Blown Engine and Stranded!!! NEED HELP!!

mazdamp3_18

Member
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06 gti, 06 evo IX
PDHAUDIO83 is in fort wayne indiana and is stranded there b/c his engine is blown from what i have been told....

his filter has oil all over ... im helping him out with all i can but i need people with more knowledge and anyone that can lend a hand....

the engine idles but when reved it shutters a lot.... i origionally thought it was b/c he hooked up his spark plug wires up wrong but now that i know there is oil all over i now know his engine is blown.....

can anyone lend a hand to him....

ill have to relay the message to him since he cant get online...

thank you to anyone who can help out
 
My guess is if he has oil in the intake then it is probably being shot out through the PCV valve into the intake. The best way to check is pull a spark plug out and see if it's covered in oil or not. I'm no expert but that's my best guess.
 
yeah i tried explaining to him about the pcv but he couldnt find it...

i may be driving down to indiana on tuesday to drive him back to grand rapids and i was planning on checking the pcv
 
it might not be as simple as a blown PCV valve... it could be blown piston rings from the description of that "stuttering engine"... I'd have the compression check too... blown piston rings will make a stupid amount of blow by and will not only cause a bunch of air be dumped through the PCV system, but also to the blow-by hose (the hose from the side of the valve cover hooked up to the intake piping)
 
I'd like to know what else was done to the engine mod-wise. Also, what exactly was going on when the problem was first noticed. Also, what type of intake were you using?
 
The PCV valve is what the breather hose from the intake attaches to on the head of the engine, you really can't miss it. It's the only hose that runs from the intake to the head of the engine, just pull it off and check the valve for oil on the head for oil of any kind. I still say the best way is going to be pull a spark plug, that should let you know more.
 
Captain KRM P5 said:
injen cai he was using. what about a blown head gasket?

wouldn't a blown head gasket put oil down the front or back of the engine it's self, like wouldn't you see it more?

Edit: Ken if you want company i'll go with you, I have a lot of very portable tools for traveling and keep ya company if you want, and decide to go.
 
a blown gasket would indeed leak around the valve cover and below. i know he has nos and an injen intake. i think thats it.
 
Edit: Ken if you want company i'll go with you, I have a lot of very portable tools for traveling and keep ya company if you want, and decide to go.

thats fine with me - i first need to know if he'd like/need me to come down and where exactly in ft. wayne he is. anything i can do to help.

as for the head gasket, it may not be visible at all. we blew the one on the Laser and there was no leak at all that was visible anywhere.
 
But the question is would a blown head gasket put oil in the intake??

See I guess in my head (not that I know everything especially about forced induction) because a PCV is the part that keeps postivie pressue inside the crank. If the valve had gone bad it would again in theory not be keeping that pressure and therefore causeing the drivability issuse. Not to mention the oil leak he is obvioulsy having and being concentrated in the intake.

Just a theory, sometimes it helps to kinda talk all possiblities out, I guess none of us are going on very many details so we're all kinda guessing.
 
Damn, another blown MP3 engine from Nitrous...DAMN! (sad)

Do you have any white smoke comming out the back of your ride? How are the water/coolant levels in the resovoir?
 
uhh NO

the PCV valve is at 12 o'clock of the valve cover that goes to a tee branch before going to the intake manifold

the breather hose goes from the side of the valve cover TO the intake air piping BEFORE the throttle body

MazdaspeedZOOM said:
The PCV valve is what the breather hose from the intake attaches to on the head of the engine, you really can't miss it. It's the only hose that runs from the intake to the head of the engine, just pull it off and check the valve for oil on the head for oil of any kind. I still say the best way is going to be pull a spark plug, that should let you know more.
 
NO

the PCV valve is to VENT crank case blowby BACK to the intake system... this is to protect the engine seals

why do they call it POSITIVE CRANKCASE VENTILATION? :rolleyes:

MazdaspeedZOOM said:
But the question is would a blown head gasket put oil in the intake??

See I guess in my head (not that I know everything especially about forced induction) because a PCV is the part that keeps postivie pressue inside the crank. If the valve had gone bad it would again in theory not be keeping that pressure and therefore causeing the drivability issuse. Not to mention the oil leak he is obvioulsy having and being concentrated in the intake.

Just a theory, sometimes it helps to kinda talk all possiblities out, I guess none of us are going on very many details so we're all kinda guessing.
 
It is most likely blow by...have him check PCV valve, tell him it is the black "plug" with a hose coming out of it on the windshield side of the valve cover...he can't miss it...pull it out by hand and check to see if it is clogged shut for some reason, that may be his problem...If the pcv valve checks out fine, than the problem is most likely internal...Like ED said, if piston rings are damaged and cylinder "leak down" is present, massive amounts of oily air are swirled around the upper head area...that air is sometimes forced into the intake track by means of the small hose running from the valve cover to the intake...the oil then slides down the intake into the hose, saturating it and eventually dripping off...Have him remove the oil cap with the engine idling..do not rev the engine, oil will pool out, but just let it idle and have him place his hand "near" the oil cap hole (obviously don't have him just plug the hole with his hand, oil gets really hot and he will probably burn the s*** out of himself)...If noticable amounts of hot oily air are being pushed out, this is most likely his problem...There also may be a noticable howling sound from the air being pushed out...

The PCV valve dumps the vented gases back into the intake manifold...so the oil in his intake is most likely from the other hose, unless oil learned how to climb up hill into an air current...But if the PCV is clogged shut, it can raise the pressure to the other hose causing his problem...hopefully it is that simple, those valves are like $5
 
the PCV valve can be checked VERY simply... just shake it around and see if it clicks.. if it doesn't do anything, it's bad

crankcase blow by happens when air leaks past the piston rings DOWN into the block, and then there is a air vent that leads back up into the top of the head where the cams are...

the oil cap test DOES NOT WORK on Japanese engines... you get a massive amount of air even on a perfectly working engine.. its because of all the moving parts at the top of the head (the cams), and the reciprocating assembly at the bottom of the block swirls air around... this does NOT inidcate piston ring blow by... revving the engine to 2000rpm should create enough intake vacuum to remove the massive amount of air coming out of the oil cap filler hole.. if it doesn't do that, then there's a problem
 

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