moshem74 Posted November 30, 2004 Share Posted November 30, 2004 hi i have this part and no-one can tell me what it is. its connecting the apper part to the vacum and the middle pipe to the engine and the down pipe to the open air under the car. why do i need this part? can i disconect it ,take it out , close the vacum and let the pipe that come from the engine be free under the car, will the engine will work better? pease i asked a lot of places and no-one know what it is or what to do with that. anyone who know, i'll be happy. here are some pic: http://www.carsforum.co.il/vb/attachment.php?attachmentid=20902 http://www.carsforum.co.il/vb/attachment.php?attachmentid=20903 http://www.carsforum.co.il/vb/attachment.php?attachmentid=20904 http://www.carsforum.co.il/vb/attachment.php?attachmentid=20905 every one in his subaru have this thing but no-one know for what? i chacket this thing when it conecting to the engine: whan the vacum become strong-this oart have diafragme that let the pipe go free-let the gases frome the engine to go out,but only whan the vacum is strong-whan i press the gas. whan the vacum is slow, whan i'm not pressing the gas- the pipe is close and nothing can go out from the pipe (that come from the engine). it's not better to leave it open all the time and let the engine work better-more free? thank you all for your fast answer. moshe. Quote Link to comment Share on other sites More sharing options...
moshem74 Posted December 1, 2004 Author Share Posted December 1, 2004 i asked today some places...no one know what i'm talking about...imazin everyone that have subaru carb have it in his engin ,but no one know what for... Quote Link to comment Share on other sites More sharing options...
calebz Posted December 1, 2004 Share Posted December 1, 2004 Can't view the pictures. Requires a username and password. Quote Link to comment Share on other sites More sharing options...
northguy Posted December 1, 2004 Share Posted December 1, 2004 It might be nice to know information on the make, year and model of the car. Quote Link to comment Share on other sites More sharing options...
moshem74 Posted December 1, 2004 Author Share Posted December 1, 2004 It might be nice to know information on the make, year and model of the car. subaru leone DL 1600cc automatic carb. Quote Link to comment Share on other sites More sharing options...
Snowman Posted December 1, 2004 Share Posted December 1, 2004 If we could see the pictures, it would probably be easy to identify. Quote Link to comment Share on other sites More sharing options...
Mudboat Posted December 1, 2004 Share Posted December 1, 2004 Ah..... Sounds like your crankcase vent tubes from the valve covers. One side connects to the pipe on the intake, which uses intake vacuum to open and close the ball valve, while the other side vents to atmosphere. The crankcase must be vented, but should also operate under a slight vacuum (thus the reason for one side going into the intake). I think you need to leave these as they are. Positive pressure on your crankcase is not a good thing.... Quote Link to comment Share on other sites More sharing options...
moshem74 Posted December 2, 2004 Author Share Posted December 2, 2004 hi if you can't see the pic's, here they are: now, please , if someone know what it is, or why do i need it , what will happand if i'll take it out, (and close the vacum pipe that connect to it)? does my engine will work better if the gasses will go out faster? Quote Link to comment Share on other sites More sharing options...
rallyruss Posted December 2, 2004 Share Posted December 2, 2004 still cannot see the pics. if you are not sure what it is then mabey it would be best to leave it alone. Quote Link to comment Share on other sites More sharing options...
moshem74 Posted December 2, 2004 Author Share Posted December 2, 2004 here are some pic: http://www.carsforum.co.il/vb/attac...achmentid=20902 http://www.carsforum.co.il/vb/attac...achmentid=20903 http://www.carsforum.co.il/vb/attac...achmentid=20904 user name is: m&t password is: puchicho thank you all. Quote Link to comment Share on other sites More sharing options...
northguy Posted December 2, 2004 Share Posted December 2, 2004 Sorry Moshem, can't access the pictures. Maybe you could draw a schematic or something. Quote Link to comment Share on other sites More sharing options...
All_talk Posted December 2, 2004 Share Posted December 2, 2004 I don’t recognize it, but here are the pics… Gary Quote Link to comment Share on other sites More sharing options...
moshem74 Posted December 2, 2004 Author Share Posted December 2, 2004 hi now i dont see it. stupit pic's if you are the only one who saw it(wow ) maby you can tell better than me what is this mistery. moshe. Quote Link to comment Share on other sites More sharing options...
Snowman Posted December 3, 2004 Share Posted December 3, 2004 I've NEVER seen anything like that. Where do each of the lines go to? Quote Link to comment Share on other sites More sharing options...
moshem74 Posted December 3, 2004 Author Share Posted December 3, 2004 hi one line (the blue one) connect to the vacum with T connector. the middle pipe connecting to the engine upper part. low pipe doesnt connect to no where. this part works like this: whan the vacum is normal - all the lines are close. whan the vacum is high(whan you press the gas) this part have inside it diafragma that let the lines open,whan the vacum is high, its open the line and let the gases from the engine upper part , to go out to the air - it has a pipe that goes under the car. now , why do i need this part for? do my engine will work better without it? i can close the vacum from the engine- the line that connect to this part , and let the line that connect to the engine - set it free to the air - that the gases can go out free all the time. everyone with subaru with carborator have this part on the side of the carb- near the battery. thank you all for your fast answer moshe. Quote Link to comment Share on other sites More sharing options...
Snowman Posted December 3, 2004 Share Posted December 3, 2004 Interesting...... Seems that it's some sort of regulator for the PCV (positive crankcase ventilation) system. Does the vacuum line go to the carburetor or to the intake manifold? (This is mostly for educational value for those of us who haven't seen one.) If it is part of the PCV system, I would leave it alone, as the factory setup works well and generally doesn't like being tampered with. Quote Link to comment Share on other sites More sharing options...
NorthWet Posted December 6, 2004 Share Posted December 6, 2004 Interesting...... Seems that it's some sort of regulator for the PCV (positive crankcase ventilation) system. Does the vacuum line go to the carburetor or to the intake manifold? (This is mostly for educational value for those of us who haven't seen one.) If it is part of the PCV system, I would leave it alone, as the factory setup works well and generally doesn't like being tampered with. Sounds like his car uses a road draft tube. This was used in the USA prior to the Positive Crancase Ventilation (PCV) system. It sounds a little more sophisticated than the 1950-1960s road draft tube. Quote Link to comment Share on other sites More sharing options...
moshem74 Posted December 6, 2004 Author Share Posted December 6, 2004 Sounds like his car uses a road draft tube. This was used in the USA prior to the Positive Crancase Ventilation (PCV) system. It sounds a little more sophisticated than the 1950-1960s road draft tube. can i take this thing out ? or to leave it the way it is? why it's there? can someone know? thank you all. moshe. Quote Link to comment Share on other sites More sharing options...
PoorManzImpreza Posted December 6, 2004 Share Posted December 6, 2004 LOL ok Let me clear this up..the valve in the pics is a carb fuel bowl vent valve what it does is catch the fuel bowl vapors from the carb and vent them to atmosphere it also prevents raw fuel from escaping the fuel bowl of the carb through the float valve.. Correct hook up is middle connector to fuel bowl on top of carb top connector to intake vacuum source bottom connector to a rubber hose that goes to the left frame rail where the support plate for the engine crossmember mounts you know that hole there in the middle of the plate that goes straight through the frame rail and out the bottom of the engine crossmember... My advice is DO NOT remove it unless you want raw fuel vapor in your engine compartment and in some cases liquid fuel.. the reason why most y'all US of A guys don't recognize it is because up north nearly all the ea82 "L-series" cars had evap emissions control (with evap line charcoal canister vapor seperator and purge solenoid) and that valve didn't exist as far as I know.. Quote Link to comment Share on other sites More sharing options...
moshem74 Posted December 6, 2004 Author Share Posted December 6, 2004 LOL ok Let me clear this up..the valve in the pics is a carb fuel bowl vent valve what it does is catch the fuel bowl vapors from the carb and vent them to atmosphere it also prevents raw fuel from escaping the fuel bowl of the carb through the float valve.. Correct hook up is middle connector to fuel bowl on top of carb top connector to intake vacuum source bottom connector to a rubber hose that goes to the left frame rail where the support plate for the engine crossmember mounts you know that hole there in the middle of the plate that goes straight through the frame rail and out the bottom of the engine crossmember... My advice is DO NOT remove it unless you want raw fuel vapor in your engine compartment and in some cases liquid fuel.. the reason why most y'all US of A guys don't recognize it is because up north nearly all the ea82 "L-series" cars had evap emissions control (with evap line charcoal canister vapor seperator and purge solenoid) and that valve didn't exist as far as I know.. now everything is clear. thank you very much for the information. moshe. Quote Link to comment Share on other sites More sharing options...
Snowman Posted December 6, 2004 Share Posted December 6, 2004 Aha!! That's really interesting. Learn something new every day (too bad I probably forgot two old things ). Quote Link to comment Share on other sites More sharing options...
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