Sounds like dried fuel in the unit. You can disassemble the two halves but there is no gasket and you need to use a special sealer when re-assembling. Some local mechanics have used one of the loctite products but I don't know which one.
There is a control module on the side (don't remember the name). A better solution is to remove this module & to completely submerge the unit in carb cleaner for about a week. You'll need to hold the plunger down so that the cleaner can more easily enter the upper chambers. Thanks, Tom Hargrave www.kegkits.com 256-656-1924 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Trampas Sent: Monday, July 09, 2007 7:22 AM To: 'Mercedes Discussion List' Subject: Re: [MBZ] CIS rebuild kit Thanks to everyone, however I have put complete set of new injectors in the car. What I am looking for is the diaphragm for the CIS unit such that I can remove unit and clean out. I have tried to clean unit out, well as much as possible, but it appears that there is some solid trash in the unit and/or the diaphragm is not operating correctly. Initially at idle I was getting zero fuel on one cylinder (also tried different injector) after removing CIS unit and spraying CIS unit with carb cleaner I was able to get some fuel at idle, which improved the miss a bit. But it still is not correct. If I can not get a rebuild kit for the CIS unit I guess I could build a EFI system for the car and/or spend $1200 for a new CIS unit. Trampas -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of E M Sent: Sunday, July 08, 2007 11:17 PM To: Mercedes Discussion List Subject: Re: [MBZ] CIS rebuild kit I use to put the injector in a clean plastic water bottle and life the float and watch it spray. Not with the engine running of course. Careful, you are dealing with raw fuel, and with a CIS< it's under a LOT of pressure!! CIS is "Continous Injection System". Simple and durable system. I think some of the injectors also have small screens in them, as a last line of defense if the fuel filter misses something?? More often than not, I think they just gum up a little. No moving parts in them, so you can try to clean them somewhat. Good luck, Ed 300E On 08/07/07, Tom Hargrave <[EMAIL PROTECTED]> wrote: > > >From my experience, your issue is more likely a worn out injector. They > are > just mechanical poppet valves & the spray pattern suffer badly at idle, > where the least fuel flows. > > In case you did not already know, the fuel distributor does not act like a > diesel distributor, where pulses are sent to each cylinder. The injection > system continuously sprays fuel through all injectors, even at idle. You > can > imagine the very slight spray pattern at idle. > > Thanks, > Tom Hargrave > www.kegkits.com > 256-656-1924 > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Trampas > Sent: Sunday, July 08, 2007 7:07 PM > To: 'Mercedes Discussion List' > Subject: [MBZ] CIS rebuild kit > > Does anyone know if you can buy a rebuild kit for a CIS unit? I have > narrowed down the slight miss at idle on my 560SEL to a cylinder not > getting > fuel at idle. > > > > Trampas > > _______________________________________ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > _______________________________________ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
