Post by endru on Mar 9, 2013 22:57:06 GMT -5
I'm wondering if I can plug the fresh air inlet hose for the EGR, and if that would even be advisable or beneficial. I've done a lot of research tonight so let me try to give everyone the full picture of what I know and don't know.
First of all, I don't think I even have the full EGR system on my scoot. There is a thick black inlet hose (the one I'm thinking of plugging) that hangs out the back above the exhaust pipe. In-line on that hose is a one-way valve which I'm assuming contains a simple filter, which is contained within a small black cartridge. The hose continues to the valve cover, where it's connected to a metal piece that looks like a padlock. From the padlock (whatever that is) there is an S-bent metal tube that goes into the head. This is the part that people usually block off with a blocking plate. I'm guessing that inlet on the head directs the incoming cool air into the exhaust manifold or possibly the combustion chamber directly, I really have no clue. Either way, I don't believe this is a full EGR, because that would include exhaust gases being mixed with that cool air coming in, but there is no exhaust gas hose coming into the system, there is no sign of an EGR valve, unless it's that padlock thingy, and there is no 2nd vacuum line from the intake manifold, just the one which controls the fuel petcock. So what is all this that I have? Maybe the framework for an EGR system? If this little system I have is meant to cool the combustion chamber in order to decrease emissions, wouldn't it also be hurting performance?
Like I mentioned, most people block off the EGR intake on the head using a plate that they either fabricate or buy. Why not just plug the inlet hose with a bolt or something? Before I went off and tried this, I thought I'd post to the forum to see if I understand this thing correctly and what the potential results would be.
Oh and I googled this image of an EGR valve cover, which looks pretty much just like mine.
First of all, I don't think I even have the full EGR system on my scoot. There is a thick black inlet hose (the one I'm thinking of plugging) that hangs out the back above the exhaust pipe. In-line on that hose is a one-way valve which I'm assuming contains a simple filter, which is contained within a small black cartridge. The hose continues to the valve cover, where it's connected to a metal piece that looks like a padlock. From the padlock (whatever that is) there is an S-bent metal tube that goes into the head. This is the part that people usually block off with a blocking plate. I'm guessing that inlet on the head directs the incoming cool air into the exhaust manifold or possibly the combustion chamber directly, I really have no clue. Either way, I don't believe this is a full EGR, because that would include exhaust gases being mixed with that cool air coming in, but there is no exhaust gas hose coming into the system, there is no sign of an EGR valve, unless it's that padlock thingy, and there is no 2nd vacuum line from the intake manifold, just the one which controls the fuel petcock. So what is all this that I have? Maybe the framework for an EGR system? If this little system I have is meant to cool the combustion chamber in order to decrease emissions, wouldn't it also be hurting performance?
Like I mentioned, most people block off the EGR intake on the head using a plate that they either fabricate or buy. Why not just plug the inlet hose with a bolt or something? Before I went off and tried this, I thought I'd post to the forum to see if I understand this thing correctly and what the potential results would be.
Oh and I googled this image of an EGR valve cover, which looks pretty much just like mine.
Attachments:
..BAD TO THE BONE..