sr20det ROD KNOCK QUESTION AND HELP?????? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

sidedrifts13 · 12-16-2009, 11:51 PM

I have a red top sr20det and i just got it running today, the main reason why i am worried is when i rev the engine up to 3 or 4 rpm i hear a knock but not at high rpms and not at idle can it be a rod knock? Or just a lifter? I don't know, i am pretty bummed out, i think its a rod knock i will get a video up tomorrow, ima go out for a drive on my daily so i can keep my mind off it, dammm
I GUESS WHAT I AM TRYING TO ASK IS; IF IT WAS A ROD KNOCK WILL IT BE KNOCKING ALL THE TIME?
CLICK LINK BELOW FOR VIDEO IT DOESN'T SOUND GOOD

YouTube - S7303323.AVI

sidedrifts13 · 12-17-2009, 12:03 AM

Anybody have an input?

Sileighty_85 · 12-17-2009, 12:32 AM

Yes it will quietly knock at idle and sound will get fast and louder as RPM's increase.

Is it a "Knock" or a "Tick"

Post a vid if possible

sidedrifts13 · 12-17-2009, 01:56 AM

from the sound of it i would say its a knocking sound ill get a vid up tomorrow morning

Ceepo · 12-17-2009, 08:39 AM

pull the oilpan and inspect for chunks of bearing...

brian3676 · 12-17-2009, 01:00 PM

If it is knock then it will just get worse and worse, you have to do a rebuild before it gets worse and runes other things too if it is knock

sidedrifts13 · 12-17-2009, 02:39 PM

video is up it doesnt sound too good damm no more money for this project

sidedrifts13 · 12-17-2009, 03:39 PM

anybody had the same knock?

codyace · 12-17-2009, 09:04 PM

RIP SR20

That's rodknock. I've heard this 100 times

you've got two options

1

backyard hope for you life 100 dollar gamble)...roll a new set of rod bearings in, one size over, hope for the best

2: Get a new long block.

Hope she treated you well, there's no mistaking that sound.

sidedrifts13 · 12-18-2009, 05:25 AM

I figured it was a rod knock this motor was definately a pain in the butt I was pretty bumep, but now i just got to move forward and figure out what i'm going to do, i just did a t28 turbo upgrade damm o well everything has a solution except for death really.... my 240 will be out of comission for a while but i cant wait to drift the f*** out of it

Quote:

Originally Posted by codyace

RIP SR20

That's rodknock. I've heard this 100 times

you've got two options

1

backyard hope for you life 100 dollar gamble)...roll a new set of rod bearings in, one size over, hope for the best

2: Get a new long block.

Hope she treated you well, there's no mistaking that sound.

codyace · 12-18-2009, 01:30 PM

Quote:

Originally Posted by sidedrifts13

I figured it was a rod knock this motor was definately a pain in the butt I was pretty bumep, but now i just got to move forward and figure out what i'm going to do, i just did a t28 turbo upgrade damm o well everything has a solution except for death really.... my 240 will be out of comission for a while but i cant wait to drift the f*** out of it

IF you do decided to reuse the block you have, just make sure your crank and rods are in spec. They usually are if you catch knock soon enough, and you can usually get away with new bearings and then you're happy forever.

sidedrifts13 · 12-18-2009, 02:09 PM

sounds like a plan im gonna get it fixed asap anybody know a good place where i can take it to? any local mechanics or mobile mechanics that would do the work?

codyace · 12-18-2009, 02:51 PM

Quote:

Originally Posted by sidedrifts13

sounds like a plan im gonna get it fixed asap anybody know a good place where i can take it to? any local mechanics or mobile mechanics that would do the work?

Are you in NJ?

sidedrifts13 · 12-18-2009, 03:09 PM

I am located in los angeles CA

*fliprayzin240sx* · 12-18-2009, 07:19 PM

Yup, thats definitely rod knock. Only other time that I head a knock like that and it turned out not to be rod knock was with Hypnotik. His shit wasnt rod knock, it was piston slap. His #3 cylinder somehow was shaped like an egg and the piston was slapping on the the side of the cylinder.

Walperstyle · 12-19-2009, 05:51 AM

if you are changing out the little things, you could also take this time to beef up the head, rocker arm stoppers, cams, and maybe different pistons and rods on the bottom if you wanted to go hardcore.

sidedrifts13 · 12-19-2009, 09:48 AM

Some of my buddies dont think its a rod knock damm where in socal can i go get this checked asap?

armand · 12-19-2009, 10:26 AM

Quote:

Originally Posted by sidedrifts13

anybody had the same knock?

yes my sr makes the same noise as yours at the exact rpm range no noise below or above that rpm range, my motor has been making that noise for 4 almost 5 years now ever since it was rebuilt. the noise has not got any worse overtime.i have pulled the oil pan many times and it been clean every time. my car is daily driven every day to and from work.i don't know what the noise is there have been other people with same noise at the same rpm range.

steve shadows · 12-20-2009, 02:58 AM

If you can get down to LB tomorrow I will give you a couple hours of my time to check it out and give you a final answer. If it's what I think it is (other than rod knock) I may be able to fix it on the spot

sidedrifts13 · 12-21-2009, 06:18 PM

anybody else have any input before i part it out??????????????????????????????

steve shadows · 12-21-2009, 11:44 PM

checked out the car today in person.

This should go as a lesson to swap shops and other DIY'er to make sure to pull the oil pan and check the oil pick up condition as well as hammer out the oil pan or use an upgraded one right off the bat.

These motor's are seriously sensitive to oil starvation of any kind.

I have suggested that he pull the oil pan, check for copper filings from any possible bearing wear and replace the oil pick up if it's broken.

If the oil pressure is just started to fail then you can catch it, get the oil pressure back up to where it needs to be and eliminate the little amount of metal on metal knock you are having with your motor. Saving it.

But it will be a close one.

sidedrifts13 · 01-13-2010, 03:23 AM

Okay guys so I finally droped my oil pan and i found some brass shavings in the oil and also a thicker piece of brass which i am trying to figure out where it came from because it is thicker than a rod bearing and its brass on the inside and outside any ideas???????? i will have pics in a bit

sidedrifts13 · 01-13-2010, 03:41 AM

The small piece looks to be like a brass material anyone know where it could have shaved off from? thanks for the help and sorry for the crappy cell pics

codyace · 01-13-2010, 07:17 AM

brass could be from a thrust bearing? hard to really tell

sidedrifts13 · 01-13-2010, 11:11 AM

that's what I was thinking anyone else have an input? thanks

Quote:

Originally Posted by codyace

brass could be from a thrust bearing? hard to really tell

Ceepo · 01-13-2010, 09:50 PM

at least your bearing didnt look like this lol...

This is what my oilpan looked like when i bought my motor...

I hope all goes well with repairing your motor... i honestly would rebuild that motor...

sidedrifts13 · 01-14-2010, 12:38 AM

yeah mine wasn't that bad but still need to find out what that bigger brass piece is from i wonder if its from the trust bearing, or even the timing chain tensioner

Quote:

Originally Posted by Ceepo

at least your bearing didnt look like this lol...

This is what my oilpan looked like when i bought my motor...

I hope all goes well with repairing your motor... i honestly would rebuild that motor...

codyace · 01-14-2010, 09:58 AM

Tensioner would either be plastic or metal

sidedrifts13 · 01-14-2010, 05:38 PM

Quote:

Originally Posted by codyace

tensioner would either be plastic or metal

cool thanks i ima go get a rebuild anyone know where do they do good work for good prices here in socal? Thanks

Shorsh · 01-14-2010, 06:13 PM

put a b16a in your 240

12-16-2009, 11:51 PM	#1
sidedrifts13 Nissanaholic! Join Date: Jul 2006 Location: LOS ANGELES Age: 37 Posts: 1,883 Trader Rating: (29) Feedback Score: 29 reviews	sr20det ROD KNOCK QUESTION AND HELP?????? I have a red top sr20det and i just got it running today, the main reason why i am worried is when i rev the engine up to 3 or 4 rpm i hear a knock but not at high rpms and not at idle can it be a rod knock? Or just a lifter? I don't know, i am pretty bummed out, i think its a rod knock i will get a video up tomorrow, ima go out for a drive on my daily so i can keep my mind off it, dammm I GUESS WHAT I AM TRYING TO ASK IS; IF IT WAS A ROD KNOCK WILL IT BE KNOCKING ALL THE TIME? CLICK LINK BELOW FOR VIDEO IT DOESN'T SOUND GOOD YouTube - S7303323.AVI Last edited by sidedrifts13; 12-17-2009 at 02:40 PM.. Reason: VIDEO

12-17-2009, 08:39 AM	#5
Ceepo Nissanaholic! Join Date: Jan 2008 Location: Cedar City, Utah Posts: 2,007 Trader Rating: (9) Rides Gallery: Ceepo Feedback Score: 9 reviews	pull the oilpan and inspect for chunks of bearing... __________________ TW: http://zilvia.net/f/cars-sale/390459...d9s-coils.html

12-17-2009, 09:04 PM	#9
codyace Post Whore! Join Date: Dec 2004 Location: Poconos, PA Age: 36 Posts: 8,030 Trader Rating: (58) Feedback Score: 58 reviews	RIP SR20 That's rodknock. I've heard this 100 times you've got two options 1backyard hope for you life 100 dollar gamble)...roll a new set of rod bearings in, one size over, hope for the best 2: Get a new long block. Hope she treated you well, there's no mistaking that sound. __________________ *Want Air Conditioning in your SR20 Swapped car? Check out www.sr20acbrackets.com for more information! Quest Alternator Conversions for SR20!* Check my Group Buy! Tired of lousy internal gates? Go external wastegate with one of my manifolds, Check out my group buy

12-18-2009, 07:19 PM	#15
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	Yup, thats definitely rod knock. Only other time that I head a knock like that and it turned out not to be rod knock was with Hypnotik. His shit wasnt rod knock, it was piston slap. His #3 cylinder somehow was shaped like an egg and the piston was slapping on the the side of the cylinder. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

12-19-2009, 05:51 AM	#16
Walperstyle Nissanaholic! Join Date: Nov 2004 Location: Alberta, Red Derp Age: 40 Posts: 1,729 Trader Rating: (0) Feedback Score: 0 reviews	if you are changing out the little things, you could also take this time to beef up the head, rocker arm stoppers, cams, and maybe different pistons and rods on the bottom if you wanted to go hardcore. __________________ KA-T ORG-Function over Flush

12-17-2009, 12:03 AM	#2
sidedrifts13 Nissanaholic! Join Date: Jul 2006 Location: LOS ANGELES Age: 37 Posts: 1,883 Trader Rating: (29) Feedback Score: 29 reviews	Anybody have an input?

12-17-2009, 12:32 AM	#3
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	Yes it will quietly knock at idle and sound will get fast and louder as RPM's increase. Is it a "Knock" or a "Tick" Post a vid if possible __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

12-17-2009, 01:56 AM	#4
sidedrifts13 Nissanaholic! Join Date: Jul 2006 Location: LOS ANGELES Age: 37 Posts: 1,883 Trader Rating: (29) Feedback Score: 29 reviews	from the sound of it i would say its a knocking sound ill get a vid up tomorrow morning

12-17-2009, 01:00 PM	#6
brian3676 Zilvia Member Join Date: Oct 2006 Location: portland Age: 33 Posts: 205 Trader Rating: (3) Feedback Score: 3 reviews	If it is knock then it will just get worse and worse, you have to do a rebuild before it gets worse and runes other things too if it is knock

12-17-2009, 02:39 PM	#7
sidedrifts13 Nissanaholic! Join Date: Jul 2006 Location: LOS ANGELES Age: 37 Posts: 1,883 Trader Rating: (29) Feedback Score: 29 reviews	video is up it doesnt sound too good damm no more money for this project

12-17-2009, 03:39 PM	#8
sidedrifts13 Nissanaholic! Join Date: Jul 2006 Location: LOS ANGELES Age: 37 Posts: 1,883 Trader Rating: (29) Feedback Score: 29 reviews	anybody had the same knock?

12-18-2009, 02:09 PM	#12
sidedrifts13 Nissanaholic! Join Date: Jul 2006 Location: LOS ANGELES Age: 37 Posts: 1,883 Trader Rating: (29) Feedback Score: 29 reviews	sounds like a plan im gonna get it fixed asap anybody know a good place where i can take it to? any local mechanics or mobile mechanics that would do the work?

12-18-2009, 03:09 PM	#14
sidedrifts13 Nissanaholic! Join Date: Jul 2006 Location: LOS ANGELES Age: 37 Posts: 1,883 Trader Rating: (29) Feedback Score: 29 reviews	I am located in los angeles CA

12-19-2009, 09:48 AM	#17
sidedrifts13 Nissanaholic! Join Date: Jul 2006 Location: LOS ANGELES Age: 37 Posts: 1,883 Trader Rating: (29) Feedback Score: 29 reviews	Some of my buddies dont think its a rod knock damm where in socal can i go get this checked asap?

12-20-2009, 02:58 AM	#19
steve shadows Post Whore! Join Date: Aug 2003 Location: LA and OC Posts: 8,202 Trader Rating: (5) Feedback Score: 5 reviews	If you can get down to LB tomorrow I will give you a couple hours of my time to check it out and give you a final answer. If it's what I think it is (other than rod knock) I may be able to fix it on the spot __________________ Like Me on FaceBook !

12-21-2009, 06:18 PM	#20
sidedrifts13 Nissanaholic! Join Date: Jul 2006 Location: LOS ANGELES Age: 37 Posts: 1,883 Trader Rating: (29) Feedback Score: 29 reviews	anybody else have any input before i part it out??????????????????????????????

12-21-2009, 11:44 PM	#21
steve shadows Post Whore! Join Date: Aug 2003 Location: LA and OC Posts: 8,202 Trader Rating: (5) Feedback Score: 5 reviews	checked out the car today in person. This should go as a lesson to swap shops and other DIY'er to make sure to pull the oil pan and check the oil pick up condition as well as hammer out the oil pan or use an upgraded one right off the bat. These motor's are seriously sensitive to oil starvation of any kind. I have suggested that he pull the oil pan, check for copper filings from any possible bearing wear and replace the oil pick up if it's broken. If the oil pressure is just started to fail then you can catch it, get the oil pressure back up to where it needs to be and eliminate the little amount of metal on metal knock you are having with your motor. Saving it. But it will be a close one. __________________ Like Me on FaceBook !

01-13-2010, 03:23 AM	#22
sidedrifts13 Nissanaholic! Join Date: Jul 2006 Location: LOS ANGELES Age: 37 Posts: 1,883 Trader Rating: (29) Feedback Score: 29 reviews	Okay guys so I finally droped my oil pan and i found some brass shavings in the oil and also a thicker piece of brass which i am trying to figure out where it came from because it is thicker than a rod bearing and its brass on the inside and outside any ideas???????? i will have pics in a bit

01-13-2010, 03:41 AM	#23
sidedrifts13 Nissanaholic! Join Date: Jul 2006 Location: LOS ANGELES Age: 37 Posts: 1,883 Trader Rating: (29) Feedback Score: 29 reviews	The small piece looks to be like a brass material anyone know where it could have shaved off from? thanks for the help and sorry for the crappy cell pics

01-13-2010, 07:17 AM	#24
codyace Post Whore! Join Date: Dec 2004 Location: Poconos, PA Age: 36 Posts: 8,030 Trader Rating: (58) Feedback Score: 58 reviews	brass could be from a thrust bearing? hard to really tell __________________ *Want Air Conditioning in your SR20 Swapped car? Check out www.sr20acbrackets.com for more information! Quest Alternator Conversions for SR20!* Check my Group Buy! Tired of lousy internal gates? Go external wastegate with one of my manifolds, Check out my group buy

01-13-2010, 09:50 PM	#26
Ceepo Nissanaholic! Join Date: Jan 2008 Location: Cedar City, Utah Posts: 2,007 Trader Rating: (9) Rides Gallery: Ceepo Feedback Score: 9 reviews	at least your bearing didnt look like this lol... This is what my oilpan looked like when i bought my motor... I hope all goes well with repairing your motor... i honestly would rebuild that motor... __________________ TW: http://zilvia.net/f/cars-sale/390459...d9s-coils.html

01-14-2010, 09:58 AM	#28
codyace Post Whore! Join Date: Dec 2004 Location: Poconos, PA Age: 36 Posts: 8,030 Trader Rating: (58) Feedback Score: 58 reviews	Tensioner would either be plastic or metal __________________ *Want Air Conditioning in your SR20 Swapped car? Check out www.sr20acbrackets.com for more information! Quest Alternator Conversions for SR20!* Check my Group Buy! Tired of lousy internal gates? Go external wastegate with one of my manifolds, Check out my group buy

01-14-2010, 06:13 PM	#30
Shorsh Zilvia Member Join Date: Mar 2008 Location: G SPEED CORP Posts: 203 Trader Rating: (4) Feedback Score: 4 reviews	put a b16a in your 240 __________________ GSPEED CORP - GARAGE BOSO - MOSHI POWER

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