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xterra+hardbody
Offline
5 posts
4-3-2005
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| « Re: HOW-TO: Fix Your Timing Chain Rattle (ILikeMy240sx) | 2:28 PM 4/3/2005 |
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This may be a silly question, but if you are having this issue due to the fact that your tensioners are gunked up, wouldn't pouring something like sea foam into th ecrank case solve the issue? I am a complete newb at working on cars, but it seems logical to me. If oil moves past the tensioners so would the sea foam. If my understanding is incorrect please let me know.
I currently have a 97 hardbody with the symptoms described. Loud rattle on start, quiter rattle while idle. I plan on putting a bit of sea foam in the crank case today to see if it helps.
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ILikeMy240sx
Better Than Mr. K
Offline
5358 posts
SR Power
Ann Arbor MI
5-28-2004
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Yes theoretically it would work... That depends on how gunked up it is tho.. Honestly, when I cleaned my tensioner they were stuck pretty hard I doubt it would have been solved with seafoam. Besides, those guides do not belong there anyways... Might as well as remove it.Like ive said before you have to make sure your oil pressure is good before you do anything... Regardless of your tensioners condition if your oil pressure is bad tensioner wont do its job
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4felix20
Offline
1088 posts
Emerald Blue S14 - 2nd KAT in progress. waiting on enthalpy's ECU tune.
NV
7-24-2002
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do you guys know what that little knob is for on the distributor cap? it's like a teardrop shaped turnable knob...
Shift_Chirp
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ILikeMy240sx
Better Than Mr. K
Offline
5358 posts
SR Power
Ann Arbor MI
5-28-2004
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Im not sure what you mean by a knob... do you have a picture or where its located on the dist?
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xterra+hardbody
Offline
5 posts
4-3-2005
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Well I put the seafoam in. It sounds a little better, but I still have this very violent noise when the engine starts fter it has been sitting for a while.The noise is like two pieces of aluminum banging together hard.
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4felix20
Offline
1088 posts
Emerald Blue S14 - 2nd KAT in progress. waiting on enthalpy's ECU tune.
NV
7-24-2002
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| « Re: HOW-TO: Fix Your Timing Chain Rattle (ILikeMy240sx) | 3:35 PM 4/6/2005 |
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this little knob here...mine turns a little.
Modified by 4felix20 at 12:07 AM 4/8/2005
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xterra+hardbody
Offline
5 posts
4-3-2005
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Update:I had the oil changed today and afterwards it sounds so much worse than it did before I put the seafoam in. The two places that I took it today didn't have an oil presssure gauge to test it with. I would have gotten my own gauge today and done it but I have no clue where to put it. The 2 parts stores that I went to didn't have manuals for a 97 nissan hardbody. I wish I knew exactly what the timing chain issue sounds like. I am in an apartment and its against the rules to work on a vehicle so I would have to pay some one to do it. Would hate to spend that kind of cash on something so easy to fix..... Anyone got a sound clip of it?
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sanioll
Offline
2289 posts
240SX SE - Toyota Camry
Washington, DC
7-17-2004
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| « Re: (xterra+hardbody) | 11:58 AM 4/7/2005 |
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| Quote, originally posted by xterra+hardbody » | | Anyone got a sound clip of it? |
yes, but its on the hard drive on PC downstairs and ummmm... i'm 50 miles away from home. I'll post it if i can find it.
How to change transmission fluid, Differential Fluid, Drive Belts, and Seafoam your S13, '91-93 240SX.
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yoozef
Offline
855 posts
7-25-2004
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good write up
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Chaotic_Warlord
Offline
2587 posts
Black 5 speed Swapped 1995 240sx
Killadelphia PA
2-18-2005
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| « Re: (yoozef) | 10:45 PM 4/22/2005 |
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I have the sound and I know its my guides, will remove them one of these weekends when it's not raining and my buddy is over. My question is this, when I am sitting at idle I can hear it (marbles in a can) in the area of the top guide, but I can really hear it when I am driving, especially if I push lightly on the gas to go up a hill or incline. I used to have a similar noise in my 84 Olds Cutlass Supreme but that noise was the Catalytic Converter. Would this noise I'm hearing while driving down the road be the timing chain guides or the cat. ? It's really loud from like 10mph up to around 40 mph, between the rattling and the bad rear wheel hub (and now my brakes are starting to squeal) my car is just plain out noisy. I just need some free time some spare hands and some extra cash to do so serious maintenance.
 Philadelphia Police Dept. Application Process
Delayed because Mayor Nutter is a D-Bag  Visit my Operation Flashpoint:Dragon Rising Thread it's got all the latest info. http://forums.nicoclub.com/zer...e-omg
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ILikeMy240sx
Better Than Mr. K
Offline
5358 posts
SR Power
Ann Arbor MI
5-28-2004
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I bet its the guides as you go faster, higher the rev and faster the chain spins...Where is the rattling coming from? obviously if its coming from the front then its the guides
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Chaotic_Warlord
Offline
2587 posts
Black 5 speed Swapped 1995 240sx
Killadelphia PA
2-18-2005
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| « Re: (ILikeMy240sx) | 3:40 PM 4/25/2005 |
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I can't really tell because it only happens when I am driving down the road, if I have it park and rev my engine it doesn't make the sound. Like I stated before, it only does it sometimes and thats usually only when I go up an incline. Having said that I am wondering if its the gears in my slushbox, but I've driven automatics before and have even burned through a couple auto tranny's before and it never sounded like this. Hopefully I'll get a nice weekend the same time I have the money for parts to replace the gaskets on my valve cover so I'll take the chain guides out then.
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brisknfade
Offline
1705 posts
NB8C FTW
Fontana CA and/or Houston TX
10-3-2004
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| « Re: (Chaotic_Warlord) | 12:42 AM 4/26/2005 |
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So today I decided to try this out after getting my valve cover gasket from autozone. I pulled off the valve cover and i saw that the timing chain was gone... The bolts were still there though. I guess the previous owner must of had them removed at the dealership or something. But then i immediately thought to myself "Why did i still hear that ticking noise???"I looked at the valve cover and saw that the chain must of been hitting that instead. It had noticeable marks. So tomorrow im going to try and see if the guides are gunked up or not. Hopefully that's the problem. EDIT: EEEK! Upon further inspection, it looked like i actually had the guide CRACK OFF in there. Amazingly nothing happend. Must have happened some time back. Engine still feels nice and peppy and pulls pretty hard. Yay.
Modified by brisknfade at 8:13 PM 4/26/2005
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Neejay
Online
2208 posts
1991 240sx Coupe
Somewhere US
1-3-2004
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| « Re: (ILikeMy240sx) | 8:00 PM 5/5/2005 |
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| Quote, originally posted by ILikeMy240sx » | | I bet its the guides as you go faster, higher the rev and faster the chain spins... Where is the rattling coming from? obviously if its coming from the front then its the guides |
What causes the chain to rattle on startup? Guides? I have a SOHC. Ive always had it, but today I *think* I heard it rattling a bit at idle.
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jgtc_s14
Offline
134 posts
nissan 240sx s14
kitchener on
10-11-2004
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hey would i have to drain my oil if i remove the front cover? or it dosent matter
s14
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ILikeMy240sx
Better Than Mr. K
Offline
5358 posts
SR Power
Ann Arbor MI
5-28-2004
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rattling during startup is probably due to little oil pressure during startup...To take off the front cover, you do not have to drain oil because all the oil will be in your drain pan.
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Neejay
Online
2208 posts
1991 240sx Coupe
Somewhere US
1-3-2004
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| « Re: (ILikeMy240sx) | 10:07 PM 5/7/2005 |
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| Quote, originally posted by ILikeMy240sx » | | rattling during startup is probably due to little oil pressure during startup... To take off the front cover, you do not have to drain oil because all the oil will be in your drain pan. |
Oil pump would be the only thing causing this?
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DC2 Darren
Hot Dog
Offline
4130 posts
2002 Subaru WRX
386 FL
4-4-2005
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mine only makes the noise at idle, the minute the engine goes above idle, the noise stops, is this the chain?
~Formerly GrilledCheese33
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ILikeMy240sx
Better Than Mr. K
Offline
5358 posts
SR Power
Ann Arbor MI
5-28-2004
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Im guessing low oil pressure at idle causing the rattling but I might be wrong.There are # of things that will cause low oil pressure. Oil pump, oil filter, oil pick up, oil passage being blocked. As far as diagnosing oil pressure problem, I do not know much about it but checking the oil pressure would be the first step. Remember, if your chain is rattling not because of the tensioner but oil pressure... even with the tensioners cleaned and guides removed, there is a chance you will still hear rattling due to the lower chain hitting on its guide(which you are not supppoed to remove)
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Blade7764
Offline
136 posts
1990 240sx Fastback. Intake and straight pipe.
Detroit
9-16-2002
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I beleive that s13's have the same problem, and if so, Im going to do this for sure. Sweet guide, I would love it if someone were to say the differences between the s13 and s14 so we don't mess up!
V-8 owns you
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ILikeMy240sx
Better Than Mr. K
Offline
5358 posts
SR Power
Ann Arbor MI
5-28-2004
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S13 DOHC and S14 procedure should be similar except when it comes to adjusting the distributor. I included the picture of how S13 distributor should look like when its aligned properly. Other than that everything should be similar
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sXi
Offline
408 posts
3-20-2005
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how do you tell when to replace the whole timing chain thing
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Blade7764
Offline
136 posts
1990 240sx Fastback. Intake and straight pipe.
Detroit
9-16-2002
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my s13 is SOHC tho, thats the prob
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Neejay
Online
2208 posts
1991 240sx Coupe
Somewhere US
1-3-2004
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| « Re: (Blade7764) | 9:46 PM 6/3/2005 |
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| Quote, originally posted by Blade7764 » | | my s13 is SOHC tho, thats the prob |
Same here....so far no one has posted a how-to/common problem for SOHC I guess no one bothers with it...
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Blade7764
Offline
136 posts
1990 240sx Fastback. Intake and straight pipe.
Detroit
9-16-2002
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It sounds like its the same problem, so all we have to do is remove the upper guide on our SOHC engines.
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scarboroughdub
Offline
140 posts
s14
Toronto on
6-5-2005
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| « Re: HOW-TO: Fix Your Timing Chain Rattle (ILikeMy240sx) | 8:41 PM 6/6/2005 |
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so let me get this straight, you remove the guides completely and you dont buy new ones to replace them, you just assemble the cover back on and your set  .let me know cause i got the rattle problem right now and i was going to go to the dealership and buy all new parts thanks.
95 KA24DET 350whp/347Tq at 14psi SOLD.
95 RB25DET looking for 800whp.Now selling Z32 ecu's Chipped for rb25det.
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ILikeMy240sx
Better Than Mr. K
Offline
5358 posts
SR Power
Ann Arbor MI
5-28-2004
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those two upper guides.. NOT THE LOWER TIMING CHAIN GUIDE are considered useless by Nissan. Its found in their TSB.. Nissan says you get rid of it. Go to the dealership and ask for those parts and theyll just say you dont need it.
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Neejay
Online
2208 posts
1991 240sx Coupe
Somewhere US
1-3-2004
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| « Re: (ILikeMy240sx) | 5:12 PM 6/9/2005 |
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| Quote, originally posted by ILikeMy240sx » | | those two upper guides.. NOT THE LOWER TIMING CHAIN GUIDE are considered useless by Nissan. Its found in their TSB.. Nissan says you get rid of it. Go to the dealership and ask for those parts and theyll just say you dont need it. |
DOHC right?
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ILikeMy240sx
Better Than Mr. K
Offline
5358 posts
SR Power
Ann Arbor MI
5-28-2004
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YUP they did it for the DOHC but not too sure about SOHC. Doesnt hurt to see what people did with it.But upper timing chain guides are usually useless it seems with Nissans
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VinceSez
Offline
1377 posts
1992 Nissan 240sx
Las Vegas NV
4-5-2005
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if i were to remove the two guides i wont have the "ticking of death" problem any more? or will it just slow down the problem?
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SlIp'n'sLiDe
Offline
46 posts
240
Oak Creek WI
4-29-2005
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thanks for the good write up, just inspired me to do this. 
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silviaxspress
Offline
148 posts
everything
SoCali
7-7-2004
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| « Re: (SlIp'n'sLiDe) | 4:12 PM 6/20/2005 |
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6 months after reading this post, I have finally decided to try work on my car. I need help. I am stuck at the tensioner. It will not move at all! I have tried pushing the tensioner inward toward the chain and outward, but it just doesn't move. A new top tensioner would cost me $42.00, but should i change the bottom tensioner as well($38.00)??? There seems to be a lot more parts involve that needs to be remove, is this so? Please advise me as what i would need to remove so I have some idea before moving foward to replace tensioner(s). My dad is arguing that there might be a way to adjust the tensioners, which I keep saying NO. Is is true that tensioners cannot be adjusted? At this moment, I have put it on hold. I will post pics of my chain guides later. It did not have much wear or rub on them. Here how it looks like under the hood.
 Now, here is a close up of where my timing tension is currently stopped at, an not even moving. It did move like 1/8" when pushing tword the chain, but that was about it.
 Here are 2 videos to show how difficult it was.
Video #1
Had a real difficult time, can't figure out why it's so stiff! Used some Wd-40, but it didn't help.
https://www.csupomona.edu/~rvan/MVI_5294.AVI Video #2
This video shows me moving the timing chain. Is it suppose to be that loose?
https://www.csupomona.edu/~rvan/MVI_5303.AVI
Modified by silviaxspress at 2:51 AM 6/21/2005
323/626/909 areas!
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ILikeMy240sx
Better Than Mr. K
Offline
5358 posts
SR Power
Ann Arbor MI
5-28-2004
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Seems like your top tensioner is gone.... If you saw the video that I have... its obvious that your tensioner has something stuck in it or its just plain broken.No there is no way to adjust these tensioners... They are operated by oil pressure.. its not like a belt tensioner where you can just tighten it. In order to move your bottom tensioner, you have to remove the front cover I think and thats a PITA to do.. if your bottom tensioner moves fine then I would just leave it. Make sure there is nothing stuck behind that top tensioner... If its still stuck.. Id replace it. BTW, my chain did that too when I took the cam sprocket cover off... I suppose the tensioner isnt really tight yet... I think it will be tight when you start the motor...
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sanioll
Offline
2289 posts
240SX SE - Toyota Camry
Washington, DC
7-17-2004
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| « Re: (ILikeMy240sx) | 6:18 PM 6/22/2005 |
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put some soft clothing there, and start hitting it with a hammer, SOFTLY. To see if you can move the tensioner.OKAY, I GOT NEWS FOR YOU PEOPLE. MY S13 KA24DE WAS TICKING AS USUAL RIGHT. 114,000 MILES. N/A. ALL STOCK WITH K&N FILTER. LONG STORY SHORT. IT WAS TICKING BACK THEN, WHEN I WAS USING REGULAR PETROLIUM OIL. LATER I SWITCHED TO MOBIL 1 FULL SYNTHETIC 10W-30, IT WAS STILL TICKING. LAST WEEK, I WENT TO MOBIL 1 0W-40, WHICH I LIKE A LOT. TO MY SURPRISE, THE TICKING IS GONE. YES, ITS GONE BABE!! I HAVE ONLY REMOVED ONE TOP CHAIN GUIDE. THE ONE THAT SITS UNDER THE VALVE COVER. 2ND ONE IS STILL THERE, AND IT WAS TICKING. NOW WITH HEAVIER OIL IT DOES NOT. *JUST SO YOU ALL KNOW.
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