Re: Intake Manifold on XJ-6

[Randy Wilson <randy@taylor.infi.net>]

>I have a question about the intake manifold on my 1986 XJ-6. At the rear
>end of the manifold on the bottom side (opposite to where the air intake
>comes in from the top) there is a small diameter tube about 3/4 inch long
>that looks like a connection for a vacuum line. I have no hose hooked to
>this and when the car is parked I get oil leaking from this connection.
>What should be connected to this tube? Is it normal to have oil dripping
>from it?
>Thanks for your help on this one.


There's supposed to be a vacuum cap on it, plugged off. You're getting
oil in to the intake system. There is two places this can come in.
One is through the intake valve guides. Since the it's an "updraft"
intake manifold, oil that gets in would tend to puddle in the bottom
back. This would also cause a substancial amount of oil to stand on
the back of the intake valves. *Lots* of blue smoke on startup, and
probable fouled spark plugs. This isn't that liekly.
 The more probable cause is the oil is coming in through the breather
system. This can be caused by the breather screen getting clogged up.
Or, the rings are shot. 

Pull the breather off and clean everything out.



>Craig  


   Randy K. Wilson
     randy@taylor.infi.net

---

References:

• Intake Manifold on XJ-6
• From: "BAYER" <gfb@ioc.net>

---

• Prev by Date: Painting you Rocker Covers
• Next by Date: Re: XJS Batteries (Kirby Palm)
• Prev by thread: Re: Intake Manifold on XJ-6
• Next by thread: Re: Intake Manifold on XJ-6
• Index(es):
  • Main
  • Thread