David, The symptoms certainly point towards a condenser breakdown, but a lot of experience with similar symptoms has taught me sometimes at considerable expense to never discard fuel supply problems either eg blocked filter or leaking valve in pump etc. A lean mixture will cause a backfire with throttle open under load i.e. fuel demand especially with twin carbies.
regards Terry -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of David Andrews Sent: Thursday, 31 July 2003 10:09 PM To: [EMAIL PROTECTED] Subject: Wierd and annoying ignition breakdown G'day all, I've got ignition dramas in my 240Z. Symptoms: The car is fine at any throttle at low speeds. The car is fine for about 20-30km's on the highway too. After this I get ignition breakdown at anything past very light throttle settings (anything past 12 inHg). So when you go up a hill ignition breaks down. It also does something which appears to be very similar when you turn right? And its worse at speed if the road is bumpy and weavy. I know it is ignition breakdown because if you leave the throttle down it'll backfire. Action Taken: Replaced spark plugs. No change. Replaced distributed. No change. Replaced coil. No change. Replaced battery. No change. Questions: The car has a little cylinder (2cm long and 1cm diameter) which is bolted to the chassis with the coil. This cylinder has a wire running to the side of the coil which has two connections. Now where this wire joins to this little cylinder is very dodgey. So my questions are: is this little cylinder thing the resistor? If so, is it possible that the wire is not making good connection.. and not resisting enough. This doesn't matter for a while (the 20-30kms) while the coil is still cold, but eventually it gets heat soaked and the voltage drops causing my problem. Does this sound plausible? Which leads me to: should I be able to get one of these things from a repco/bursons? Ta, Dave --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[EMAIL PROTECTED]/ ---------------------------------------------------------------------
