Misfires on 5 & 7.
Misfires on 5 & 7. Last friday I was spraying (75 shot on my car. 224 XE-R cam and tr55's gapped at .057) I was at the top of 3rd gear and my car started misfiring... I got out of it, it flashed at me for a little while, then quit about a minute later. Car started running perfect again.
Saturday I decide to bite the bullet and change out the plugs. I ended up only getting the driver's side 4 swapped out with TR6's gapped at .039". The car has ran perfect all week.
Tonight I am leaving class and I get on the feeder and blip the throttle a little bit, i get an SES code, it starts flashing. Getting bad misfires. Autotap reports me getting a MASSIVE amount of misfires on cylinders 5 & 7. I pulled #5 and it was caked in oil (My valve stem oil seals are screwed... going to fix that soon). I had expected this. I went and got my TR55's that I had pulled out, cleaned them up a little bit and put them back in the car (replaced all 4 on the driver's side). Started the car up, still getting misfires on 5 & 7. I swapped the plug wires between 3 & 5. Still getting misfires on 5 & 7.
Does anyone know what could be causing my car to all of a sudden just lose cylinders 5 & 7? I'm going to try moving some coil packs around tomorrow and see if that helps any, but are there any other ideas?
FWIW. I'm running REV-1116 dual springs and have about 2500 miles on them.
Am I correct in thinking that the cylinders are numbered this way?:
8 7
6 5
4 3
2 1
(Front of car)
TIA!
Kris
Saturday I decide to bite the bullet and change out the plugs. I ended up only getting the driver's side 4 swapped out with TR6's gapped at .039". The car has ran perfect all week.
Tonight I am leaving class and I get on the feeder and blip the throttle a little bit, i get an SES code, it starts flashing. Getting bad misfires. Autotap reports me getting a MASSIVE amount of misfires on cylinders 5 & 7. I pulled #5 and it was caked in oil (My valve stem oil seals are screwed... going to fix that soon). I had expected this. I went and got my TR55's that I had pulled out, cleaned them up a little bit and put them back in the car (replaced all 4 on the driver's side). Started the car up, still getting misfires on 5 & 7. I swapped the plug wires between 3 & 5. Still getting misfires on 5 & 7.
Does anyone know what could be causing my car to all of a sudden just lose cylinders 5 & 7? I'm going to try moving some coil packs around tomorrow and see if that helps any, but are there any other ideas?
FWIW. I'm running REV-1116 dual springs and have about 2500 miles on them.
Am I correct in thinking that the cylinders are numbered this way?:
8 7
6 5
4 3
2 1
(Front of car)
TIA!
Kris
Re: Misfires on 5 & 7. I pulled my driver's side valve cover today. I broke the exhaust spring on the #5 cylindar. I understand this would make misfires on #5, is it also very common that this is causing the problems on #7 as well (and a few misfires on #2 also).
In my book, the dual springs have paid for themselves now. I'm sure the spring weakened big time last friday night, then kind of held together until last night where it bit the dust and snapped into 3 peices. The inner spring held it's own and survived a 30 mile trip hobbling it back to the house. I ordered some replacements and will be pulling all the springs soon to inspect and replace the valve seals.
In my book, the dual springs have paid for themselves now. I'm sure the spring weakened big time last friday night, then kind of held together until last night where it bit the dust and snapped into 3 peices. The inner spring held it's own and survived a 30 mile trip hobbling it back to the house. I ordered some replacements and will be pulling all the springs soon to inspect and replace the valve seals.
