Write-up: how to remove upper timing chain guide - Nissan Forum
SR-Series Engines (DE/VE) Engine Discussion: G20, 91-94 Sentra SE-R, NX2K, 95-98 200SX SE-R, 98-01 Sentra SE

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 23 Old May 1st, 2004, 11:16 PM Thread Starter
Super-Mod with a 240
 
Harris's Avatar
 
Joined: Nov 2002
Location: Fort Riley, KS
Posts: 2,375
Send a message via AIM to Harris
Write-up: how to remove upper timing chain guide

Some SE-R owners have had an issue with a metallic rattling noise at idle when the motor is hot. Usually, this rattle is attributed to two things: either the timing chain tensioner, or the upper timing chain guide.

This write-up is catered to showing you how to remove the upper timing chain guide in case this noise comes up.


To begin, start removing the valve cover bolts. Also remove the bracket that holds the cruise control cable and the crankcase ventilator.









This is the timing chain guide. Over time, the timing chain starts hitting this guide, therefore causing the rattle at idle.




Start removing the two bolts that hold the timing chain guide.




Remove the timing chain guide.





Make sure this is what you take out.




No more timing chain guide!




After having removed the timing chain guide, I noticed that there were deep grooves that were made on the underside of the guide. This most likely happened due to the timing chain hitting the guide for a long, long time.


Now that the timing chain guide has been removed, start closing up the motor. Make sure you don’t have any extra bolts sitting around! Also remember to torque down the valve cover bolts to the correct specifications as outlined by the Factory Service Manual.




Have fun driving your car rattle-free!


"The greatest trick the devil ever pulled was convincing the world he didn't exist".

-The Usual Suspects

Last edited by Harris; Dec 7th, 2005 at 10:33 PM.
Harris is offline  
Sponsored Links
Advertisement
 
post #2 of 23 Old May 2nd, 2004, 12:05 AM
Nissan Enthusiast
 
Joined: Jul 2002
Location: VA Beach Area
Posts: 62
best write up EVAR!

Blair Ellis

To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
blairellis is offline  
post #3 of 23 Old May 2nd, 2004, 07:26 AM
Nissan Fanatic
 
Joined: Jul 2002
Posts: 413
Quote:
Originally Posted by Harris
Make sure you don’t have any extra bolts sitting around!
Don't you mean:

"Make sure you don't drop any bolts into the timing chain cavity"

Good to see you got it out. How'd you go about getting it? Bright light and a magnet antenna?

Brandon
'96 G20 (modified)
NismoPC is offline  
Sponsored Links
Advertisement
 
post #4 of 23 Old May 2nd, 2004, 05:25 PM Thread Starter
Super-Mod with a 240
 
Harris's Avatar
 
Joined: Nov 2002
Location: Fort Riley, KS
Posts: 2,375
Send a message via AIM to Harris
Haha! I got the bolt out. The bright light wasn't even necessary. I fished around for maybe five seconds with the magnet wand before I caught it.

In three weeks, I will be removing the motor and tranny to repair what I need to so that the car can be deemed street worthy. Detailed writeups like this one should be coming up as and when I do the work on the car.

"The greatest trick the devil ever pulled was convincing the world he didn't exist".

-The Usual Suspects

Last edited by Harris; May 2nd, 2004 at 06:16 PM.
Harris is offline  
post #5 of 23 Old May 2nd, 2004, 06:05 PM
Nissan Fanatic
 
Joined: Jul 2002
Posts: 413
Quote:
Originally Posted by Harris
In three weeks, I will be removing the motor and tranny to repair what I need to so that the car can be deemed street worthy. Detailed writeups like this one should be coming up as and when I do the work on the car.
That is great! If I had more time available, I'd love to help, but since I don't just keep us updated on how things are going!!!!

Brandon
'96 G20 (modified)
NismoPC is offline  
post #6 of 23 Old May 6th, 2004, 11:31 AM
NissanForums Newbie
 
Joined: Apr 2004
Posts: 5
Is it ok to drive around with out the chain guide? Isn't that there to help keep it from jumping timing (spinning the cams & wrecking the engine)? If the tensioner is working correctly, why does it start hitting the guide in the first place? I have this same problem (the noise) that's why I'm asking. I cannot afford to wreck/replace my engine right now,so I'm hoping to cure it.
Thanks for the advice.

Last edited by Harris; May 6th, 2004 at 11:58 AM.
gypsyorchid is offline  
post #7 of 23 Old May 6th, 2004, 12:01 PM Thread Starter
Super-Mod with a 240
 
Harris's Avatar
 
Joined: Nov 2002
Location: Fort Riley, KS
Posts: 2,375
Send a message via AIM to Harris
It is safe to run the motor without the guide. But, like everything else with cars, YMMV (Your Mileage May Vary). Nissan actually stopped installing the upper timing chain guide on the SRs around '98. The reason why this rattle occurs is because over time the timing chain starts to slack a little, even in the presence of the timing chain tensioner. The resultant effect is the rattle that you hear at idle with the car warmed up. I removed the guide after replacing the timing chain tensioner failed to shoo away the rattle. With the guide removed, the rattle is completely gone.

"The greatest trick the devil ever pulled was convincing the world he didn't exist".

-The Usual Suspects

Last edited by Harris; Jul 6th, 2004 at 10:59 PM.
Harris is offline  
post #8 of 23 Old May 6th, 2004, 12:10 PM
DNE's VZR Conversion
 
LIUSPEED's Avatar
 
Joined: May 2002
Location: Plano,TX & Anchorage,AK
Posts: 6,079
Send a message via AIM to LIUSPEED Send a message via MSN to LIUSPEED Send a message via Yahoo to LIUSPEED Send a message via Skype™ to LIUSPEED
hey harris..

does that work with the GA as well ?

95 Sentra GXE with Mods - SOLD
95 200Sx SE-R - work in progress

LIUSPEEDTUNING.COM always remember 12/31/08 RIP
LIUSPEED is offline  
post #9 of 23 Old May 6th, 2004, 12:30 PM Thread Starter
Super-Mod with a 240
 
Harris's Avatar
 
Joined: Nov 2002
Location: Fort Riley, KS
Posts: 2,375
Send a message via AIM to Harris
I do not know about the GA. I do know that this is quite a common thing for KA and SR owners to do. The issue with GAs is that they have two timing chains, so there could be other reasons behind the rattling in them compared to the SRs and the KAs.

"The greatest trick the devil ever pulled was convincing the world he didn't exist".

-The Usual Suspects
Harris is offline  
post #10 of 23 Old May 7th, 2004, 01:05 PM
NissanForums Newbie
 
Joined: Apr 2004
Posts: 5
thanks for the info. I'm going to go ahead & remove the top guide, then. Someone said the guides on the sides could be worn out,too. Should I replace these? Do I have to pull the engine? The milage is really high on this vehicle so I wouldn't want to do it if it required pulling the engine. It wouldn't seem worth it.
gypsyorchid is offline  
post #11 of 23 Old May 7th, 2004, 01:51 PM Thread Starter
Super-Mod with a 240
 
Harris's Avatar
 
Joined: Nov 2002
Location: Fort Riley, KS
Posts: 2,375
Send a message via AIM to Harris
For the lower guides, you will have to pull out the motor. Not an easy task at all! So to answer your question, its not worth the time to replace the other guides. Just get another motor if you decide that its time your current motor retired.

"The greatest trick the devil ever pulled was convincing the world he didn't exist".

-The Usual Suspects
Harris is offline  
post #12 of 23 Old May 8th, 2004, 05:28 PM
NissanForums Newbie
 
Joined: Apr 2004
Posts: 5
Ok. That's what I figured. I appreciate the advice.Thanks
gypsyorchid is offline  
post #13 of 23 Old May 10th, 2004, 09:41 PM
Sorta-Newbie
 
Joined: Apr 2004
Location: Waterbury, CT
Posts: 13
Quote:
Originally Posted by Harris
For the lower guides, you will have to pull out the motor. Not an easy task at all! So to answer your question, its not worth the time to replace the other guides. Just get another motor if you decide that its time your current motor retired.
I ended up with a damaged motor after the timing chain jumped..156k miles. (Only the last 6k by me..) The JDM replacement is MUCH better..and after pricing replacement parts, like timing chain, guides, tensioner, and the headwork that was suspected to be needed..like valves, the replacement motor was definitely the way to go...one old one out..one different one in...NO PROBLEM!!
cappy111 is offline  
post #14 of 23 Old Oct 14th, 2004, 02:49 AM
Sorta-Newbie
 
Joined: Oct 2004
Location: Cavite
Posts: 19
Quote:
Originally Posted by cappy111
I ended up with a damaged motor after the timing chain jumped..156k miles. (Only the last 6k by me..) The JDM replacement is MUCH better..and after pricing replacement parts, like timing chain, guides, tensioner, and the headwork that was suspected to be needed..like valves, the replacement motor was definitely the way to go...one old one out..one different one in...NO PROBLEM!!
I have a Sentra GA16DE 1.6L Engine model 1992. You mean I have to change the timing chain when it reaches 150k miles?
Fernan Abracosa is offline  
post #15 of 23 Old Oct 20th, 2004, 08:16 PM
Post Freak
 
Joined: May 2004
Location: CT
Posts: 1,124
Send a message via AIM to Slacky
unless u want the timing to jump and all the valves to bend or most of them... better safe then sorry
Slacky is offline  
Reply

  Nissan Forum > Sentra, Pulsar, NX, B14 200SX > SR-Series Engines (DE/VE)

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Nissan Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
timing chain guide broken .. 97 pickup dwolf Truck & SUV 21 Dec 9th, 2012 03:02 PM
lower timing chain tensioner cbeebe79 GA16DE 1.6L Engine 8 Mar 4th, 2010 02:53 PM
Timing Chain for 1996 Altima 1996nissanlover U13 1993-1997 Altima 18 Jan 2nd, 2008 08:30 AM
timing chain or timing belt on 97 GXE specalk GA16DE 1.6L Engine 6 May 2nd, 2004 07:47 PM
Need help on how to get timing chain cover loose cactusfarmer GA16DE 1.6L Engine 3 Dec 16th, 2003 07:41 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome