Oil in fuel

[tylerearl88]

I mean fuel in oil. Fuel is getting into my oil somehow ( quite a bit). It was running fine last night other than a few boost leaks that I have fixed now. Fixed the last boost leak today and now the thing idles horribly missing on cylinders and the oil has fuel in it. This is a home made kit but does anyone know why this would be happening ? It's an 08 nytro with a Mitsubishi 16t and neils fuel sds fuel system. Was Idling and sounded good last night and day before what has changed? Also where does the idle air line from the throttle bodies go? Into the intake plenum?

 

[BigFish BC]

it should go to your bov -fuel box & boost ref line off fuel regulator should all tee in together + your boost gauge.

 

[Iceman56]

Is it possible for the injectors to leak fuel in the crankcase on these motors??

you have any blowby in crankcase? Could a piston have let go??

 

[tylerearl88]

Compression is good. It runs real rich though even with fuel control box disconnected.

 

[08nytromtxa]

idle hose

in neils kit in the instructions he says he does not want any other holes in the intercooler. he sent me a little k&n filter to clamp on it.

 

[SPOOLED]

did you install a head shim? if so did you check your valve clearance sounds like your valves may be too tight causing poor combustion and washing the cylinders down.

 

[t_thall]

kinda sounds like a stuck injector to me

 

[tylerearl88]

Valve clearance was good when I did the head shim. I do not have an air to air intercooler I have a air to water intercooler. I tapped my idle air tube into the intake plenum. When I first got the sled going I had a few boost leaks and it was running really rich then but it would idle and sound good.

 

[Lococoin]

in neils kit in the instructions he says he does not want any other holes in the intercooler. he sent me a little k&n filter to clamp on it.

Ya you are supposed to leave it disconnected and put that filter on it.

 

[tylerearl88]

I did not recieve a filter but tapping it into the intake should be similar shouldn't it? I do not think that is the problem though as it runs the same without being tapped into the intake. Checked spark and the spark seams wierd and week on all plugs. The spark is not jumping from electrode tip to ground tip but all over the place. Doesn't seam very strong either. Does the same thing on 6 different plugs.

 

[BigFish BC]

did you try a new set once they get fouled bad they are usless no matter what you do.you should be tapped into your throttle bodies all 3 should tee together then one end of that should go to your bov .then the other end should tie in your fuel box & boost gauge then to your fuel reg.that is the proper way to get your boost reference.you did put in the little jet & one way check valve too.