I recently purchased 1987 Civic without fuel injection (carbureted). It has less then 100k miles on it and is in great condition. The other day I replaced the secondary fuel filter (the little one between the fuel pump and carb) as I have no idea if it has ever been replaced. Now the damn thing refuses to idle. When I let my foot off the gas it just dies. It's driving me nuts. I have checked to make sure that all the vacuum lines are properly attached as I had to remove the air cleaner to get to the filter. I just don't get it. Does anyone have any thoughts on what could be wrong? Much thanks. --adam
(Adam) spake unto the masses in You still have something disconnected/broken. You've very likely got a massive air leak into the intake. Go back and check very carefully. Did you have to disconnect the PCV valve or anything? Also make sure none of those hoses are cracked near the ends. With a car that old, some of the hoses will be brittle enough to risk cracking around the ends where they meet the pipe they attach to. They can also get old enough to not go back as tight as they came off. -- TeGGeR® The Unofficial Honda FAQ http://www3.telus.net/public/johnings/faq.html How to find anything on the Internet or in Usenet Groups: www.google.com www.groups.google.com
You still have something disconnected/broken. You've very likely got a That brings up another good (read: stupid) question. Does anyone know where the stupid PCV valve is located? I've looked all over for it and found nothing. Thanks. --adam
You still have something disconnected/broken. You've very likely got a I just took a quick look under the hood and I was wondering if the PCV valve is seated in the valve cover with a short hose (1.5" long) leading to the blow by filter in the air cleaner. Ref.: http://www.honda.co.uk/owner/WorkshopManualCivic84-87/62sb200/12-21.pdf --adam
Would a cracked hose leading to the blow-by filter (from the valve cover) cause this problem? I'm at work right now without my tools so it's hard to get a good look at all of the vacuum lines. --adam
(Adam) spake unto the masses in ANYthing that causes a big enough air leak into the intake manifold (or the carburetor under the throttle plate) will cause stalling at idle. You need to follow ALL lines that lead from the intake manifold (or carb under the throttle plate) and follow them back to the other end. I do not know exactly where your PCV valve is. The page you reference in one other message says it is in the "breather chamber". You need to find this breather chamber, obviously. If it is same as the valve cover, that should be plainly evident. In any case, tracing all the lines back ought to reveal its location. A point you may want to check: Some cheap aftermarket PCV valves that are meant to stand vertically have a simple ball bearing on a seat. If this valve gets tilted upside down, the ball can fall out unnoticed, creating a giant air leak. Maybe not the case here, but worth investigating. Also, make sure the carb is tight down on its mounting gasket or spacer. A loose carb can also cause stalling at idle. Make sure the intake manifold is tight against the head too. Grab it and wiggle hard up and down. No movement should be evident at all. -- TeGGeR® The Unofficial Honda FAQ http://www3.telus.net/public/johnings/faq.html How to find anything on the Internet or in Usenet Groups: www.google.com www.groups.google.com
