Hi, i can't get the spark on the first cylinder and the forth one cracked. End the coil packs are ok.
And the spark plug are new NGK BCPR7ES11.
Hi, i can't get the spark on the first cylinder and the forth one cracked. End the coil packs are ok.
And the spark plug are new NGK BCPR7ES11.
How have you tested the coilpack?
The only time i have had a cracked spark plug was from my spark plug socket not being seated on the plug properly.
Where is the plug cracked? Any pics
Last edited by gacosi; 24-02-2015 at 22:21.
1,2,3,4 cylinder
So how have you tested the coilpack? Thats where i would start, try switching the coilpack to another cylinder and see if the mis-fire moves with it.
Try replacing the ignition amplifier.
Do a compression test.
Mark cas position (if you dont have a timing light) turn on ignition, get a long handled screwdriver and put the handle to your ear and other end to each injector individually and turn cas manually then listen for each injector to click. To make sure injectors are firing!
You remembered to re-gap the plugs to 0.9 or 0.8mm ????
Ok, will do that today. Thanks.
You are buying genuine plugs as well aren't you??
Not some fakes off a random eBay seller??
The ES11s come pregapped at 1.1mm. At that gap, they will spark just fine. The only problem might be at high boost they may blow out on wide-open-throttle when coming on boost resulting in a hesitation.
If you have no spark at all on one cylinder, it must be either the coilpack loom, the coilpack or the spark plug.
NGK produce epic plugs but its still possible that a duff one got past their quality control.
How do you know it is not sparking ?
It's clean as a whistle??Originally Posted by Jonny Wilkinson
Still is it that its not sparking or the injectors not injecting!
Good point.
Just wondering if he is pulling the plugs and earthing them and not seeing a spark with them out of the cylinders or whether he is attaching an inline light that shows there is no electric getting to the plug or what ?
I think he needs to go through the things i suggested in post #5 then report back.
Earthing the coilpack and checking for spark is or can be awkward by yourself.
Ok so got some good news the first cylinder have 0 compression and cylinders 2,3,4 have 160
You call that good news...........
Remote chance it's something like stuck rings?
Especially as it's actually zero, not just low.
or a hole in the piston.
Ooo and the pistons are new wiseco and rings.
Ohh in that case lets hope its a fooked valve lol
Has it run since being rebuilt ?
It could be as simple as a failed head gasket if it No 1 and it has blown through from the cylinder to the outside.
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