Car Is Still Missfiring On Second Cylinder In From Gear Box Side.

[rallyeluke 0]

right i have a question for you.

 

 

as you may be aware my car is not firing on the second cylinder in from the gear box side, the injectors are working fine, i know this as i took the inlet manifold off and fuel was spraying out of all of them,

 

there is a spark i know this as i have tried 2 different plugs and each has a strong clean spark, my problem is when i take either the injector plug or the ht lead off of the cylinder that is second in from the gearbox side it does not effect the running, but when i take the injector lead or the ht lead off any other cylinders the car nearly stalls, its miss firing throughout the rev range.

 

 

i dont know what could be causing this problem?? any ideas?

 

i have swapped the injector plugs around between 2&3 cylinder and the plug from the bad cylinder fires the injector in the cylinder next to it with no issues at all.

 

 

cheers lucas

[GLPoomobile 958]

Poor compression on that cylinder?

[rallyeluke 0]

thats the impression im starting to get, just fitted new head gasket and re con head, run it in for 400 miles with no issues, thrashed it a couple of times, then drove as normal and now it miss fires, i ordered a compression tester off ebay so should have that soon then i will check compression.

 

 

if it is low compression what will it be? a stuck lifter?

 

 

if so can i sort that with head in place? cheers lucas

[chris1986 1]

did you get the head skimmed when you had it re con, this sounds exactly what mine did, this was the head gasket. i also got the head compression tested and skimmed and then i put it back together and worked a treat

[rallyeluke 0]

head was skimmed, new valve stem seals, etc etc

 

 

that must of been a massive issue with the head gasket for it not to fire chris? im thinkin (wish i had a compression tester here right now as i could give you factual information) that the inlet valve is not seating and this is causing zero compression hence why it wont fire.

[welshpug 1,657]

did you check the valve clearances when you put it back together? i.e are you 100% that the shims and buckets went back in the same place or was it re-set?

[rallyeluke 0]

i was told it was a bolt on job for myself by the guy that did the head, ie. everything set up. cheers

[rallyeluke 0]

compression was

 

from cambelt side

 

1. 190

2. 190

3. 25

4. 190

 

all sorted now. was a sticking lifter on number 3 all at the same compression now. (the compression gauge was a push in one so take results with a pinch of salt, but suffice to say they all have decent compression now)

[steve@cornwall 100]

Had a similar prob. a while ago after doing some work - What a tw@t I felt when finding I'd put the HT leads on the wrong way round