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View Full Version : Spark plugs supposed to look like this?


onesicklambo
12-13-2007, 09:09 PM
my car started a bunch of times..then all of a sudden didnt start. WTF I pulled the plugs to check for spark and they look like this.
http://i2.photobucket.com/albums/y14/bmxpert57/photo2-2.jpg
RUnning really rich??? They have been in for aprox 15miles which is all my motor has gone. I steel wooled the black stuff off and still wont start! There is spark from all coil packs. Is there any other diagnostics? TPS @ .5v. When I turn the CAS is there suppose to be a noise like injectors pumping? Help:D:D: btw they looked like they were very oily..maybe it was just gas?

duffman1278
12-13-2007, 09:18 PM
is that a 510 that I see???? Looks niiice

AsleepAltima
12-13-2007, 09:21 PM
for whatever reason, youre running very rich.
do you have the pressure on the regulator set correctly?
is this a recent thing?

onesicklambo
12-13-2007, 09:25 PM
I havent got it tuned yet...its always been stumbling at idle etc. I havent touched my sard FPR ...should I???

Rusted_PS13
12-13-2007, 09:35 PM
Most likely it was just gas if you just kept trying to start it, it wouldn't hurt to change the plugs

onesicklambo
12-13-2007, 10:40 PM
they looked JUST like the bottom pic;
http://www.spark-plugs.co.uk/graphics/tech/plugconditions/dryandwet.jpg
"Dry and wet fouling
Fouling, either dry (top - matt black, sooty) or wet (bottom - gloss black, sticky),Carbon deposits build up when the plug fails to fire correctly and burn them off. Air/fuel mixture too rich, choke stuck on, electrical problem, extended periods of low speed driving, plug heat range too cold. All should be investigated"


so...prob because I have not got tune or set the timing? Could this "WET FOUL" be causing the motor not to fire?

kevtrinh
12-13-2007, 10:44 PM
check fuel pressure... should be around 38 psi stock with the vacuum plugged in

onesicklambo
12-13-2007, 10:50 PM
^ my defi gauge reads ~3 I think its in BARS? so It would be around 43psi? I looked at the sard regulator..I dont think it can be adjusted? I am going to get ne wplugs...fingers crossed it fires.

Rusted_PS13
12-13-2007, 11:05 PM
Sard regulator can be adjusted (loosen the lower nut 13 i think and than adjust it from the smaller one 10) , fouled plugs can cause it to not start, what kind of plugs are you running? BKR7E? what is it gapped at?

HalveBlue
12-13-2007, 11:54 PM
Fouled plags can cause your engine not to catch.

But you need to figure out why your plugs are fouling up to begin with.

Things to check: Injector O-rings, Fuel rail, piston rings, head gasket.

It doesn't have to be fuel that fouled your plugs. In rare cases oil and coolant may be the culprit.

Lastly, make sure you let the cylinders dry out. Remove all the sparkplugs and let the gasoline evaporate/leak down. This can take anywhere from a few minutes to a couple of hours. Use an air hose (if available) to dry out the cylinders more quickly.

Good Luck!

Chrischeezer
12-14-2007, 05:10 AM
lets see that car plz!!???

what type of fuel system do u have? what size injectors?
do all the plugs look the exact same?

Koopa Troopa
12-14-2007, 05:40 AM
Just turn the crew on the top to the left a quarter turn until the idle changes.. That should help it run a little leaner.

onesicklambo
12-14-2007, 08:40 PM
lets see that car plz!!???

what type of fuel system do u have? what size injectors?
do all the plugs look the exact same?

Walbro 255, fuel cell, RC 750cc,SARD FPR, SARD fuelrail, AN's and SS.
Well tried again tonight..cranked and fired for a SECOND, very rough.
So I took em all out AGAIN.. gapped .030 all are black and wet except for the last cylinder. Geeze...leaky injector??? But THREE!? adjusted the fuel pressure to ~40psi. I hate sr's. guess im gonna have to take it to a shop I give up:loco: i dont get..it started fine and ran 20times.. then all of a sudden it started to idel REALLY rough, died and wont start again. anyone in NORCAL wanna look at it? Ill pay:D


per chrisscheezer request
http://i2.photobucket.com/albums/y14/bmxpert57/P1010029.jpg
http://i2.photobucket.com/albums/y14/bmxpert57/P1010025.jpg
and my stupidd motor that wont start
http://i121.photobucket.com/albums/o237/mesojdm/DSC08903.jpg

S13Boosts
12-15-2007, 02:28 AM
510..:love:


mesglength

brewster240
12-15-2007, 02:33 AM
wheres the convertible aerostar?

nicku
12-15-2007, 08:31 AM
it might possiblely be the timing, too...my car has the same problem....we didnt think it would be the timing...but it ended up to be the timing was way off

AsleepAltima
12-17-2007, 05:54 PM
beautiful car man, very nice setup.
hows it running now?

serturbo
12-18-2007, 12:52 AM
I second that beautiful car statement.

What type of engine management? Sounds like you really need to get a good base tune on it.

It could be leaky injectors or orings. Let everything dry out and then turn the pump on. Don't start the engine. Check if fuel is getting into the cylinders.

onesicklambo
12-19-2007, 12:56 AM
thanks guys..car still hasnt started yet. All i have right now is a ENTHAPY flash. I have not even touched the timing..ive messed with the CAS but thats it.\ i am gettin a SAFC NEO and gonna get it tuned