i need help i think i blew the old 240 up - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

MDSrRider · 03-23-2002, 04:13 PM

well ithought i had a stuck injector when my crank case was full of gas so i figured out that it was my number 2 cylinder having the problem by the amount of gas in it. so i cleared it out put new plugs wires, and distributer cap on it and and a new injector still no luck. my car is still smoking like crazy and now leaking gas from the motor some how has anyone had this problem or have a clue what could be wrong? it is a 91 16 valve motor
<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/nervous.gif" border="0" valign="absmiddle" alt=':nervous:'>  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/confused.gif" border="0" valign="absmiddle" alt='???'>

HotRodGuy · 03-23-2002, 09:07 PM

Dude, from what I know about engines, it sounds like yer rings are shot! <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/sad.gif" border="0" valign="absmiddle" alt='

'>  

Just where is the gas leaking from?

When ya say that yer crankcase is full of gas, do ya mean the bottom end (where the crank and rods are) or the top end (like inside the piston chamber)?

misnomer · 03-23-2002, 11:14 PM

Like HotRod said, it sounds like rings. Looks like time to rebuild the motor <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt='

'> (or at least replace that ring). As far as the car smoking, that is often caused by a bad headgasket, with coolant getting into the combustion chambers. What color smoke?

geeaj · 03-24-2002, 11:19 AM

Hot rod guy is on the right track. You should do a compression check to figure out if its a head gasket or blown ring. Take the readings from each cylinder, you have have +- 15psi within each bore. Find the reading that is the lowest, pour a little motor oil in the spark plug gallery and test again. If compression goes up, then its a problem with the rings, the oil acts as a sealant to raise the psi. If nothing happens, your head gasket is most likely shot.

03-23-2002, 04:13 PM	#1
MDSrRider Join Date: Mar 2002 Posts: 31 Trader Rating: (0) Feedback Score: 0 reviews	well ithought i had a stuck injector when my crank case was full of gas so i figured out that it was my number 2 cylinder having the problem by the amount of gas in it. so i cleared it out put new plugs wires, and distributer cap on it and and a new injector still no luck. my car is still smoking like crazy and now leaking gas from the motor some how has anyone had this problem or have a clue what could be wrong? it is a 91 16 valve motor <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/nervous.gif" border="0" valign="absmiddle" alt=':nervous:'>  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/confused.gif" border="0" valign="absmiddle" alt='???'> __________________ I LLLOOOOOVE THE COCK!!!!!!!!!!!

03-23-2002, 09:07 PM	#2
HotRodGuy Leaky Injector Join Date: Mar 2002 Location: Tennessee Age: 54 Posts: 105 Trader Rating: (0) Feedback Score: 0 reviews	Dude, from what I know about engines, it sounds like yer rings are shot! <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/sad.gif" border="0" valign="absmiddle" alt=''>   Just where is the gas leaking from? When ya say that yer crankcase is full of gas, do ya mean the bottom end (where the crank and rods are) or the top end (like inside the piston chamber)? __________________ '91 240sx SE Fastback (sold to a kid who wrecked it) '93 Chevy Silverado '03 Chevy Cavalier '05 Chevy Tahoe If it ain't broke... don't fix it, just tweek on it and make it faster!

03-23-2002, 11:14 PM	#3
misnomer Nissanaholic! Join Date: Jul 2001 Location: Nevada Posts: 2,293 Trader Rating: (0) Feedback Score: 0 reviews	Like HotRod said, it sounds like rings. Looks like time to rebuild the motor <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt=''> (or at least replace that ring). As far as the car smoking, that is often caused by a bad headgasket, with coolant getting into the combustion chambers. What color smoke? __________________ Rowsdower saves us and saves all the world!

03-24-2002, 11:19 AM	#4
geeaj Zilvia Junkie Join Date: Dec 2001 Posts: 357 Trader Rating: (0) Feedback Score: 0 reviews	Hot rod guy is on the right track. You should do a compression check to figure out if its a head gasket or blown ring. Take the readings from each cylinder, you have have +- 15psi within each bore. Find the reading that is the lowest, pour a little motor oil in the spark plug gallery and test again. If compression goes up, then its a problem with the rings, the oil acts as a sealant to raise the psi. If nothing happens, your head gasket is most likely shot. __________________ Beware the fury of a silent man, be more cautious of his silent farts....