Okay, I'm replacing my PCV hose so that I can use my new air cleaner. Can I just pull the hose out of the valve cover and stick in the new one, or do I have to take the valve cover off to remove the old hose?

Thanks!

 

It should just pull right out of the valve cover. If you are looking at replacing the rubber hose that goes from the PCV valve to the air cleaner a piece of 3/8" rubber fuel line will work.

 

The PCV goes into the valve cover rubber grommet, not the hose. Do you need a pic? I believe I have the various pieces in the basement.

*Edit*-I have found them now. This is a GM PCV in the driver's side of an L-82 valve cover.




[Modified by paul79, 6:34 PM 1/31/2003]

 

Captain -
Like Paul says, the valve cover should have a rubber grommet in it. Sticking in this rubber grommet is the PCV Valve. Off the PCV should be the rubber hose going to the base of the carb. You should be able to yank the PCV right out of the valve cover, and the rubber hose should pull off the PCV. You can replace any of these components without pulling the valve cover. You can also re-arrange things any way you want, as long as you retain the PCV valve feature, and keep the PCV hooked up to the base of the carb.

If you're talking about the larger rubber hose going from the passenger-side valve cover to the air cleaner (about the size of a heater hose), this is the "air inlet" for the PCV system. This hose can be yanked out of the valve cover, replaced, and hooked up to the air cleaner, or it can be replaced by a push-in filter cap in the valve cover. The stock system runs from the valve cover to the air cleaner, and a PCV filter is installed inside the air cleaner housing to assure than only clean air enters the crankcase. It is important that you retain the air inlet system in such a fashion that filtered air enters the crankcase. You can do this by running a hose from the valve cover to the base of your new air cleaner (thus providing filtered air to the system), or by simply installing a push-in filter cap in the valve cover. The push-in filter caps have the disadvantage that they will make your valve cover more "greasy" over time as they vent the crankcase fumes, so you're better off just running the hose up to your air cleaner if you can.

 

As Lars noted, this pic shows the passenger side vent tube to the air cleaner that completes the PCV crankcase system.

 

I'm not sure why you would need to change the pcv valve hose to add a new are cleaner (pics would help), but might need to do something with the crank case breather on the passanger side.

If this is what you are talking about then you can buy a replacement that looks like a little air cleaner with a crome lid. The old one pulls right out and the new one pops right in, no valve cover removal. I have one and think it looks pretty cool.