”. Check it by turning to the off position and pull off the gas line.

How do you test a vacuum petcock?

If fuel comes out when you suck (create vacuum) on the vacuum hose on the “on & reserve” setting then the petcock is operating properly! Fuel should flow on the “prime” setting with no vacuum applied to the hose. If fuel is flowing ALL the time with no vacuum applied then you have a bad vacuum diaphragm.