b_have Posted May 5, 2006 Share Posted May 5, 2006 Can anyone tell me for sure what this one -way valve does? Whilst the engine is out I have removed all the uneccesary gubins (pressure tank/vacume lines that were assoc with the twins etc) But am a little baffled by this. Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted May 5, 2006 Share Posted May 5, 2006 looks like a pipe to me..... my work here is done Link to comment Share on other sites More sharing options...
LeeT Posted May 5, 2006 Share Posted May 5, 2006 i removed that a long tome ago and had no problems. cant remember what it used to do now though. isnt it something to do with the charcoal canister? Link to comment Share on other sites More sharing options...
b_have Posted May 5, 2006 Author Share Posted May 5, 2006 looks like a pipe to me..... my work here is done Stick to plug changing Link to comment Share on other sites More sharing options...
b_have Posted May 5, 2006 Author Share Posted May 5, 2006 i removed that a long tome ago and had no problems. cant remember what it used to do now though. isnt it something to do with the charcoal canister? Think you are right Lee, it seems to head off in that direction, but I removed that ages ago. Thought it may have been connected to the pressure tank (which I have also binned) Link to comment Share on other sites More sharing options...
SimonB Posted May 5, 2006 Share Posted May 5, 2006 It's the check valve for the EVAP system (the charcoal cannister). I think it's basic job is to stop boost pressure from presurising the cannister when you're under boost, but I must admit I don't really understand how the purge on the cannister works looking at the plumbing diagram! Basically you have four lines going into the cannister. The bottom one lets fresh air in when the cannister is purged. One goes to the fuel tank, one goes to the intake and the other gets Td off to that check valve and to a VSV that controlls the purging of the cannister. Link to comment Share on other sites More sharing options...
b_have Posted May 5, 2006 Author Share Posted May 5, 2006 Cheers Simon, right its coming off and into the now HUGE box of bits not required. Engine bay looking remarkably empty now, must be getting near 1400KG Link to comment Share on other sites More sharing options...
Ian C Posted May 5, 2006 Share Posted May 5, 2006 Yeah, it's part of the meissiones (OMG that typo stays for posterity) ahem, emissions system. I ditched everything after the check valve but as it seems to stop the engine sucking in air through that little apeture I left that in and tucked it under the throttle body. The emissions system is very complex, it circulates fuel vapours and so forth around in many varied ways depending on engine speed, throttle position, load, etc. Which means I couldn't be arsed to fathom it all out before storing it on the shelf Probably explains the faint smell of petrol I now permanently have in the garage -Ian Link to comment Share on other sites More sharing options...
b_have Posted May 6, 2006 Author Share Posted May 6, 2006 Yeah, it's part of the meissiones (OMG that typo stays for posterity) ahem, emissions system. I ditched everything after the check valve but as it seems to stop the engine sucking in air through that little apeture I left that in and tucked it under the throttle body. -Ian Actually it does suck, but not blow iyswim I'm gonna blank it. Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now