s'ko Posted October 19, 2004 Share Posted October 19, 2004 I replaced my air filter a few weeks ago and now it's badly clogged again. The only thing that I recently changed was an Accel coil. I will probably get rid of that thing and put back my stock coil to see how well my next filter fares. I also pulled a junkyard duty solenoid for my Hitachi carb. Those little pump like things that are located on the manifold. Before only one was ticking, now they both are ticking. Is that suppose to work this way? The filter looks like it's full of black dirt. The nozzle end of the air filter housing has black smoke there too. I am using the heater tube from the exhaust, but I have never seen the flap close to let exhaust air into the housing. Anything else people can think of that would cause this problem? Link to comment Share on other sites More sharing options...
RavenTBK Posted October 19, 2004 Share Posted October 19, 2004 Now the coil wouldnt have too much to do with your filter getting clogged. Nor would the exhaust heater. All it does is pull warmed air (not exhaust) from the stovepipe thats wrapped around the manifold to let warm air into the intake. Since it isnt exhaust, but air from around the pipe.. theres no reason why it could be the culprit. I'm useless for a possible solution.. but I am useful for knocking out what it aint. Heh.. it could always be that "thick" air out there in LA. Link to comment Share on other sites More sharing options...
mcbrat Posted October 19, 2004 Share Posted October 19, 2004 I replaced my air filter a few weeks ago and now it's badly clogged again. The only thing that I recently changed was an Accel coil. I will probably get rid of that thing and put back my stock coil to see how well my next filter fares. I also pulled a junkyard duty solenoid for my Hitachi carb. Those little pump like things that are located on the manifold. Before only one was ticking' date=' now they both are ticking. Is that suppose to work this way? The filter looks like it's full of black dirt. The nozzle end of the air filter housing has black smoke there too. I am using the heater tube from the exhaust, but I have never seen the flap close to let exhaust air into the housing. Anything else people can think of that would cause this problem?[/quote'] are you in a high smog concentration area? do you have any oil leaks at the front crank seal? take an old white rag/t-shirt and wrap it over the end of the intake tube and see what you get there. check it often and see if you can determine any patterning based on where you are driving it..... Link to comment Share on other sites More sharing options...
archemitis Posted October 19, 2004 Share Posted October 19, 2004 ya im kinda confused, do you mean clogged with oil? if so clogged pcv, too much blowby, or you left the cap off the oil fill tube =] Link to comment Share on other sites More sharing options...
s'ko Posted October 19, 2004 Author Share Posted October 19, 2004 are you in a high smog concentration area? yep, LA baby.....do you have any oil leaks at the front crank seal?I have oil leaks in the valve covers and the oil pans take an old white rag/t-shirt and wrap it over the end of the intake tube and see what you get there. check it often and see if you can determine any patterning based on where you are driving it.....There was no real change in driving pattern after i put on the coil. I am going to get a new air filter today and do the white t-shirt idea. Looks like it's getting clogged w/dirt or smoke particles. There is no oil in the air filter housing. Just black smoke residue in the nozzle and the housing outside of the air filter. I recently replaced the PCV valve. Link to comment Share on other sites More sharing options...
archemitis Posted October 19, 2004 Share Posted October 19, 2004 damn dude, wear a michael jackson mask when you go outside then =] Link to comment Share on other sites More sharing options...
s'ko Posted October 19, 2004 Author Share Posted October 19, 2004 nah.. it's more fun to drive around with an O.J. mask. maybe even a police officer mask and wave a baton around... Ok back to topic. Traced hoses from air filter housing. (will refer to this as housing from now on) one large hose goes to a round device located on the back of the engine on pass side. It has suction. what is this thing? Does this have anything to so with my problem? From what I can tell, it looks like what my manual calls a anti-afterburner valve. Gee I didn't realize I had afterburners on my EA81. Link to comment Share on other sites More sharing options...
subiemech85 Posted October 19, 2004 Share Posted October 19, 2004 it may very well be the cause of the problem and other driveability issues, dumping exhaust gas in the air filter housing or you could be picking up ash from mt. st. helens check your sparkplugs Link to comment Share on other sites More sharing options...
s'ko Posted October 19, 2004 Author Share Posted October 19, 2004 Hmm.. So my roommate was messing around with the soob and he noticed that the EGR valve was blocked with a piece aluminum. Someone took a soda can and cut it out and blocked up the EGR valve port. With the Accel or whatever I did recently the power increased and the hole developed in aluminum. This may explain the increased in debris in my air filter. He also noted a huge increase in power with the strip removed. He speculates that they did this to cheat smog. 1) How does the EGR system work? Obviously there is stuff that is suppose to move through it b/c it suddenly clogged my air filter. 2) What is the best way to clear that passage? 3) How would a blocked EGR cheat smog? What else do you think needs to be replaced in order to get it to pass smog. Thanks for the advice so far. I am actually kinda excited to get home and try it out. More power huh? Looks like I will have to replace my clutch sooner that I thought. BW Link to comment Share on other sites More sharing options...
archemitis Posted October 19, 2004 Share Posted October 19, 2004 well thats funny, the egr acutaly lets exhaust gas into your intake. if anything that would make your car slower... the exhuast gets let into the intake, past the filter housing, and direclty into one side of the engine. i would rebuild that aluminum blockoff plate, and put one back on. its supposed to reduce combustion champer temperatures, but if you ask me they are just bs, to make emissions come out lower. i dont run them on anything, and have no bad results at all. there are also air suction valves, they could be screwed, letting the exhuast direclty into your aircleaner housing. you can take the two big hoses, coming from the funny boxes connected to your exhaust flanges, by metal tubes, and plug the rubber ones with a spark plug, or something like that. thats my guess now that i think about it. the valves can break, and its a direclt link between the exh. and the int. Link to comment Share on other sites More sharing options...
archemitis Posted October 19, 2004 Share Posted October 19, 2004 o crap just read you need to pass smog.... i still say ditch the air suction valves, make sure your exhaust is sealed up, all the way back, and get your cat hot before you get it tested. assuming your cat isnt clogged =]. something funny: i had a brat from cali, with the feedback carb, and the o2 sensor in the exhaust... the o2 sensor was the same thread as a spark plug, what if you got your old coil and hooked it up to that, and made it spark inside your cat, just for the smog test, it should burn up any unburnt stuff Link to comment Share on other sites More sharing options...
BobBrumby Posted October 20, 2004 Share Posted October 20, 2004 yeh my friend was saying with old leaded cars (well his vc commodoor) if you put a spark plug just before the end of the tailpipe and hook up to a coil a couple of feet of fire should spew from the arse of it Link to comment Share on other sites More sharing options...
SubaSkeet Posted October 20, 2004 Share Posted October 20, 2004 yeh my friend was saying with old leaded cars (well his vc commodoor) if you put a spark plug just before the end of the tailpipe and hook up to a coil a couple of feet of fire should spew from the arse of it lets see the smog machine pick THAT up! Link to comment Share on other sites More sharing options...
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