Grindy Noise coming from cams - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

SidewayZ-s14 · 11-19-2007, 05:45 PM

I have a 95' s14 sr20det, and it was running fine until yesterday

. When i reach around 1500 Rpm, i hear a grindy noise, something like metal grinding on other metal, coming from under the valve covers. I'm pretty sure its coming from my cams. Anyone know what this could be or mean? I really appreciate it guys! Help me get my car back up and running!

-Thanks.

EAT Motorsports · 11-19-2007, 06:53 PM

Grinding noises are never good...

could be oiling issues. try lookin at the cams through the oil filler, or take off the valve cover and take a looksy

SidewayZ-s14 · 11-19-2007, 07:09 PM

Yeah, i had taken off the valve cover, and noticed on the left cam, there we're grooves! Which is a sign of that left cam not getting enough oil! So that little rod that shoots oil onto the cams must have been clogged. I cleaned it and it's still making a grindy noise!

EAT Motorsports · 11-19-2007, 07:13 PM

take the valve cover off and have some one crank if over. with injectors unpluged and coils unpluged of course. See if they are all getting oil it will be a nice constant stream.

SidewayZ-s14 · 11-19-2007, 07:24 PM

Alright, i will try to do that tomorrow! Also there is a hard line that comes from the turbo. Mine is leaking and it has green fluid that looks like anti freeze. But im not sure if this line is the Oil return, or the Coolant to the turbo!

EAT Motorsports · 11-19-2007, 07:29 PM

well the one circled is the oil drain. Which coolant shouldnt come out of it you do you need a new turbo. Also did you check your oil level?

SidewayZ-s14 · 11-19-2007, 07:45 PM

Oil level was fine, yeah i see green coolant coming out of there, you're 100% positive thats my oil drain? This is the 1st day i got my car up and running since i bought my engine from the shop, and it's doing this.

EAT Motorsports · 11-19-2007, 07:47 PM

yup that would be the drain all of the other holes on the turbo are banjo bolts right?

SidewayZ-s14 · 11-19-2007, 07:49 PM

Correct. I took off the oil drain hose today, and when i took it off NOTHING not even one drop of whatever is supposed to be going through there came out. That a bad sign?

EAT Motorsports · 11-19-2007, 08:28 PM

yeah oil is suppose to be going through but it might have already drained out. check to see if the turbo has any free play in the shaft

SidewayZ-s14 · 11-19-2007, 08:31 PM

That doesnt sound like a good thing, when there is supposed to be oil running through there. I'll check it, and i honestly have no idea why green fluid is coming out of it....

EAT Motorsports · 11-19-2007, 08:37 PM

yeah the one circled and the one 180 from that are oil and the two 90 degree to that one both banjo bolts are coolant. Just try to move the turbo shaft back and forth and up and down .

SidewayZ-s14 · 11-19-2007, 08:48 PM

Alright, should i try it from the intake side, or the back?

EAT Motorsports · 11-19-2007, 08:56 PM

doesnt matter do both its the same shaft...

SidewayZ-s14 · 11-19-2007, 08:57 PM

Alright cool, well thanks for all your help!

EAT Motorsports · 11-19-2007, 09:06 PM

yup np hit me up if you need anything.

11-19-2007, 05:45 PM	#1
SidewayZ-s14 BANNED Join Date: Nov 2007 Location: SoCal 714 Posts: 1,061 Trader Rating: (14) Feedback Score: 14 reviews	Grindy Noise coming from cams I have a 95' s14 sr20det, and it was running fine until yesterday . When i reach around 1500 Rpm, i hear a grindy noise, something like metal grinding on other metal, coming from under the valve covers. I'm pretty sure its coming from my cams. Anyone know what this could be or mean? I really appreciate it guys! Help me get my car back up and running! -Thanks.

11-19-2007, 06:53 PM	#2
EAT Motorsports Zilvia Member Join Date: Oct 2007 Location: Kirkland, WA Age: 18 Posts: 242 Trader Rating: (5) Feedback Score: 5 reviews	Grinding noises are never good... could be oiling issues. try lookin at the cams through the oil filler, or take off the valve cover and take a looksy __________________

11-19-2007, 07:13 PM	#4
EAT Motorsports Zilvia Member Join Date: Oct 2007 Location: Kirkland, WA Age: 18 Posts: 242 Trader Rating: (5) Feedback Score: 5 reviews	take the valve cover off and have some one crank if over. with injectors unpluged and coils unpluged of course. See if they are all getting oil it will be a nice constant stream. __________________

11-19-2007, 07:29 PM	#6
EAT Motorsports Zilvia Member Join Date: Oct 2007 Location: Kirkland, WA Age: 18 Posts: 242 Trader Rating: (5) Feedback Score: 5 reviews	well the one circled is the oil drain. Which coolant shouldnt come out of it you do you need a new turbo. Also did you check your oil level? __________________

11-19-2007, 07:47 PM	#8
EAT Motorsports Zilvia Member Join Date: Oct 2007 Location: Kirkland, WA Age: 18 Posts: 242 Trader Rating: (5) Feedback Score: 5 reviews	yup that would be the drain all of the other holes on the turbo are banjo bolts right? __________________

11-19-2007, 07:09 PM	#3
SidewayZ-s14 BANNED Join Date: Nov 2007 Location: SoCal 714 Posts: 1,061 Trader Rating: (14) Feedback Score: 14 reviews	Yeah, i had taken off the valve cover, and noticed on the left cam, there we're grooves! Which is a sign of that left cam not getting enough oil! So that little rod that shoots oil onto the cams must have been clogged. I cleaned it and it's still making a grindy noise!

11-19-2007, 07:24 PM	#5
SidewayZ-s14 BANNED Join Date: Nov 2007 Location: SoCal 714 Posts: 1,061 Trader Rating: (14) Feedback Score: 14 reviews	Alright, i will try to do that tomorrow! Also there is a hard line that comes from the turbo. Mine is leaking and it has green fluid that looks like anti freeze. But im not sure if this line is the Oil return, or the Coolant to the turbo!

11-19-2007, 07:45 PM	#7
SidewayZ-s14 BANNED Join Date: Nov 2007 Location: SoCal 714 Posts: 1,061 Trader Rating: (14) Feedback Score: 14 reviews	Oil level was fine, yeah i see green coolant coming out of there, you're 100% positive thats my oil drain? This is the 1st day i got my car up and running since i bought my engine from the shop, and it's doing this.

11-19-2007, 07:49 PM	#9
SidewayZ-s14 BANNED Join Date: Nov 2007 Location: SoCal 714 Posts: 1,061 Trader Rating: (14) Feedback Score: 14 reviews	Correct. I took off the oil drain hose today, and when i took it off NOTHING not even one drop of whatever is supposed to be going through there came out. That a bad sign?

11-19-2007, 08:28 PM	#10
EAT Motorsports Zilvia Member Join Date: Oct 2007 Location: Kirkland, WA Age: 18 Posts: 242 Trader Rating: (5) Feedback Score: 5 reviews	yeah oil is suppose to be going through but it might have already drained out. check to see if the turbo has any free play in the shaft __________________

11-19-2007, 08:31 PM	#11
SidewayZ-s14 BANNED Join Date: Nov 2007 Location: SoCal 714 Posts: 1,061 Trader Rating: (14) Feedback Score: 14 reviews	That doesnt sound like a good thing, when there is supposed to be oil running through there. I'll check it, and i honestly have no idea why green fluid is coming out of it....

11-19-2007, 08:37 PM	#12
EAT Motorsports Zilvia Member Join Date: Oct 2007 Location: Kirkland, WA Age: 18 Posts: 242 Trader Rating: (5) Feedback Score: 5 reviews	yeah the one circled and the one 180 from that are oil and the two 90 degree to that one both banjo bolts are coolant. Just try to move the turbo shaft back and forth and up and down . __________________

11-19-2007, 08:48 PM	#13
SidewayZ-s14 BANNED Join Date: Nov 2007 Location: SoCal 714 Posts: 1,061 Trader Rating: (14) Feedback Score: 14 reviews	Alright, should i try it from the intake side, or the back?

11-19-2007, 08:56 PM	#14
EAT Motorsports Zilvia Member Join Date: Oct 2007 Location: Kirkland, WA Age: 18 Posts: 242 Trader Rating: (5) Feedback Score: 5 reviews	doesnt matter do both its the same shaft... __________________

11-19-2007, 08:57 PM	#15
SidewayZ-s14 BANNED Join Date: Nov 2007 Location: SoCal 714 Posts: 1,061 Trader Rating: (14) Feedback Score: 14 reviews	Alright cool, well thanks for all your help!

11-19-2007, 09:06 PM	#16
EAT Motorsports Zilvia Member Join Date: Oct 2007 Location: Kirkland, WA Age: 18 Posts: 242 Trader Rating: (5) Feedback Score: 5 reviews	yup np hit me up if you need anything. __________________