'87 YJ Whine***HELP*** - Page 2 - JeepForum.com
Reply
 
LinkBack Thread Tools
post #16 of 26 Old 09-11-2013, 04:48 AM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 21,073
If it is a vacuum issue then start by spraying around with carb cleaner and see if the idle changes.

Que89YJ is offline  
Sponsored Links
Advertisement
 
post #17 of 26 Old 09-11-2013, 09:24 AM
DustyGeneral
Registered User
1999 XJ Cherokee 
 
Join Date: Sep 2013
Location: Baltimore
Posts: 124
I have a thread going on about my YJ's noise. sounds exactly like your problem. 99.99% sure it's my alt. I am going to change it out on Friday. Here's what I did.

http://www.jeepforum.com/forum/f12/w...noise-1573638/
DustyGeneral is offline  
post #18 of 26 Old 09-11-2013, 10:04 AM
gtg413i
Registered User
2003 WJ 
 
Join Date: Jun 2011
Location: Bay Area
Posts: 1,420
I did a detailed post on swapping the 140 amp alternator (cs144 alternator swap into yj). It is real cheap too. I also vote your issue is the alternator bearing. The part store guy told me those are pressed on so you cant easily replace it. Better to get a new one. My grand cherokee alternator whines at me very loud. Need to fix that one day.
gtg413i is offline  
post #19 of 26 Old 09-11-2013, 09:02 PM Thread Starter
SPYDERYJ
Registered User
1987 YJ Wrangler 
 
Join Date: Sep 2013
Location: Waianae
Posts: 33
Well I got another opinion today that thinks its the power steering bearing starting to go. The alt is fine, no power issues and took the belt off of it and sound remained. I am going to remove the power steering belt probably tomorrow and check it and if that's it hope and pray they have one on Oahu!

1987 YJ with 6" shackle lift on 33x12.50R15's.
SPYDERYJ is offline  
post #20 of 26 Old 09-24-2013, 04:03 AM Thread Starter
SPYDERYJ
Registered User
1987 YJ Wrangler 
 
Join Date: Sep 2013
Location: Waianae
Posts: 33
Anybody got any good advice on the easiest way to troubleshoot a crank/camshaft bearing without doing a partial rebuild? I've already down a full oil change with heavier oil and it didn't alter the sound or how long it takes for the sound to come on.
Also is there any ballpark on how much it would be for a 2.5L "rebuild kit". Now I'm not saying that there is an actual kit with new consumables (unless there actually is one) but if anyone has done one of these recently please let me know about how much it cost you. I'm weighing my options as I have my eye on a couple possible engines for swap but can't find any with manual trans and I know I can't put an AX-5 onto a 4.0L.

1987 YJ with 6" shackle lift on 33x12.50R15's.
SPYDERYJ is offline  
post #21 of 26 Old 09-24-2013, 01:05 PM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 21,073
You can put an aw4 into it if you find one with a 4.0l. it is a little work swapping and welding but doable. Without knowing what you are dealing with it is impossible to figure cost. Miles should come into play on deciding wether you should just do a bearing swap. There was a marine on here Kelti who just dropped the pan and popped in all the bearings and drove the thing into the ground until he snapped the frame. To isolate the noise you need a stethiscope or a long piece of metal like and extension or big screwdriver.

https://www.youtube.com/watch?v=RJOn-f_M8d8

There are a bunch of possibilities for noise. Oil pump, timing chain distributor bearing. Try and isolate it down. I am not saying it isnt the engine itself but the 2.5 and 4.0l are both great engines and regularly get more 250,000. I am going to PM you a member here on the forum. He is in Hawaii. He might be able to direct you to some parts when you figure out where the noise is coming from.
Que89YJ is offline  
post #22 of 26 Old 09-25-2013, 12:51 AM
ashland82391
Out of money yet...Yup!
 
ashland82391's Avatar
1993 YJ Wrangler 
 
Join Date: Sep 2011
Location: Chandler
Posts: 7,834
Surprised no one has said idler pulley... Have you removed the serpentine belt and start it to see if the sound went away?
ashland82391 is offline  
post #23 of 26 Old 09-25-2013, 01:24 AM Thread Starter
SPYDERYJ
Registered User
1987 YJ Wrangler 
 
Join Date: Sep 2013
Location: Waianae
Posts: 33
It's a 2.5L so no serpentine belt. But yes I've removed both the belts.

1987 YJ with 6" shackle lift on 33x12.50R15's.
SPYDERYJ is offline  
post #24 of 26 Old 09-25-2013, 01:33 AM
ashland82391
Out of money yet...Yup!
 
ashland82391's Avatar
1993 YJ Wrangler 
 
Join Date: Sep 2011
Location: Chandler
Posts: 7,834
Quote:
Originally Posted by SPYDERYJ View Post
It's a 2.5L so no serpentine belt. But yes I've removed both the belts.
Nope, 2.5 definitely had a serpentine belt.
ashland82391 is offline  
post #25 of 26 Old 09-25-2013, 07:43 AM Thread Starter
SPYDERYJ
Registered User
1987 YJ Wrangler 
 
Join Date: Sep 2013
Location: Waianae
Posts: 33
They have either serpentine or dual belt configuration sorry. Mine is the dual belt.

1987 YJ with 6" shackle lift on 33x12.50R15's.
SPYDERYJ is offline  
post #26 of 26 Old 09-25-2013, 10:26 AM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 21,073
Look at this video and you will get an idea of where the distributor and oil pump sit inside the engine. The distributor gear drives the oil pump from the cam shaft gear on the distributor. I hope it helps you get an idea because you said the noise was in the middle:
https://www.youtube.com/watch?v=RSpREm5Qazk
Que89YJ is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com 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 e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




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



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 Off
Pingbacks are On
Refbacks are On

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