wish I had a picture.

'92 8v tracker 1.6L

whilst doing a head gasket, I noticed a weird connector between the valve cover breather pipe and the aluminum air plenum.  It had water lines going to it.

Uhhhh - Houston, WTF, over?

probably and air intake pre heater hose for cold days. my 16 vavle has that and an i.a.c. heater also.

probably and air intake pre heater hose for cold days. my 16 vavle has that and an i.a.c. heater also.

No, its not on the air intake - it's on the 1/2-inch rubber line from the valve cover that vents crankcase fumes to the intake.

It's a metal ring about the size of a quarter, with a 5/16 coolant supply and a 5/16 coolant return line.

I've never seen anything like it.  I can't imagine why crankcase vapors would need to be temperature-regulated, or that this small donut would actually do much as vapors passed through it.

Anybody?

Quote from: mrfuelish on June 02, 2007, 11:08:44 AM

probably and air intake pre heater hose for cold days. my 16 vavle has that and an i.a.c. heater also.

No, its not on the air intake - it's on the 1/2-inch rubber line from the valve cover that vents crankcase fumes to the intake.

It's a metal ring about the size of a quarter, with a 5/16 coolant supply and a 5/16 coolant return line.

I've never seen anything like it.  I can't imagine why crankcase vapors would need to be temperature-regulated, or that this small donut would actually do much as vapors passed through it.

Anybody?

Sounds like it could be the PC Valve, got a pic?

[/quote]
Sounds like it could be the PC Valve, got a pic?
[/quote]

No pic.  Car is 200 miles away at the moment....

Definitely not a PCV valve.  It's straight through - no vlaves or restrictions whatsoever.  The vented fumes pass straight through it.....