If the exhaust valve is on the #3 cylinder (driver's side, frontmost cylinder), it is the one that gets the hottest in the aircooled VWs. It is also the one that is most likely to burn or get 'swallowed' (broken off and being rammed by piston). Usually sticking is caused by the valve guide being worn, so pulling the head is mandatory. Assuming it's really stuck open and not burned, here's something to try. Put the offending cylinder at Bottom Dead Center (farthest away from the valves), remove the valve cover and tap the stem of the valve with a plastic or brass hammer, or piece of wood between a regular hammer and the valve stem/spring retainer. It may pop back up. Turn the engine over by hand to see if it sticks again.
The intake valve is bigger.
Exhaust cam, is the cam that control valve timing on a DOHC, (DUAL OVERHEAD CAM) motor.
The Exhaust Gas Recirculation Valve on a 1989 S10 is located in the valve cover. It is toward the front of the motor.
Intake 25 Exhaust 30
Yes, usually when it is cold and needs more fuel to start. If the valve is hung open, exhaust floods the cylinder.
Sounds like a burnt valve, the gas is not burning because of no compression due to burnt valve and gas is pushed out of exhaust unburned
Intake- 0.20 exhaust- 0.25
The exhaust valve is always smaller.
.2mm for intake and .3mm exhaust. or .008in and .012in when the motor is warm. not sure for cold motor.
.006 intake and.008 exhaust
Exhaust coming out of the airfilter indicates a possibility of a few things. Motor has jumped time. Burnt Intake Valve It can also be that the valve lash is out of adjustment.
The exhaust valve gets hotter than the intake valve.