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What is this?

Mike_Pollock

Mike_Pollock

PCGB Member
Member
Hi
What is this - guessing a valve - but what for?
Its mounted on the rear of the inlet manifold on the 2.7.
Any ideas welcome!
http://www.flickr.com/photos/a9xxc/5623164424/in/photostream
Valve
 
Thanks Edd - not worked out Flickr!

Photobucket was down!

Thanks for that Riverside - but how does the heater need anything from the intake manifold?

Is it to get a vacuum for the heater controls?

If so why does it have a valve on it and not a straight connection like other vacuum dependant devices?

Trying to get it sorted in my head!

 
The heater controls are vacuum powered. There is a vacuum reservoir behind the bulkhead (just in front of the windscreen under the bonnet on the offside) to control the flaps & control valve for a few minutes after you switch off.

eta the vacuum valve is probably the nearby one-way valve to hold vac pressure when the car is switched off or at full throtte.
 
Sorry just had a look at the pic on my PC (I was using the telephone before, sorry). The large rubber tube coming from the inlet manifold if the vacuum feed to your brake servo, it should be easy enough to trace where the tube goes. No one-way valve (or any other kind of control) on that tube. The heater control valve is nearby & similar looking but obviously connects to a water hose going into the bulkhead.
 
Had a bit more of a look and I think its something to do with a breather system. The pipe goes under the inlet and connects to the oil filler assembly and continues on to the inlet tract just before the throttle body.

If this valve was not working - would it have an effect on the starting or idling?
 
It's refered to as a "heating tube" in PET.
Part number 944.616.104.00

Apparently some S also have this.

http://forums.rennlist.com/rennforums/924-931-944-951-968-forum/249419-944s-whats-this-thing.html
 
Thanks for that!
I dont understand what is actually does! Why does it has an electrically operated valve on it ?
The wiring and plug are in poor condition and I am wondering if it is the problem I have with the starting and tickover?
 
More investigations lead me to believe that it heats any oil drops in the breather flow to vapourise it, make it burn cleaner when it gets breathed in and to ensure that it is not liquid so it wont pool in the manifold.
Any further ideas?
 
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